Exact code
Queries like P0171 or P0455 still jump cleanly to the matching page.
Code index
Search and browse OBD-II trouble codes
Search exact DTC codes, full fault titles, common English aliases, and mixed-intent phrases like “rough idle lean code” or “random misfire”.
Search coverage
Built for real lookup patterns, not just exact DTC strings
Full title + alias
The index now understands phrases like “random misfire”, “bank 1 too lean”, and “small EVAP leak”.
Mixed intent
Search also checks symptom and cause phrases, which helps users who only know the English description.
P0008 high
Engine Position System Performance (Bank 1)
The ECU sees Bank 1 engine timing performance drifting outside the expected range, often because the timing system is no longer tracking accurately.
Also searched as: engine position system performance bank 1, bank 1 timing performance code
View causes and checks P0009 high
Engine Position System Performance (Bank 2)
The ECU sees Bank 2 engine timing performance outside the expected range, suggesting timing drift or unstable cam/crank relationship on that bank.
Also searched as: engine position system performance bank 2, bank 2 timing performance code
View causes and checks P000A medium
A Camshaft Position Slow Response (Bank 1)
Bank 1 intake cam timing changes too slowly when the ECU commands movement.
Also searched as: bank 1 intake cam slow response, P000A VVT slow response
View causes and checks P000B medium
B Camshaft Position Slow Response (Bank 1)
Bank 1 exhaust cam timing is responding too slowly to ECU commands.
Also searched as: bank 1 exhaust cam slow response, P000B VVT slow response
View causes and checks P000C medium
A Camshaft Position Slow Response (Bank 2)
Bank 2 intake cam timing is reacting too slowly when the ECU commands it to move.
Also searched as: bank 2 intake cam slow response, P000C VVT slow response
View causes and checks P000D medium
B Camshaft Position Slow Response (Bank 2)
Bank 2 exhaust cam timing changes too slowly in response to ECU commands.
Also searched as: bank 2 exhaust cam slow response, P000D VVT slow response
View causes and checks P0010 medium
A Camshaft Position Actuator Circuit / Open (Bank 1)
The ECU sees an electrical fault in the Bank 1 intake cam actuator control circuit rather than just a timing-performance problem.
Also searched as: intake cam actuator circuit bank 1, VVT actuator circuit open bank 1
View causes and checks P0011 medium
A Camshaft Position Timing Over-Advanced or System Performance (Bank 1)
Bank 1 intake cam timing is more advanced than the ECU expects, or the variable valve timing system is not responding correctly.
Also searched as: cam timing over advanced bank 1, VVT performance bank 1
View causes and checks P0012 medium
A Camshaft Position Timing Over-Retarded (Bank 1)
Bank 1 cam timing is lagging behind where the ECU expects it to be, or the VVT system is slow to respond.
Also searched as: cam timing over retarded bank 1, VVT timing retarded bank 1
View causes and checks P0013 medium
B Camshaft Position Actuator Circuit / Open (Bank 1)
The ECU sees an electrical fault in the Bank 1 exhaust cam actuator circuit, not just an exhaust-cam timing-performance issue.
Also searched as: exhaust cam actuator circuit bank 1, VVT exhaust actuator circuit open bank 1
View causes and checks P0014 medium
B Camshaft Position Timing Over-Advanced or System Performance (Bank 1)
Bank 1 exhaust cam timing is more advanced than expected, or the VVT system is not returning it where it should.
Also searched as: exhaust cam timing over advanced bank 1, bank 1 exhaust cam over advanced
View causes and checks P0015 medium
B Camshaft Position Timing Over-Retarded (Bank 1)
Bank 1 exhaust cam timing is staying more retarded than the ECU expects or is responding too slowly to control commands.
Also searched as: bank 1 exhaust cam over retarded, P0015 VVT code
View causes and checks P0016 high
Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
The ECU thinks crank and cam timing signals are no longer synchronized the way they should be.
Also searched as: crank cam correlation code, timing correlation bank 1 sensor A
View causes and checks P0017 high
Crankshaft Position - Exhaust Camshaft Position Correlation (Bank 1 Sensor B)
The ECU sees the crankshaft and Bank 1 exhaust cam timing signals out of sync beyond the allowed range.
Also searched as: crank exhaust cam correlation, bank 1 sensor B correlation code
View causes and checks P0018 high
Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A)
The ECU sees the Bank 2 cam and crank signals disagreeing on the A-cam relationship.
Also searched as: cam crank correlation bank 2 sensor A, bank 2 sensor A correlation code
View causes and checks P0019 high
Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B)
The ECU sees an implausible crank-to-cam relationship on the Bank 2 B-cam circuit.
Also searched as: cam crank correlation bank 2 sensor B, bank 2 sensor B correlation code
View causes and checks P0020 medium
A Camshaft Position Actuator Circuit / Open (Bank 2)
The ECU detects an electrical problem in the Bank 2 intake cam actuator control circuit.
Also searched as: bank 2 intake cam actuator circuit, VVT actuator circuit open bank 2
View causes and checks P0021 medium
B Camshaft Position Timing Over-Advanced or System Performance (Bank 2)
Bank 2 exhaust cam timing is more advanced than expected, or the VVT system on that bank is not responding correctly.
Also searched as: bank 2 exhaust cam timing over advanced, P0021 VVT code
View causes and checks P0022 medium
A Camshaft Position Timing Over-Retarded (Bank 2)
Bank 2 intake cam timing is lagging behind the commanded or expected position.
Also searched as: bank 2 intake cam over retarded, P0022 VVT code
View causes and checks P0023 medium
B Camshaft Position Actuator Circuit / Open (Bank 2)
The ECU detects an electrical fault in the Bank 2 exhaust cam actuator control circuit.
Also searched as: bank 2 exhaust cam actuator circuit, VVT exhaust actuator circuit open bank 2
View causes and checks P0024 medium
B Camshaft Position Timing Over-Advanced or System Performance (Bank 2)
Bank 2 exhaust cam timing is more advanced than expected or not controlling properly.
Also searched as: bank 2 exhaust cam over advanced, P0024 VVT code
View causes and checks P0025 medium
B Camshaft Position Timing Over-Retarded (Bank 2)
Bank 2 exhaust cam timing is staying more retarded than commanded or returning too slowly.
Also searched as: bank 2 exhaust cam over retarded, P0025 VVT code
View causes and checks P0030 medium
HO2S Heater Control Circuit (Bank 1 Sensor 1)
The ECU sees an electrical problem in the heater circuit for the Bank 1 upstream oxygen sensor.
Also searched as: bank 1 sensor 1 heater circuit, upstream O2 heater circuit bank 1
View causes and checks P0031 medium
HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
The Bank 1 upstream oxygen-sensor heater circuit is reading lower than expected electrically.
Also searched as: bank 1 sensor 1 heater low, upstream O2 heater circuit low bank 1
View causes and checks P0032 medium
HO2S Heater Control Circuit High (Bank 1 Sensor 1)
The Bank 1 upstream oxygen-sensor heater circuit is reading higher than expected electrically.
Also searched as: bank 1 sensor 1 heater high, upstream O2 heater circuit high bank 1
View causes and checks P0036 medium
HO2S Heater Control Circuit (Bank 1 Sensor 2)
The ECU sees an electrical problem in the heater circuit for the Bank 1 downstream oxygen sensor.
Also searched as: bank 1 sensor 2 heater circuit, rear O2 heater circuit bank 1
View causes and checks P0037 medium
HO2S Heater Control Circuit Low (Bank 1 Sensor 2)
The Bank 1 downstream oxygen-sensor heater circuit is reading lower than expected electrically.
Also searched as: bank 1 sensor 2 heater low, rear O2 heater circuit low bank 1
View causes and checks P0038 medium
HO2S Heater Control Circuit High (Bank 1 Sensor 2)
The Bank 1 downstream oxygen-sensor heater circuit is reading higher than expected electrically.
Also searched as: bank 1 sensor 2 heater high, rear O2 heater circuit high bank 1
View causes and checks P0045 medium
Turbocharger/Supercharger Boost Control Solenoid Circuit/Open
The ECU sees the boost-control solenoid circuit as open or unavailable, so commanded turbo control cannot be trusted.
Also searched as: boost control solenoid circuit open, turbo solenoid circuit fault
View causes and checks P0046 medium
Turbocharger/Supercharger Boost Control Solenoid Circuit Range/Performance
The boost-control solenoid circuit is functioning abnormally enough that the ECU does not trust control response.
Also searched as: boost control solenoid performance, turbo solenoid range performance
View causes and checks P0050 medium
HO2S Heater Control Circuit (Bank 2 Sensor 1)
The ECU sees an electrical problem in the heater circuit for the Bank 2 upstream oxygen sensor.
Also searched as: bank 2 sensor 1 heater circuit, upstream O2 heater circuit bank 2
View causes and checks P0051 medium
HO2S Heater Control Circuit Low (Bank 2 Sensor 1)
The Bank 2 upstream oxygen-sensor heater circuit is reading lower than expected electrically.
Also searched as: bank 2 sensor 1 heater low, upstream O2 heater circuit low bank 2
View causes and checks P0052 medium
HO2S Heater Control Circuit High (Bank 2 Sensor 1)
The Bank 2 upstream oxygen-sensor heater circuit is reading higher than expected electrically.
Also searched as: bank 2 sensor 1 heater high, upstream O2 heater circuit high bank 2
View causes and checks P0053 medium
HO2S Heater Resistance (Bank 1 Sensor 1)
The ECU sees heater resistance for the Bank 1 upstream oxygen sensor outside the expected range.
Also searched as: bank 1 sensor 1 heater resistance, upstream O2 heater resistance bank 1
View causes and checks P0054 low
HO2S Heater Resistance (Bank 1 Sensor 2)
The ECU sees heater resistance for the Bank 1 downstream oxygen sensor outside the expected range.
Also searched as: bank 1 sensor 2 heater resistance, rear O2 heater resistance bank 1
View causes and checks P0056 medium
HO2S Heater Control Circuit (Bank 2 Sensor 2)
The ECU sees an electrical problem in the heater circuit for the Bank 2 downstream oxygen sensor.
Also searched as: bank 2 sensor 2 heater circuit, rear O2 heater circuit bank 2
View causes and checks P0057 medium
HO2S Heater Control Circuit Low (Bank 2 Sensor 2)
The Bank 2 downstream oxygen-sensor heater circuit is reading lower than expected electrically.
Also searched as: bank 2 sensor 2 heater low, rear O2 heater circuit low bank 2
View causes and checks P0058 medium
HO2S Heater Control Circuit High (Bank 2 Sensor 2)
The Bank 2 downstream oxygen-sensor heater circuit is reading higher than expected electrically.
Also searched as: bank 2 sensor 2 heater high, rear O2 heater circuit high bank 2
View causes and checks P0059 medium
HO2S Heater Resistance (Bank 2 Sensor 1)
The ECU sees heater resistance for the Bank 2 upstream oxygen sensor outside the expected range.
Also searched as: bank 2 sensor 1 heater resistance, upstream O2 heater resistance bank 2
View causes and checks P0060 low
HO2S Heater Resistance (Bank 2 Sensor 2)
The ECU sees heater resistance for the Bank 2 downstream oxygen sensor outside the expected range.
Also searched as: bank 2 sensor 2 heater resistance, rear O2 heater resistance bank 2
View causes and checks P0068 medium
MAP/MAF - Throttle Position Correlation
The PCM thinks airflow, manifold pressure, and throttle-angle data do not agree with each other.
Also searched as: MAP MAF throttle correlation code, P0068 airflow correlation
View causes and checks P0069 medium
Manifold Absolute Pressure - Barometric Pressure Correlation
The PCM thinks the MAP signal and the barometric pressure estimate no longer agree closely enough to trust load calculation.
Also searched as: MAP barometric pressure correlation, manifold pressure baro correlation
View causes and checks P0087 high
Fuel Rail/System Pressure Too Low
The ECU sees fuel pressure staying lower than commanded or lower than the system expects under the current load.
Also searched as: fuel rail pressure too low, low fuel pressure code
View causes and checks P0088 high
Fuel Rail/System Pressure Too High
The ECU believes fuel rail pressure is staying above the commanded range or above what the system expects.
Also searched as: fuel rail pressure too high, high fuel pressure code
View causes and checks P0089 high
Fuel Pressure Regulator Performance
The fuel pressure control system is responding, but not in the way or range the ECU expects.
Also searched as: fuel pressure regulator performance, P0089 regulator performance code
View causes and checks P0090 high
Fuel Pressure Regulator 1 Control Circuit
The ECU sees a fault in the electrical control path for fuel pressure regulator 1 rather than a clean pressure-only problem.
Also searched as: fuel pressure regulator 1 control circuit, P0090 fuel pressure regulator circuit
View causes and checks P0091 high
Fuel Pressure Regulator 1 Control Circuit Low
The regulator 1 control circuit is being pulled lower than the ECU expects.
Also searched as: fuel pressure regulator 1 control circuit low, P0091 regulator low input
View causes and checks P0092 high
Fuel Pressure Regulator 1 Control Circuit High
The ECU sees the regulator 1 control circuit staying higher than expected.
Also searched as: fuel pressure regulator 1 control circuit high, P0092 regulator high input
View causes and checks P0093 high
Fuel System Leak Detected - Large Leak
The ECU believes fuel pressure or fuel quantity is dropping fast enough to suggest a major leak or major loss of fuel control.
Also searched as: fuel system leak detected large leak, P0093 large fuel leak
View causes and checks P0094 high
Fuel System Leak Detected - Small Leak
The ECU sees a smaller but still abnormal fuel-loss pattern in the system.
Also searched as: fuel system leak detected small leak, P0094 small fuel leak
View causes and checks P00BC medium
Mass or Volume Air Flow A Circuit Range/Performance - Air Flow Too Low
The ECU sees the MAF A signal reporting lower airflow than expected for the current operating conditions.
Also searched as: MAF A airflow too low, P00BC mass air flow too low
View causes and checks P00BD medium
Mass or Volume Air Flow A Circuit Range/Performance - Airflow Too High
The ECU thinks the measured airflow is higher than it should be for the operating conditions, usually because the air metering story is implausible rather than because the engine suddenly became huge.
Also searched as: MAF airflow too high, mass air flow range performance high airflow
View causes and checks P0100 medium
Mass or Volume Air Flow Circuit Malfunction
The ECU sees a basic electrical or rationality fault in the MAF circuit itself.
Also searched as: MAF circuit malfunction, mass air flow circuit fault
View causes and checks P0101 medium
Mass Air Flow Circuit Range/Performance
The ECU thinks the MAF signal does not make sense for current airflow, RPM, or engine load.
Also searched as: MAF range performance, mass air flow performance code
View causes and checks P0102 medium
Mass or Volume Air Flow Circuit Low Input
The ECU sees the MAF signal voltage or frequency reading too low for too long.
Also searched as: MAF low input, mass air flow circuit low
View causes and checks P0103 medium
Mass or Volume Air Flow Circuit High Input
The ECU sees the MAF signal reading too high for the actual engine conditions.
Also searched as: MAF high input, mass air flow circuit high
View causes and checks P0104 medium
Mass or Volume Air Flow Circuit Intermittent
The MAF signal is dropping out or changing irrationally in an intermittent way.
Also searched as: MAF intermittent, mass air flow circuit intermittent
View causes and checks P0105 medium
Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
The ECU sees a basic electrical or rationality problem in the MAP/barometric pressure circuit.
Also searched as: MAP sensor circuit malfunction, manifold pressure sensor fault
View causes and checks P0106 medium
Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
The MAP signal is present, but it does not make sense for current engine load or changes in throttle.
Also searched as: MAP range performance, baro sensor performance code
View causes and checks P0107 medium
Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
The ECU sees the MAP signal voltage stuck lower than the normal operating range.
Also searched as: MAP sensor low input, baro sensor low voltage
View causes and checks P0108 medium
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
The ECU sees the MAP signal voltage higher than the normal operating range.
Also searched as: MAP sensor high input, baro sensor high voltage
View causes and checks P0109 medium
Manifold Absolute Pressure/Barometric Pressure Circuit Intermittent
The ECU sees the MAP signal drop out or jump around intermittently.
Also searched as: MAP sensor intermittent, baro sensor intermittent fault
View causes and checks P0110 medium
Intake Air Temperature Sensor 1 Circuit Malfunction
The ECU sees a basic electrical fault in the intake-air-temperature input rather than believable air-temperature data.
Also searched as: intake air temperature circuit malfunction, IAT sensor circuit fault
View causes and checks P0111 medium
Intake Air Temperature Sensor 1 Circuit Range/Performance
The IAT signal is present, but it does not behave the way the ECU expects for real intake-air conditions.
Also searched as: intake air temperature range performance, IAT plausibility fault
View causes and checks P0112 medium
Intake Air Temperature Sensor 1 Circuit Low Input
The ECU sees the IAT signal pulled low, which usually means the reported intake temperature is implausibly hot.
Also searched as: intake air temperature circuit low input, IAT low voltage
View causes and checks P0113 medium
Intake Air Temperature Sensor 1 Circuit High Input
The ECU sees the IAT signal pulled high, which usually makes the intake temperature look implausibly cold.
Also searched as: intake air temperature circuit high input, IAT high voltage
View causes and checks P0114 medium
Intake Air Temperature Sensor 1 Circuit Intermittent
The IAT signal drops out or jumps around intermittently instead of failing in one steady direction.
Also searched as: intake air temperature intermittent, IAT signal dropout
View causes and checks P0115 medium
Engine Coolant Temperature Circuit Malfunction
The ECU sees a basic fault in the engine coolant temperature sensor circuit rather than a believable temperature signal.
Also searched as: engine coolant temperature circuit malfunction, ECT sensor circuit code
View causes and checks P0116 medium
Engine Coolant Temperature Circuit Range/Performance
The coolant temperature signal changes, but not in a way the ECU considers believable for the actual warm-up pattern.
Also searched as: engine coolant temperature range performance, ECT range performance code
View causes and checks P0117 medium
Engine Coolant Temperature Circuit Low Input
The ECU is seeing an abnormally low-voltage ECT signal, which usually corresponds to an implausibly hot reading.
Also searched as: engine coolant temperature circuit low input, ECT low input
View causes and checks P0118 medium
Engine Coolant Temperature Circuit High Input
The ECU is seeing an abnormally high-voltage ECT signal, which usually corresponds to an implausibly cold reading.
Also searched as: engine coolant temperature circuit high input, ECT high input
View causes and checks P0119 medium
Engine Coolant Temperature Circuit Intermittent
The coolant temperature signal is dropping out or jumping around intermittently rather than failing in one fixed direction.
Also searched as: engine coolant temperature circuit intermittent, ECT intermittent fault
View causes and checks P011A medium
Engine Coolant Temperature Sensor 1/2 Correlation
The PCM thinks two coolant temperature readings that should roughly agree are disagreeing too much.
Also searched as: engine coolant temperature sensor 1 2 correlation, coolant temp sensor correlation
View causes and checks P0120 medium
Throttle/Pedal Position Sensor/Switch A Circuit
The ECU sees an electrical fault in the main throttle or pedal position circuit rather than just a plausibility drift.
Also searched as: throttle position sensor A circuit fault, TPS A circuit malfunction
View causes and checks P0121 medium
Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance
The ECU sees the main throttle or pedal position signal behaving outside the expected range or pattern.
Also searched as: throttle position sensor range performance, TPS A range performance
View causes and checks P0122 medium
Throttle/Pedal Position Sensor/Switch A Circuit Low Input
The primary throttle or pedal position signal is stuck lower than the ECU expects.
Also searched as: TPS A low input, throttle position sensor low voltage
View causes and checks P0123 medium
Throttle/Pedal Position Sensor/Switch A Circuit High Input
The main throttle or pedal position signal is stuck higher than the ECU considers believable.
Also searched as: TPS A high input, throttle position sensor high voltage
View causes and checks P0124 medium
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
The primary throttle or pedal position signal drops out or spikes intermittently instead of failing low or high all the time.
Also searched as: TPS A intermittent, throttle position sensor A intermittent
View causes and checks P0125 low
Insufficient Coolant Temperature for Closed Loop Fuel Control
The engine is not warming up enough for the ECU to enter normal closed-loop fuel control when it expects to.
Also searched as: insufficient coolant temperature for closed loop fuel control, engine will not enter closed loop
View causes and checks P0126 low
Insufficient Coolant Temperature for Stable Operation
The engine is taking too long to warm up or is running cooler than the PCM expects.
Also searched as: insufficient coolant temperature for stable operation, engine not warming up enough
View causes and checks P0128 low
Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
The engine is taking too long to warm up or is running cooler than the ECU expects.
Also searched as: coolant temperature below thermostat regulating temperature, thermostat stuck open code
View causes and checks P0130 medium
O2 Sensor Circuit (Bank 1 Sensor 1)
The ECU sees a problem with the signal circuit for the upstream oxygen sensor on Bank 1.
Also searched as: bank 1 sensor 1 circuit, upstream oxygen sensor circuit bank 1
View causes and checks P0131 medium
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
The Bank 1 upstream oxygen sensor is stuck too low or reporting a lean-biased signal the ECU no longer trusts.
Also searched as: bank 1 sensor 1 low voltage, front O2 stuck lean bank 1
View causes and checks P0132 medium
O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
The Bank 1 upstream oxygen sensor is stuck too high or reporting a rich-biased signal the ECU does not consider believable.
Also searched as: bank 1 sensor 1 high voltage, front O2 stuck rich bank 1
View causes and checks P0133 medium
O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)
The Bank 1 upstream oxygen sensor is switching too slowly for the ECU to trust normal fuel control.
Also searched as: bank 1 sensor 1 slow response, lazy upstream O2 sensor
View causes and checks P0134 medium
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
The ECU sees little or no believable activity from the upstream oxygen sensor on Bank 1.
Also searched as: bank 1 sensor 1 no activity, front O2 no activity bank 1
View causes and checks P0135 medium
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
The upstream oxygen sensor heater on Bank 1 is not warming the sensor as quickly as the ECU expects.
Also searched as: bank 1 sensor 1 heater circuit, upstream O2 heater fault
View causes and checks P0136 low
O2 Sensor Circuit (Bank 1 Sensor 2)
The ECU sees an implausible signal from the downstream oxygen sensor on Bank 1.
Also searched as: bank 1 sensor 2 circuit, rear oxygen sensor circuit bank 1
View causes and checks P0137 low
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)
The downstream oxygen sensor on Bank 1 is stuck too low or is reporting a low-voltage signal the ECU does not trust.
Also searched as: bank 1 sensor 2 low voltage, rear O2 low voltage bank 1
View causes and checks P0138 low
O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
The downstream oxygen sensor on Bank 1 is stuck too high or is reporting a high-voltage signal the ECU considers implausible.
Also searched as: bank 1 sensor 2 high voltage, rear O2 high voltage bank 1
View causes and checks P0139 low
O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)
The downstream oxygen sensor on Bank 1 is reacting too slowly for the ECU to trust catalyst-monitor behavior.
Also searched as: bank 1 sensor 2 slow response, rear O2 slow response bank 1
View causes and checks P0140 low
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
The ECU sees little or no believable signal activity from the downstream oxygen sensor on Bank 1.
Also searched as: bank 1 sensor 2 no activity, rear O2 no activity bank 1
View causes and checks P0141 low
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
The heater circuit for the downstream oxygen sensor on Bank 1 is not operating correctly.
Also searched as: bank 1 sensor 2 heater circuit, downstream O2 heater fault
View causes and checks P0142 low
O2 Sensor Circuit Malfunction (Bank 1 Sensor 3)
The ECU sees an implausible signal-circuit problem at the Bank 1 Sensor 3 oxygen sensor, usually a rear-most catalyst-monitor sensor on systems that use one.
Also searched as: bank 1 sensor 3 circuit, rear-most O2 sensor circuit bank 1
View causes and checks P0143 low
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)
The Bank 1 Sensor 3 oxygen-sensor signal is staying lower than expected or is biased toward a false lean reading.
Also searched as: bank 1 sensor 3 low voltage, rear-most O2 low voltage bank 1
View causes and checks P0144 low
O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)
The Bank 1 Sensor 3 oxygen-sensor signal is staying too high or looks biased toward a rich reading the ECU does not trust.
Also searched as: bank 1 sensor 3 high voltage, rear-most O2 high voltage bank 1
View causes and checks P0145 low
O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)
The Bank 1 Sensor 3 oxygen sensor is responding too slowly for the ECU to trust rear catalyst-monitor behavior.
Also searched as: bank 1 sensor 3 slow response, rear-most O2 slow bank 1
View causes and checks P0146 low
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)
The ECU sees little or no meaningful activity from the Bank 1 Sensor 3 oxygen sensor.
Also searched as: bank 1 sensor 3 no activity, rear-most O2 no activity bank 1
View causes and checks P0147 low
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 3)
The heater circuit for the Bank 1 Sensor 3 oxygen sensor is not operating correctly.
Also searched as: bank 1 sensor 3 heater circuit, rear-most O2 heater fault bank 1
View causes and checks P0150 medium
O2 Sensor Circuit Malfunction (Bank 2 Sensor 1)
The ECU sees an unreliable or implausible signal from the upstream oxygen sensor on Bank 2.
Also searched as: bank 2 sensor 1 circuit fault, upstream O2 circuit malfunction bank 2
View causes and checks P0151 medium
O2 Sensor Circuit Low Voltage (Bank 2 Sensor 1)
The upstream Bank 2 oxygen-sensor signal is staying lower than expected, suggesting a lean-biased or low-voltage condition.
Also searched as: bank 2 sensor 1 low voltage, front O2 low voltage bank 2
View causes and checks P0152 medium
O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)
The upstream Bank 2 oxygen-sensor signal is staying higher than expected, suggesting a rich-biased or high-voltage condition.
Also searched as: bank 2 sensor 1 high voltage, front O2 high voltage bank 2
View causes and checks P0153 medium
O2 Sensor Circuit Slow Response (Bank 2 Sensor 1)
The upstream oxygen sensor on Bank 2 is reacting too slowly to mixture changes.
Also searched as: bank 2 sensor 1 slow response, slow front O2 bank 2
View causes and checks P0154 medium
O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
The ECU sees little or no usable switching activity from the upstream Bank 2 oxygen sensor.
Also searched as: bank 2 sensor 1 no activity, front O2 no activity bank 2
View causes and checks P0155 medium
O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
The upstream oxygen sensor heater on Bank 2 is not warming the sensor the way the ECU expects.
Also searched as: bank 2 sensor 1 heater circuit, upstream O2 heater bank 2
View causes and checks P0156 low
O2 Sensor Circuit (Bank 2 Sensor 2)
The ECU sees an implausible signal from the downstream oxygen sensor on Bank 2.
Also searched as: bank 2 sensor 2 circuit, rear oxygen sensor circuit bank 2
View causes and checks P0157 low
O2 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
The downstream oxygen sensor on Bank 2 is stuck too low or is reporting a low-voltage signal the ECU does not trust.
Also searched as: bank 2 sensor 2 low voltage, rear O2 low voltage bank 2
View causes and checks P0158 low
O2 Sensor Circuit High Voltage (Bank 2 Sensor 2)
The downstream oxygen sensor on Bank 2 is stuck too high or is reporting a high-voltage signal the ECU considers implausible.
Also searched as: bank 2 sensor 2 high voltage, rear O2 high voltage bank 2
View causes and checks P0159 low
O2 Sensor Circuit Slow Response (Bank 2 Sensor 2)
The downstream oxygen sensor on Bank 2 is responding too slowly for trustworthy Bank 2 catalyst monitoring.
Also searched as: bank 2 sensor 2 slow response, rear O2 slow response bank 2
View causes and checks P0160 low
O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)
The ECU sees little or no believable activity from the downstream oxygen sensor on Bank 2.
Also searched as: bank 2 sensor 2 no activity, rear O2 no activity bank 2
View causes and checks P0161 low
O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)
The heater circuit for the downstream oxygen sensor on Bank 2 is not operating correctly.
Also searched as: bank 2 sensor 2 heater circuit, downstream O2 heater fault bank 2
View causes and checks P0170 medium
Fuel Trim Malfunction (Bank 1)
The ECU sees a fuel-trim control problem on Bank 1 rather than a simple lean-only or rich-only correction pattern.
Also searched as: fuel trim malfunction bank 1, bank 1 fuel trim fault
View causes and checks P0171 medium
System Too Lean (Bank 1)
The ECU is adding fuel because Bank 1 is running lean beyond normal correction limits.
Also searched as: bank 1 too lean, lean condition bank 1
View causes and checks P0172 medium
System Too Rich (Bank 1)
The ECU is removing fuel because Bank 1 is richer than expected.
Also searched as: bank 1 too rich, rich condition bank 1
View causes and checks P0173 medium
Fuel Trim Malfunction (Bank 2)
The ECU sees a fuel-trim control problem on Bank 2 rather than a clean lean-only or rich-only pattern.
Also searched as: fuel trim malfunction bank 2, bank 2 fuel trim fault
View causes and checks P0174 medium
System Too Lean (Bank 2)
The ECU is adding fuel because Bank 2 is running lean beyond normal correction limits.
Also searched as: bank 2 too lean, lean condition bank 2
View causes and checks P0175 medium
System Too Rich (Bank 2)
The ECU is removing fuel because Bank 2 is richer than expected.
Also searched as: bank 2 too rich, rich condition bank 2
View causes and checks P0180 medium
Fuel Temperature Sensor A Circuit
The ECU sees a basic fault in the fuel-temperature sensor A circuit rather than a clean believable temperature signal.
Also searched as: fuel temperature sensor A circuit, fuel temp sensor circuit fault
View causes and checks P0181 medium
Fuel Temperature Sensor A Circuit Range/Performance
The fuel-temperature signal exists, but it does not behave in a believable range or pattern for real operating conditions.
Also searched as: fuel temperature sensor range performance, fuel temp sensor plausibility code
View causes and checks P0182 medium
Fuel Temperature Sensor A Circuit Low Input
The ECU sees the fuel-temperature signal staying lower than expected, which usually makes the fuel look hotter than reality.
Also searched as: fuel temperature sensor low input, P0182 low input
View causes and checks P0183 medium
Fuel Temperature Sensor A Circuit High Input
The ECU sees the fuel-temperature signal staying higher than expected, which usually makes the fuel look colder than reality.
Also searched as: fuel temperature sensor high input, P0183 high input
View causes and checks P0184 medium
Fuel Temperature Sensor A Circuit Intermittent
The fuel-temperature signal drops out or becomes unstable only part of the time.
Also searched as: fuel temperature sensor intermittent, P0184 intermittent code
View causes and checks P0190 high
Fuel Rail Pressure Sensor Circuit
The ECU sees a fault in the basic fuel rail pressure sensor circuit rather than a clean high/low/performance reading.
Also searched as: fuel rail pressure sensor circuit, P0190 FRP circuit code
View causes and checks P0191 high
Fuel Rail Pressure Sensor Range/Performance
The fuel rail pressure signal is present, but it does not behave in a believable range or pattern.
Also searched as: fuel rail pressure sensor range performance, P0191 fuel pressure sensor
View causes and checks P0192 high
Fuel Rail Pressure Sensor Circuit Low Input
The ECU sees the fuel rail pressure sensor signal staying lower than the expected electrical range.
Also searched as: fuel rail pressure sensor low input, P0192 low input
View causes and checks P0193 high
Fuel Rail Pressure Sensor Circuit High Input
The ECU sees the fuel rail pressure sensor signal staying higher than the expected electrical range.
Also searched as: fuel rail pressure sensor high input, P0193 high input
View causes and checks P0194 high
Fuel Rail Pressure Sensor Circuit Intermittent
The fuel rail pressure sensor signal drops out or becomes unstable only part of the time.
Also searched as: fuel rail pressure sensor intermittent, P0194 intermittent code
View causes and checks P0200 high
Injector Circuit Malfunction
The ECU detected a fault in the fuel-injector electrical circuit but did not isolate it to one cylinder.
Also searched as: injector circuit malfunction, fuel injector circuit code
View causes and checks P0201 high
Injector Circuit/Open - Cylinder 1
The ECU detected an electrical fault in the cylinder 1 injector circuit.
Also searched as: cylinder 1 injector circuit, injector 1 open circuit
View causes and checks P0202 high
Injector Circuit/Open - Cylinder 2
The ECU detected an electrical fault in the cylinder 2 injector circuit.
Also searched as: cylinder 2 injector circuit, injector 2 open circuit
View causes and checks P0203 high
Injector Circuit/Open - Cylinder 3
The ECU detected an electrical fault in the cylinder 3 injector circuit.
Also searched as: cylinder 3 injector circuit, injector 3 open circuit
View causes and checks P0204 high
Injector Circuit/Open - Cylinder 4
The ECU detected an electrical fault in the cylinder 4 injector circuit.
Also searched as: cylinder 4 injector circuit, injector 4 open circuit
View causes and checks P0205 high
Injector Circuit/Open - Cylinder 5
The ECU detected an electrical fault in the cylinder 5 injector circuit.
Also searched as: cylinder 5 injector circuit, injector 5 open circuit
View causes and checks P0206 high
Injector Circuit/Open - Cylinder 6
The ECU detected an electrical fault in the cylinder 6 injector circuit.
Also searched as: cylinder 6 injector circuit, injector 6 open circuit
View causes and checks P0207 high
Injector Circuit/Open - Cylinder 7
The ECU detected an electrical fault in the cylinder 7 injector circuit.
Also searched as: cylinder 7 injector circuit, injector 7 open circuit
View causes and checks P0208 high
Injector Circuit/Open - Cylinder 8
The ECU detected an electrical fault in the cylinder 8 injector circuit.
Also searched as: cylinder 8 injector circuit, injector 8 open circuit
View causes and checks P0217 high
Engine Coolant Overtemperature Condition
The PCM believes engine coolant temperature climbed into a true overheat range, not just a slow warm-up or mild cooling-performance complaint.
Also searched as: engine coolant overtemperature condition, engine overheat code
View causes and checks P0220 medium
Throttle/Pedal Position Sensor/Switch B Circuit
The companion throttle or pedal position circuit has an electrical fault, not just a performance drift.
Also searched as: throttle position sensor B circuit fault, TPS B circuit malfunction
View causes and checks P0221 medium
Throttle/Pedal Position Sensor/Switch B Circuit Range/Performance
The secondary throttle or pedal position signal is outside the range or movement pattern the ECU expects.
Also searched as: TPS B range performance, throttle position sensor B performance
View causes and checks P0222 medium
Throttle/Pedal Position Sensor/Switch B Circuit Low Input
The companion throttle or pedal position channel is reading too low for the ECU to trust it.
Also searched as: TPS B low input, throttle position sensor B low voltage
View causes and checks P0223 medium
Throttle/Pedal Position Sensor/Switch B Circuit High Input
The redundant throttle or pedal position signal is reading higher than the ECU expects.
Also searched as: TPS B high input, throttle position sensor B high voltage
View causes and checks P0224 medium
Throttle/Pedal Position Sensor/Switch B Circuit Intermittent
The redundant B-channel throttle or pedal position signal is dropping out or spiking intermittently.
Also searched as: TPS B intermittent, throttle position sensor B intermittent
View causes and checks P0225 medium
Throttle/Pedal Position Sensor/Switch C Circuit
A third throttle or pedal position channel is failing electrically, not just reading implausibly.
Also searched as: TPS C circuit fault, throttle position sensor C circuit malfunction
View causes and checks P0226 medium
Throttle/Pedal Position Sensor/Switch C Circuit Range/Performance
The C-channel throttle or pedal signal is present but no longer behaving within the range or pattern the ECU expects.
Also searched as: TPS C range performance, throttle position sensor C performance
View causes and checks P0227 medium
Throttle/Pedal Position Sensor/Switch C Circuit Low Input
The C-channel throttle or pedal signal is stuck lower than the ECU expects.
Also searched as: TPS C low input, throttle position sensor C low voltage
View causes and checks P0228 medium
Throttle/Pedal Position Sensor/Switch C Circuit High Input
The C-channel throttle or pedal signal is stuck higher than the ECU considers believable.
Also searched as: TPS C high input, throttle position sensor C high voltage
View causes and checks P0229 medium
Throttle/Pedal Position Sensor/Switch C Circuit Intermittent
The C-channel throttle or pedal signal drops out or spikes intermittently instead of failing in one steady direction.
Also searched as: TPS C intermittent, throttle position sensor C intermittent
View causes and checks P0230 high
Fuel Pump Primary Circuit
The ECU sees a fault in the main electrical circuit that powers or commands the fuel pump.
Also searched as: fuel pump primary circuit, P0230 fuel pump circuit
View causes and checks P0231 high
Fuel Pump Secondary Circuit Low
The fuel pump secondary circuit is being pulled low or cannot deliver normal voltage.
Also searched as: fuel pump secondary circuit low, P0231 low voltage fuel pump circuit
View causes and checks P0232 medium
Fuel Pump Secondary Circuit High
The ECU sees the fuel pump secondary circuit stuck high or higher than expected.
Also searched as: fuel pump secondary circuit high, P0232 fuel pump stuck on
View causes and checks P0233 high
Fuel Pump Secondary Circuit Intermittent
The ECU saw the fuel pump secondary circuit drop in and out instead of staying electrically stable.
Also searched as: fuel pump secondary circuit intermittent, intermittent fuel pump circuit
View causes and checks P0234 high
Turbocharger/Supercharger Overboost Condition
The ECU saw boost pressure rise higher than the safe target, so it flagged an overboost event.
Also searched as: overboost code, turbo overboost
View causes and checks P0236 medium
Turbocharger/Supercharger Boost Sensor A Range/Performance
The ECU does not trust the boost pressure signal because it no longer behaves the way expected under operating conditions.
Also searched as: boost sensor range performance, turbo boost sensor code
View causes and checks P0237 medium
Turbocharger/Supercharger Boost Sensor A Circuit Low
The boost pressure signal is lower than the ECU expects electrically, pointing toward circuit or sensor failure more than normal pressure behavior.
Also searched as: boost sensor circuit low, turbo boost sensor low voltage
View causes and checks P0238 medium
Turbocharger/Supercharger Boost Sensor A Circuit High
The boost pressure signal is electrically too high, suggesting a circuit or sensor problem or a reading that falsely mimics overboost.
Also searched as: boost sensor circuit high, turbo boost sensor high voltage
View causes and checks P023F high
Fuel Pump Secondary Circuit/Open
The secondary fuel-pump circuit is open or interrupted enough that commanded operation cannot be completed.
Also searched as: fuel pump secondary circuit open, P023F open fuel pump circuit
View causes and checks P025A high
Fuel Pump Module Control Circuit/Open
The ECU detected an open or general fault in the fuel pump module control circuit.
Also searched as: fuel pump module control circuit open, fuel pump control module circuit fault
View causes and checks P025B high
Fuel Pump Module Control Circuit Range/Performance
The ECU saw the fuel pump module control circuit respond outside its expected operating range.
Also searched as: fuel pump module control circuit performance, fuel pump module range performance
View causes and checks P025C high
Fuel Pump Module Control Circuit Low
The ECU detected the fuel pump module control circuit staying lower than expected.
Also searched as: fuel pump module control circuit low, low voltage fuel pump module code
View causes and checks P025D high
Fuel Pump Module Control Circuit High
The ECU detected the fuel pump module control circuit staying higher than expected.
Also searched as: fuel pump module control circuit high, fuel pump module high voltage code
View causes and checks P0299 medium
Turbocharger/Supercharger Underboost Condition
The engine is not making the boost pressure the ECU expected, so airflow and torque fall short under load.
Also searched as: underboost code, turbo underboost
View causes and checks P0300 high
Random/Multiple Cylinder Misfire Detected
The ECU detected misfire activity across multiple cylinders rather than one isolated cylinder.
Also searched as: random misfire, multiple cylinder misfire
View causes and checks P0301 high
Cylinder 1 Misfire Detected
The ECU detected misfire events concentrated in cylinder 1.
Also searched as: cylinder 1 misfire, misfire cylinder 1
View causes and checks P0302 high
Cylinder 2 Misfire Detected
The ECU detected misfire events concentrated in cylinder 2.
Also searched as: cylinder 2 misfire, misfire cylinder 2
View causes and checks P0303 high
Cylinder 3 Misfire Detected
Misfire was primarily detected on cylinder 3.
Also searched as: cylinder 3 misfire, misfire cylinder 3
View causes and checks P0304 high
Cylinder 4 Misfire Detected
Misfire was primarily detected on cylinder 4.
Also searched as: cylinder 4 misfire, misfire cylinder 4
View causes and checks P0305 high
Cylinder 5 Misfire Detected
The ECU detected misfire activity concentrated on cylinder 5.
Also searched as: cylinder 5 misfire, misfire cylinder 5
View causes and checks P0306 high
Cylinder 6 Misfire Detected
The ECU detected misfire activity concentrated on cylinder 6.
Also searched as: cylinder 6 misfire, misfire cylinder 6
View causes and checks P0307 high
Cylinder 7 Misfire Detected
The ECU detected misfire activity concentrated on cylinder 7.
Also searched as: cylinder 7 misfire, misfire cylinder 7
View causes and checks P0308 high
Cylinder 8 Misfire Detected
The ECU detected misfire activity concentrated on cylinder 8.
Also searched as: cylinder 8 misfire, misfire cylinder 8
View causes and checks P0309 high
Cylinder 9 Misfire Detected
The PCM detected a misfire event isolated strongly enough to identify cylinder 9.
Also searched as: cylinder 9 misfire detected, number 9 cylinder misfire
View causes and checks P0310 high
Cylinder 10 Misfire Detected
The PCM identified cylinder 10 as a repeat misfire source.
Also searched as: cylinder 10 misfire detected, number 10 cylinder misfire
View causes and checks P0316 high
Engine Misfire Detected on Startup (First 1000 Revolutions)
The PCM saw a misfire event during the first moments after startup, before the engine fully stabilized.
Also searched as: startup misfire detected, misfire detected on startup first 1000 revolutions
View causes and checks P0325 medium
Knock Sensor 1 Circuit (Bank 1 or Single Sensor)
The ECU sees a fault in the primary knock sensor circuit on bank 1 or on engines that use a single knock sensor.
Also searched as: knock sensor 1 circuit, bank 1 knock sensor code
View causes and checks P0326 medium
Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)
The knock sensor signal exists, but its behavior is outside the pattern the ECU expects.
Also searched as: knock sensor performance code, P0326 bank 1
View causes and checks P0327 medium
Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
The knock sensor 1 signal is too low for the ECU to trust.
Also searched as: knock sensor low input, P0327 bank 1
View causes and checks P0328 medium
Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
The knock sensor 1 signal is stuck high or too active for the ECU to consider believable.
Also searched as: knock sensor high input, P0328 bank 1
View causes and checks P0329 medium
Knock Sensor 1 Circuit Intermittent (Bank 1 or Single Sensor)
The knock sensor 1 signal drops out or behaves inconsistently only part of the time.
Also searched as: knock sensor intermittent, P0329 bank 1
View causes and checks P0330 medium
Knock Sensor 2 Circuit (Bank 2)
The ECU sees a fault in the knock sensor circuit for bank 2 on engines that use a second sensor.
Also searched as: knock sensor 2 circuit, bank 2 knock sensor code
View causes and checks P0331 medium
Knock Sensor 2 Circuit Range/Performance (Bank 2)
The bank 2 knock sensor signal is present, but it is not behaving within the expected range.
Also searched as: P0331 bank 2, bank 2 knock sensor performance
View causes and checks P0332 medium
Knock Sensor 2 Circuit Low Input (Bank 2)
The bank 2 knock sensor signal is too low for the ECU to trust.
Also searched as: P0332 bank 2, bank 2 knock sensor low input
View causes and checks P0333 medium
Knock Sensor 2 Circuit High Input (Bank 2)
The bank 2 knock sensor signal is too high or too active for the ECU to accept as normal.
Also searched as: P0333 bank 2, bank 2 knock sensor high input
View causes and checks P0334 medium
Knock Sensor 2 Circuit Intermittent (Bank 2)
The bank 2 knock sensor signal drops out or turns erratic only under certain conditions.
Also searched as: P0334 bank 2, intermittent bank 2 knock sensor
View causes and checks P0335 high
Crankshaft Position Sensor A Circuit
The ECU is not receiving a valid crankshaft position signal from the primary crank sensor circuit.
Also searched as: crankshaft position sensor circuit, bad crank sensor code
View causes and checks P0336 high
Crankshaft Position Sensor A Circuit Range/Performance
The ECU is receiving a crankshaft signal, but its pattern or timing is not believable enough to trust.
Also searched as: crank sensor range performance, erratic crank signal code
View causes and checks P0337 high
Crankshaft Position Sensor A Circuit Low Input
The ECU sees the primary crankshaft position signal voltage or amplitude too low to trust.
Also searched as: crank sensor low input, crankshaft position sensor low voltage
View causes and checks P0338 high
Crankshaft Position Sensor A Circuit High Input
The ECU sees the crankshaft position sensor circuit voltage or signal level higher than expected.
Also searched as: crank sensor high input, crankshaft position sensor high voltage
View causes and checks P0339 high
Crankshaft Position Sensor A Circuit Intermittent
The ECU sees the primary crankshaft position signal cutting in and out intermittently.
Also searched as: intermittent crank sensor code, crankshaft position sensor intermittent
View causes and checks P0340 high
Camshaft Position Sensor Circuit
The ECU sees a problem with the camshaft position sensor circuit or signal quality.
Also searched as: camshaft position sensor circuit, bad cam sensor code
View causes and checks P0341 high
Camshaft Position Sensor Circuit Range/Performance
The camshaft position signal is present, but its pattern or timing is not believable enough for the ECU to trust.
Also searched as: cam sensor range performance, camshaft sensor performance code
View causes and checks P0342 high
Camshaft Position Sensor Circuit Low Input
The ECU sees the camshaft position sensor signal voltage or amplitude too low to trust.
Also searched as: cam sensor low input, camshaft position sensor low voltage
View causes and checks P0343 high
Camshaft Position Sensor Circuit High Input
The ECU sees the camshaft position sensor circuit voltage or signal level higher than expected.
Also searched as: cam sensor high input, camshaft position sensor high voltage
View causes and checks P0344 high
Camshaft Position Sensor Circuit Intermittent
The ECU sees the camshaft position sensor signal dropping in and out intermittently.
Also searched as: intermittent cam sensor code, camshaft position sensor intermittent
View causes and checks P0345 high
Camshaft Position Sensor A Circuit (Bank 2)
The ECU sees a fault in the Bank 2 camshaft position sensor A circuit or its signal quality.
Also searched as: bank 2 camshaft position sensor A circuit, bank 2 cam sensor code
View causes and checks P0346 high
Camshaft Position Sensor A Circuit Range/Performance (Bank 2)
The Bank 2 camshaft position sensor A signal exists, but its pattern or timing is not believable enough to trust.
Also searched as: bank 2 cam sensor range performance, P0346 bank 2 cam performance
View causes and checks P0347 high
Camshaft Position Sensor A Circuit Low Input (Bank 2)
The ECU sees the Bank 2 camshaft position sensor A signal too low or too weak to trust.
Also searched as: bank 2 cam sensor low input, bank 2 camshaft sensor low voltage
View causes and checks P0348 high
Camshaft Position Sensor A Circuit High Input (Bank 2)
The ECU sees the Bank 2 camshaft position sensor A circuit voltage or signal level too high.
Also searched as: bank 2 cam sensor high input, bank 2 camshaft sensor high voltage
View causes and checks P0349 high
Camshaft Position Sensor A Circuit Intermittent (Bank 2)
The ECU sees the Bank 2 camshaft position sensor A signal dropping in and out intermittently.
Also searched as: intermittent bank 2 cam sensor code, bank 2 camshaft position sensor intermittent
View causes and checks P0350 high
Ignition Coil Primary/Secondary Circuit
The ECU detected a fault in the ignition-coil primary or secondary control circuit without isolating it to one cylinder.
Also searched as: ignition coil circuit fault, coil primary secondary circuit code
View causes and checks P0351 high
Ignition Coil A Primary/Secondary Circuit
The ECU detected an ignition-coil circuit fault on coil A, commonly cylinder 1 on many engines.
Also searched as: coil A circuit fault, P0351 ignition coil A
View causes and checks P0352 high
Ignition Coil B Primary/Secondary Circuit
The ECU detected an ignition-coil circuit fault on coil B, commonly cylinder 2 on many engines.
Also searched as: coil B circuit fault, P0352 ignition coil B
View causes and checks P0353 high
Ignition Coil C Primary/Secondary Circuit
The ECU detected an ignition-coil circuit fault on coil C, commonly cylinder 3 on many engines.
Also searched as: coil C circuit fault, P0353 ignition coil C
View causes and checks P0354 high
Ignition Coil D Primary/Secondary Circuit
The ECU detected an ignition-coil circuit fault on coil D, commonly cylinder 4 on many engines.
Also searched as: coil D circuit fault, P0354 ignition coil D
View causes and checks P0355 high
Ignition Coil E Primary/Secondary Circuit
The ECU detected an ignition-coil circuit fault on coil E, commonly used on five- and six-cylinder engines.
Also searched as: coil E circuit fault, P0355 ignition coil E
View causes and checks P0356 high
Ignition Coil F Primary/Secondary Circuit
The ECU detected an ignition-coil circuit fault on coil F, commonly used on six-cylinder engines.
Also searched as: coil F circuit fault, P0356 ignition coil F
View causes and checks P0365 high
Camshaft Position Sensor B Circuit (Bank 1)
The ECU sees a fault in the Bank 1 camshaft position sensor B circuit or its signal quality.
Also searched as: bank 1 camshaft position sensor B circuit, bank 1 exhaust cam sensor code
View causes and checks P0366 high
Camshaft Position Sensor B Circuit Range/Performance (Bank 1)
The Bank 1 camshaft position sensor B signal exists, but its pattern or timing is not believable enough to trust.
Also searched as: bank 1 cam sensor B range performance, P0366 bank 1 exhaust cam performance
View causes and checks P0367 high
Camshaft Position Sensor B Circuit Low Input (Bank 1)
The ECU sees the Bank 1 camshaft position sensor B signal too low or too weak to trust.
Also searched as: bank 1 cam sensor B low input, bank 1 exhaust cam sensor low voltage
View causes and checks P0368 high
Camshaft Position Sensor B Circuit High Input (Bank 1)
The ECU sees the Bank 1 camshaft position sensor B circuit voltage or signal level higher than expected.
Also searched as: bank 1 cam sensor B high input, bank 1 exhaust cam sensor high voltage
View causes and checks P0369 high
Camshaft Position Sensor B Circuit Intermittent (Bank 1)
The ECU sees the Bank 1 camshaft position sensor B signal dropping in and out intermittently.
Also searched as: intermittent bank 1 cam sensor B code, bank 1 exhaust cam sensor intermittent
View causes and checks P0380 medium
Glow Plug/Heater Circuit A Malfunction
The ECU detected a fault in the main glow plug or intake-heater control circuit used for cold-start assistance.
Also searched as: glow plug circuit malfunction, heater circuit a malfunction
View causes and checks P0390 high
Camshaft Position Sensor B Circuit (Bank 2)
The ECU sees a fault in the Bank 2 camshaft position sensor B circuit or its signal quality.
Also searched as: bank 2 camshaft position sensor B circuit, bank 2 exhaust cam sensor code
View causes and checks P0391 high
Camshaft Position Sensor B Circuit Range/Performance (Bank 2)
The Bank 2 camshaft position sensor B signal exists, but its pattern or timing is not believable enough to trust.
Also searched as: bank 2 cam sensor B range performance, P0391 bank 2 exhaust cam performance
View causes and checks P0392 high
Camshaft Position Sensor B Circuit Low Input (Bank 2)
The ECU sees the Bank 2 camshaft position sensor B signal too low or too weak to trust.
Also searched as: bank 2 cam sensor B low input, bank 2 exhaust cam sensor low voltage
View causes and checks P0393 high
Camshaft Position Sensor B Circuit High Input (Bank 2)
The ECU sees the Bank 2 camshaft position sensor B circuit voltage or signal level higher than expected.
Also searched as: bank 2 cam sensor B high input, bank 2 exhaust cam sensor high voltage
View causes and checks P0394 high
Camshaft Position Sensor B Circuit Intermittent (Bank 2)
The ECU sees the Bank 2 camshaft position sensor B signal dropping in and out intermittently.
Also searched as: intermittent bank 2 cam sensor B code, bank 2 exhaust cam sensor intermittent
View causes and checks P0400 medium
Exhaust Gas Recirculation Flow Malfunction
The ECU sees an EGR-system flow problem but not yet a clearly defined insufficient-flow, excessive-flow, or sensor-bias branch.
Also searched as: EGR flow malfunction, exhaust gas recirculation malfunction
View causes and checks P0401 medium
Exhaust Gas Recirculation Flow Insufficient Detected
The ECU commanded EGR flow but did not see the expected response.
Also searched as: insufficient EGR flow, EGR flow insufficient code
View causes and checks P0402 medium
Exhaust Gas Recirculation Flow Excessive Detected
The ECU believes too much exhaust gas is entering the intake, often because the EGR valve is leaking or hanging open when it should not.
Also searched as: EGR excessive flow, too much EGR flow
View causes and checks P0403 medium
Exhaust Gas Recirculation Circuit Malfunction
The ECU sees an electrical or control-circuit fault in the EGR system rather than only a pure flow problem.
Also searched as: EGR circuit malfunction, EGR control circuit fault
View causes and checks P0404 medium
Exhaust Gas Recirculation Circuit Range/Performance
The EGR command and feedback do not agree closely enough, even if the circuit is not fully open or shorted.
Also searched as: EGR range performance, EGR performance code
View causes and checks P0405 medium
Exhaust Gas Recirculation Sensor A Circuit Low
The EGR position or feedback signal is stuck lower than the ECU expects, often because of a sensor, reference, ground, or wiring fault.
Also searched as: EGR sensor low, EGR position sensor low voltage
View causes and checks P0406 medium
Exhaust Gas Recirculation Sensor A Circuit High
The EGR feedback signal is reading higher than expected, often because of a biased sensor, signal short to voltage, or valve-position reporting fault.
Also searched as: EGR sensor high, EGR position sensor high voltage
View causes and checks P0407 medium
Exhaust Gas Recirculation Sensor B Circuit Low
The ECU sees the EGR Sensor B feedback signal stuck lower than expected, pointing toward a low-voltage feedback or reference issue rather than a pure flow complaint.
Also searched as: EGR sensor B low, EGR feedback B low voltage
View causes and checks P0408 medium
Exhaust Gas Recirculation Sensor B Circuit High
The EGR Sensor B feedback signal is reading higher than the ECU expects, usually because the signal is biased high or the valve-position story no longer adds up.
Also searched as: EGR sensor B high, EGR feedback B high voltage
View causes and checks P0409 medium
Exhaust Gas Recirculation Sensor B Circuit Malfunction
The ECU sees Sensor B behaving irrationally enough to call it a general circuit fault instead of only a low- or high-voltage condition.
Also searched as: EGR sensor B malfunction, EGR feedback B circuit fault
View causes and checks P040A medium
Exhaust Gas Recirculation Temperature Sensor A Circuit
The ECU sees the EGR temperature sensor A circuit behaving incorrectly, so it can no longer trust exhaust-gas temperature feedback for that branch of the EGR system.
Also searched as: EGR temp sensor A circuit fault, EGR temperature sensor A malfunction
View causes and checks P040B medium
Exhaust Gas Recirculation Temperature Sensor A Circuit Range / Performance
The EGR temperature sensor A signal is alive but not behaving the way the ECU expects during real operating changes, so the issue is more about plausibility or response than a hard open/short.
Also searched as: EGR temp sensor A range performance, P040B EGR temperature sensor A performance
View causes and checks P040C medium
Exhaust Gas Recirculation Temperature Sensor A Circuit Low
The EGR temperature sensor A circuit is reading lower than expected, usually because the signal is shorted low, the circuit is open in a way that drags the reading down, or the sensor is biased cold.
Also searched as: EGR temp sensor A low, P040C low EGR temperature sensor signal
View causes and checks P040D medium
Exhaust Gas Recirculation Temperature Sensor A Circuit High
The EGR temperature sensor A signal is reading higher than expected, usually because the circuit is shorted high, the ground is compromised, or the sensor is biased hot.
Also searched as: EGR temp sensor A high, P040D high EGR temperature signal
View causes and checks P040E medium
Exhaust Gas Recirculation Temperature Sensor B Circuit
The ECU detected a basic electrical fault in EGR temperature sensor B or its circuit.
Also searched as: EGR temp sensor B circuit, P040E EGR temperature sensor B
View causes and checks P040F medium
Exhaust Gas Recirculation Temperature Sensor A/B Correlation
The ECU sees EGR temperature sensors A and B disagreeing beyond the allowed range.
Also searched as: EGR temp sensor correlation, P040F sensor A B correlation
View causes and checks P0410 medium
Secondary Air Injection System Malfunction
The ECU no longer trusts the secondary air injection system to provide the cold-start airflow it expects.
Also searched as: secondary air injection malfunction, secondary air system fault
View causes and checks P0411 medium
Secondary Air Injection System Incorrect Flow Detected
The secondary air system ran, but the ECU did not see the amount of fresh-air flow it expected.
Also searched as: secondary air incorrect flow, secondary air flow fault
View causes and checks P0412 medium
Secondary Air Injection System Switching Valve A Circuit Malfunction
The ECU detected an electrical problem in the Secondary Air Injection switching valve A control circuit.
Also searched as: secondary air switching valve A circuit malfunction, P0412 valve A circuit
View causes and checks P0413 medium
Secondary Air Injection System Switching Valve A Circuit Open
The valve A control circuit looks electrically open, so the ECU cannot operate the switching valve.
Also searched as: secondary air valve A circuit open, P0413 valve A open
View causes and checks P0414 medium
Secondary Air Injection System Switching Valve A Circuit Shorted
The valve A control circuit is shorted, overloaded, or electrically pulled to the wrong state.
Also searched as: secondary air valve A shorted, P0414 valve A circuit short
View causes and checks P0415 medium
Secondary Air Injection System Switching Valve B Circuit Malfunction
The ECU detected an electrical fault in the secondary air injection switching valve B circuit.
Also searched as: secondary air valve B circuit malfunction, P0415 switching valve B
View causes and checks P0416 medium
Secondary Air Injection System Switching Valve B Circuit Open
The control path to switching valve B is open, so the ECU cannot operate it reliably.
Also searched as: secondary air valve B open circuit, P0416 valve B open
View causes and checks P0417 medium
Secondary Air Injection System Switching Valve B Circuit Shorted
The switching valve B circuit is shorted or overcurrent, disabling reliable secondary-air control.
Also searched as: secondary air valve B shorted, P0417 valve B circuit short
View causes and checks P0418 medium
Secondary Air Injection System Relay A Circuit Malfunction
The ECU detected a fault in relay A control for the secondary air injection system.
Also searched as: secondary air relay A circuit malfunction, P0418 relay A fault
View causes and checks P0419 medium
Secondary Air Injection System Relay B Circuit Malfunction
The ECU detected a fault in the secondary air injection relay B control path.
Also searched as: secondary air relay B circuit malfunction, P0419 relay B fault
View causes and checks P041A medium
Exhaust Gas Recirculation Temperature Sensor B Circuit Range/Performance
The EGR temperature sensor B circuit is active but the signal behaves outside the expected range or response pattern.
Also searched as: EGR temp sensor B range performance, P041A sensor B performance
View causes and checks P041B medium
Exhaust Gas Recirculation Temperature Sensor B Circuit Low
The EGR temperature sensor B signal is reading lower than expected, usually because of a short to ground, signal loss, or a sensor biased cold.
Also searched as: EGR temp sensor B low, P041B low input
View causes and checks P041C medium
Exhaust Gas Recirculation Temperature Sensor B Circuit High
The EGR temperature sensor B signal is reading higher than expected, usually because of a short to voltage, ground fault, or sensor biased hot.
Also searched as: EGR temp sensor B high, P041C high input
View causes and checks P041D medium
Exhaust Gas Recirculation Temperature Sensor B Circuit Intermittent
The EGR temperature sensor B signal drops in and out or becomes unstable enough for the ECU to flag an intermittent fault.
Also searched as: EGR temp sensor B intermittent, P041D intermittent sensor B
View causes and checks P0420 medium
Catalyst System Efficiency Below Threshold (Bank 1)
Catalyst monitoring suggests Bank 1 converter performance is below expected threshold.
Also searched as: catalyst efficiency bank 1, bank 1 catalyst below threshold
View causes and checks P0421 medium
Warm Up Catalyst Efficiency Below Threshold (Bank 1)
The Bank 1 catalyst is not reaching expected efficiency quickly enough during warm-up monitoring.
Also searched as: warm up catalyst efficiency bank 1, bank 1 catalyst warmup below threshold
View causes and checks P0422 medium
Main Catalyst Efficiency Below Threshold (Bank 1)
The ECU thinks the main Bank 1 catalyst is no longer cleaning exhaust efficiently enough under normal monitoring conditions.
Also searched as: main catalyst efficiency bank 1, bank 1 main catalyst below threshold
View causes and checks P0423 medium
Heated Catalyst Efficiency Below Threshold (Bank 1)
The heated catalyst on Bank 1 is not reaching or maintaining the emissions-cleaning efficiency the ECU expects.
Also searched as: heated catalyst efficiency bank 1, bank 1 heated catalyst below threshold
View causes and checks P0424 medium
Heated Catalyst Temperature Below Threshold (Bank 1)
The ECU thinks the Bank 1 heated catalyst is not reaching the temperature or activity level it should during monitoring.
Also searched as: heated catalyst temperature below threshold bank 1, bank 1 catalyst not heating up
View causes and checks P0430 medium
Catalyst System Efficiency Below Threshold (Bank 2)
Catalyst monitoring suggests Bank 2 converter performance is below expected threshold.
Also searched as: catalyst efficiency bank 2, bank 2 catalyst below threshold
View causes and checks P0431 medium
Warm Up Catalyst Efficiency Below Threshold (Bank 2)
The Bank 2 catalyst is not reaching expected warm-up efficiency quickly enough during early monitor conditions.
Also searched as: warm up catalyst efficiency bank 2, bank 2 catalyst warmup below threshold
View causes and checks P0432 medium
Main Catalyst Efficiency Below Threshold (Bank 2)
The ECU thinks the main Bank 2 catalyst is no longer cleaning exhaust efficiently enough.
Also searched as: main catalyst efficiency bank 2, bank 2 main catalyst below threshold
View causes and checks P0433 medium
Heated Catalyst Efficiency Below Threshold (Bank 2)
The heated catalyst on Bank 2 is not reaching or maintaining the efficiency the ECU expects.
Also searched as: heated catalyst efficiency bank 2, bank 2 heated catalyst below threshold
View causes and checks P0434 medium
Heated Catalyst Temperature Below Threshold (Bank 2)
The ECU thinks the Bank 2 heated catalyst is not reaching the temperature or activity it should during monitoring.
Also searched as: heated catalyst temperature below threshold bank 2, bank 2 catalyst not heating up
View causes and checks P0440 low
Evaporative Emission Control System Malfunction
The ECU detected a general EVAP system fault but not a leak size or pressure-sensor direction specific enough to use a narrower code.
Also searched as: general EVAP fault, EVAP system malfunction
View causes and checks P0441 low
Evaporative Emission Control System Incorrect Purge Flow
The ECU commanded EVAP purge behavior that did not match the flow response it expected.
Also searched as: incorrect purge flow, EVAP purge flow fault
View causes and checks P0442 low
EVAP System Leak Detected (Small Leak)
The EVAP monitor found a small leak in the fuel vapor containment system.
Also searched as: small EVAP leak, evap small leak code
View causes and checks P0443 medium
Evaporative Emission Control System Purge Control Valve Circuit
The ECU sees an electrical fault in the EVAP purge valve control circuit rather than just incorrect purge flow.
Also searched as: EVAP purge control valve circuit, purge solenoid circuit fault
View causes and checks P0444 medium
Evaporative Emission Control System Purge Control Valve Circuit Open
The ECU sees the EVAP purge-valve circuit open or disconnected, so it cannot control purge the way it expects.
Also searched as: EVAP purge valve circuit open, purge solenoid open circuit
View causes and checks P0445 medium
Evaporative Emission Control System Purge Control Valve Circuit Shorted
The ECU sees the EVAP purge-valve circuit shorted or pulled electrically where it should not be.
Also searched as: EVAP purge valve circuit shorted, purge solenoid short circuit
View causes and checks P0446 low
Evaporative Emission Control System Vent Control Circuit
The EVAP vent control circuit or vent valve behavior is not working the way the ECU expects.
Also searched as: EVAP vent control fault, vent valve circuit code
View causes and checks P0447 medium
Evaporative Emission Control System Vent Control Circuit Open
The ECU sees the EVAP vent valve circuit electrically open or unable to complete the expected control path.
Also searched as: EVAP vent circuit open, vent valve open circuit code
View causes and checks P0448 medium
Evaporative Emission Control System Vent Control Circuit Shorted
The EVAP vent valve circuit is shorted or electrically pulled the wrong way rather than simply open.
Also searched as: EVAP vent circuit shorted, vent valve short circuit code
View causes and checks P0449 medium
Evaporative Emission Control System Vent Valve/Solenoid Circuit
The ECU sees an electrical problem in the EVAP vent-valve control circuit rather than only a generic vent-performance fault.
Also searched as: EVAP vent valve circuit code, vent solenoid circuit fault
View causes and checks P0450 medium
Evaporative Emission Control System Pressure Sensor/Switch
The ECU sees a basic fault with the EVAP pressure sensor signal or switch circuit before it narrows the problem to low, high, or range/performance.
Also searched as: EVAP pressure sensor code, fuel tank pressure sensor switch fault
View causes and checks P0451 medium
Evaporative Emission Control System Pressure Sensor Range/Performance
The fuel tank pressure signal is present, but it does not change in the believable way the ECU expects during EVAP testing.
Also searched as: fuel tank pressure sensor range performance, EVAP pressure sensor performance code
View causes and checks P0452 medium
Evaporative Emission Control System Pressure Sensor Low Input
The fuel tank pressure signal is stuck too low or lower than the ECU considers believable.
Also searched as: fuel tank pressure sensor low input, EVAP pressure sensor low voltage
View causes and checks P0453 medium
Evaporative Emission Control System Pressure Sensor High Input
The fuel tank pressure signal is stuck too high or higher than the ECU expects for actual EVAP conditions.
Also searched as: fuel tank pressure sensor high input, EVAP pressure sensor high voltage
View causes and checks P0454 medium
Evaporative Emission Control System Pressure Sensor/Switch Intermittent
The EVAP pressure-sensor signal drops in and out or becomes unstable instead of staying consistently low, high, or rational.
Also searched as: EVAP pressure sensor intermittent, fuel tank pressure sensor intermittent fault
View causes and checks P0455 low
EVAP System Leak Detected (Large Leak)
The EVAP monitor found a large leak or a system unable to hold pressure or vacuum.
Also searched as: large EVAP leak, evap large leak code
View causes and checks P0456 low
EVAP System Leak Detected (Very Small Leak)
The EVAP monitor found a very small leak in the vapor system.
Also searched as: very small EVAP leak, tiny evap leak
View causes and checks P0457 low
Evaporative Emission Control System Leak Detected (Fuel Cap Loose/Off)
The EVAP system saw a large leak pattern that often fits a loose, missing, or poorly sealing fuel cap.
Also searched as: loose gas cap code, fuel cap loose or off
View causes and checks P0458 medium
Evaporative Emission Control System Purge Control Valve Circuit Low
The ECU sees the purge-control circuit voltage pulled lower than expected, pointing toward a low-input or short-to-ground style fault.
Also searched as: purge valve circuit low, EVAP purge control low input
View causes and checks P0459 medium
Evaporative Emission Control System Purge Control Valve Circuit High
The ECU sees the purge-control circuit voltage staying higher than expected, pointing toward an open, short-to-voltage, or unloaded-high condition.
Also searched as: purge valve circuit high, EVAP purge control high input
View causes and checks P0460 low
Fuel Level Sensor A Circuit Malfunction
The ECU detected a general fault in the fuel level sender circuit without narrowing it to a simple high or low bias.
Also searched as: fuel level sensor circuit malfunction, general fuel sender code
View causes and checks P0461 low
Fuel Level Sensor A Circuit Range/Performance
The ECU sees the fuel level sender signal moving in a way that does not make sense for actual tank level changes.
Also searched as: fuel level sensor range performance, fuel gauge inaccurate code
View causes and checks P0462 low
Fuel Level Sensor A Circuit Low Input
The ECU sees the fuel level sender signal lower than expected, often making the system think the tank is emptier than it really is.
Also searched as: fuel level sensor low input, fuel gauge stuck empty
View causes and checks P0463 low
Fuel Level Sensor A Circuit High Input
The ECU sees the fuel level sender signal higher than expected, often making the tank look fuller than it really is.
Also searched as: fuel level sensor high input, fuel gauge stuck full
View causes and checks P0480 high
Cooling Fan 1 Control Circuit Malfunction
The ECU detected a fault in the primary electric cooling-fan control circuit.
Also searched as: cooling fan 1 control circuit malfunction, radiator fan control code
View causes and checks P0481 high
Cooling Fan 2 Control Circuit Malfunction
The ECU detected a fault in the secondary cooling-fan control circuit.
Also searched as: cooling fan 2 control circuit malfunction, secondary radiator fan code
View causes and checks P0482 high
Cooling Fan 3 Control Circuit Malfunction
The ECU detected a fault in the third cooling-fan control path or an additional staged fan circuit.
Also searched as: cooling fan 3 control circuit malfunction, third cooling fan circuit fault
View causes and checks P0483 high
Cooling Fan Rationality Check Malfunction
The ECU commanded cooling-fan operation but the measured response did not make sense.
Also searched as: cooling fan rationality check malfunction, fan response implausible
View causes and checks P0484 high
Cooling Fan Circuit Over Current
The ECU detected excessive current draw in the cooling-fan circuit.
Also searched as: cooling fan circuit over current, radiator fan drawing too much current
View causes and checks P0485 high
Cooling Fan Power/Ground Circuit Malfunction
The ECU detected a fault in the cooling-fan power or ground supply path.
Also searched as: cooling fan power ground circuit malfunction, radiator fan power supply fault
View causes and checks P0487 medium
Exhaust Gas Recirculation Throttle Control Circuit A / Open
The ECU sees the EGR throttle-control circuit open or not responding electrically when it tries to command airflow for EGR operation.
Also searched as: EGR throttle control circuit open, EGR throttle actuator open circuit
View causes and checks P0488 medium
Exhaust Gas Recirculation Throttle Control Range / Performance
The EGR throttle-control actuator moves or reports movement, but not closely enough to the ECU command to satisfy the monitor.
Also searched as: EGR throttle performance, EGR throttle control range performance
View causes and checks P0489 medium
Exhaust Gas Recirculation Throttle Control Circuit Low
The ECU sees the EGR throttle-control circuit pulled lower than expected, pointing toward a low command or feedback voltage problem.
Also searched as: EGR throttle control low, intake flap circuit low
View causes and checks P0490 medium
Exhaust Gas Recirculation Control Circuit High
The PCM sees the EGR control side stuck too high or otherwise out of normal electrical range.
Also searched as: EGR control circuit high, exhaust gas recirculation circuit high
View causes and checks P0491 medium
Secondary Air Injection System Insufficient Flow Bank 1
The PCM commanded secondary air on but did not see the expected exhaust-side response on bank 1.
Also searched as: secondary air injection insufficient flow bank 1, secondary air bank 1 insufficient flow
View causes and checks P0492 medium
Secondary Air Injection System Insufficient Flow Bank 2
The PCM commanded secondary air on but did not see the expected response on bank 2.
Also searched as: secondary air injection insufficient flow bank 2, secondary air bank 2 insufficient flow
View causes and checks P0496 medium
Evaporative Emission System High Purge Flow
The engine is seeing too much EVAP purge flow when the system should be flowing little or none.
Also searched as: high purge flow, EVAP purge valve stuck open code
View causes and checks P0497 low
Evaporative Emission System Low Purge Flow
The ECU commanded EVAP purge, but the system showed too little vapor flow or not enough pressure response.
Also searched as: EVAP low purge flow, purge flow too low
View causes and checks P0498 medium
Evaporative Emission System Vent Valve Control Circuit Low
The ECU sees the EVAP vent-valve control circuit pulled low or below the expected electrical range.
Also searched as: EVAP vent valve circuit low, vent control circuit low
View causes and checks P0499 medium
Evaporative Emission System Vent Valve Control Circuit High
The ECU sees the EVAP vent-valve control circuit biased high or electrically higher than it should be.
Also searched as: EVAP vent valve circuit high, vent control circuit high
View causes and checks P0500 high
Vehicle Speed Sensor A Malfunction
The ECU is not receiving a believable primary vehicle-speed signal.
Also searched as: vehicle speed sensor malfunction, VSS code
View causes and checks P0501 high
Vehicle Speed Sensor A Range/Performance
The primary vehicle-speed signal is present, but it does not behave plausibly.
Also searched as: vehicle speed sensor range performance, VSS implausible signal
View causes and checks P0502 high
Vehicle Speed Sensor A Low Input
The vehicle-speed signal is staying lower than the module expects.
Also searched as: vehicle speed sensor low input, VSS signal low
View causes and checks P0503 high
Vehicle Speed Sensor A Intermittent/Erratic/High
The primary vehicle-speed signal is jumping, dropping out, or spiking implausibly.
Also searched as: vehicle speed sensor intermittent, erratic vehicle speed signal
View causes and checks P0504 medium
Brake Switch A/B Correlation
The PCM sees the two brake-pedal switch signals disagreeing or transitioning in an implausible way.
Also searched as: brake switch a b correlation, brake pedal switch correlation
View causes and checks P0505 medium
Idle Control System Malfunction
The ECU sees the idle-speed control strategy failing in a broad way instead of only idling too high or too low.
Also searched as: idle control system malfunction, idle air control malfunction
View causes and checks P0506 medium
Idle Control System RPM Lower Than Expected
The engine is idling below target and the ECU cannot raise idle speed the way it should.
Also searched as: idle too low code, low idle control code
View causes and checks P0507 medium
Idle Control System RPM Higher Than Expected
The engine is idling higher than the ECU intends and the idle-control strategy cannot bring it back down normally.
Also searched as: idle too high code, high idle control code
View causes and checks P0508 medium
Idle Air Control System Circuit Low
The PCM sees the idle air control circuit or commanded idle air path pulled lower than expected.
Also searched as: idle air control circuit low, IAC circuit low
View causes and checks P0509 medium
Idle Air Control System Circuit High
The PCM sees the idle air control circuit or response stuck higher than the normal range.
Also searched as: idle air control circuit high, IAC circuit high
View causes and checks P0511 medium
Idle Air Control Circuit Malfunction
The ECU sees an electrical or command problem in the idle air control circuit rather than only a simple idle-speed error.
Also searched as: idle air control circuit malfunction, IAC circuit fault
View causes and checks P0512 high
Starter Request Circuit
The PCM detected a fault in the starter request input circuit.
Also searched as: starter request circuit fault, start request signal code
View causes and checks P0513 medium
Incorrect Immobilizer Key
The PCM or immobilizer system does not trust the transponder key or key authentication signal.
Also searched as: incorrect immobilizer key, wrong transponder key detected
View causes and checks P0519 medium
Idle Air Control System Performance
The ECU sees the idle-air-control system responding, but not performing the way it should under real operating conditions.
Also searched as: idle air control system performance, IAC performance code
View causes and checks P051B medium
Crankcase Pressure Sensor Circuit Range/Performance
The PCM decided the crankcase pressure signal is still moving, but not in a believable way for current engine conditions.
Also searched as: crankcase pressure sensor range performance, PCV pressure sensor code
View causes and checks P0520 high
Engine Oil Pressure Sensor/Switch Circuit
The control module detected a general fault in the engine oil pressure sensor or switch circuit.
Also searched as: engine oil pressure sensor circuit, oil pressure switch circuit fault
View causes and checks P0521 high
Engine Oil Pressure Sensor/Switch Range/Performance
The module sees the oil pressure sensor or switch signal behaving outside the expected range or response pattern.
Also searched as: oil pressure sensor range performance, engine oil pressure sender range code
View causes and checks P0522 high
Engine Oil Pressure Sensor/Switch Low Voltage
The oil pressure sensor or switch signal is reading lower than expected.
Also searched as: oil pressure sensor low voltage, engine oil pressure switch low input
View causes and checks P0523 medium
Engine Oil Pressure Sensor/Switch High Voltage
The oil pressure sensor or switch signal is reading higher than expected.
Also searched as: oil pressure sensor high voltage, engine oil pressure switch high input
View causes and checks P0524 high
Engine Oil Pressure Too Low
The control module believes actual engine oil pressure is below the minimum safe threshold.
Also searched as: engine oil pressure too low, low engine oil pressure code
View causes and checks P052B medium
Cold Start A Camshaft Position Timing Over-Retarded Bank 1
During cold start, the PCM saw bank 1 intake cam timing lag behind where VVT control said it should be.
Also searched as: cold start cam timing over retarded bank 1, P052B intake cam timing cold start
View causes and checks P052C medium
Cold Start A Camshaft Position Timing Over-Advanced Bank 1
During cold start, the PCM saw bank 1 intake cam timing stay more advanced than commanded.
Also searched as: cold start cam timing over advanced bank 1, P052C intake cam timing cold start
View causes and checks P0556 high
Brake Booster Pressure Sensor Circuit Range/Performance
The PCM sees a brake-booster pressure or vacuum signal that exists but does not behave plausibly.
Also searched as: brake booster pressure sensor circuit range performance, brake booster pressure sensor performance
View causes and checks P0557 high
Brake Booster Pressure Sensor Circuit Low
The PCM sees the brake-booster pressure sensor signal lower than the expected range.
Also searched as: brake booster pressure sensor circuit low, brake booster sensor low input
View causes and checks P0558 high
Brake Booster Pressure Sensor Circuit High
The PCM sees the brake booster pressure sensor signal stuck higher than it should be.
Also searched as: brake booster pressure sensor circuit high, brake booster pressure high input
View causes and checks P0559 high
Brake Booster Pressure Sensor Circuit Intermittent
The brake booster pressure sensor signal is dropping in and out or behaving inconsistently.
Also searched as: brake booster pressure sensor intermittent, intermittent brake booster pressure code
View causes and checks P0560 medium
System Voltage Malfunction
The ECU detected system voltage outside the range it expects for normal module and charging-system operation.
Also searched as: system voltage malfunction, charging system voltage code
View causes and checks P0562 high
System Voltage Low
The ECU detected system voltage staying below the minimum threshold it needs for reliable operation.
Also searched as: system voltage low, low system voltage
View causes and checks P0563 high
System Voltage High
The ECU detected charging-system voltage rising higher than the safe range for normal vehicle electronics.
Also searched as: system voltage high, overcharging code
View causes and checks P0571 medium
Brake Switch A Circuit
The PCM sees an invalid or inconsistent signal on the primary brake-switch circuit.
Also searched as: brake switch a circuit, brake pedal switch a circuit
View causes and checks P0572 medium
Brake Switch A Circuit Low
The PCM sees the brake-switch A signal lower than the expected range.
Also searched as: brake switch a circuit low, brake pedal switch low input
View causes and checks P0573 medium
Brake Switch A Circuit High
The PCM sees the brake-switch A signal higher than the expected range or stuck in the applied direction.
Also searched as: brake switch a circuit high, brake pedal switch high input
View causes and checks P0600 medium
Serial Communication Link Malfunction
The powertrain controller sees a communication failure on a serial link it expects to use reliably.
Also searched as: serial communication malfunction, PCM communication link fault
View causes and checks P0601 high
Internal Control Module Memory Check Sum Error
The PCM detected a memory integrity problem when checking its stored data against expected values.
Also searched as: PCM memory checksum error, internal control module memory error
View causes and checks P0603 medium
Internal Control Module Keep Alive Memory Error
The PCM lost or failed its keep-alive memory, usually because memory power or the module itself became unstable.
Also searched as: keep alive memory error, PCM memory reset code
View causes and checks P0605 high
Internal Control Module ROM Error
The PCM detected a read-only memory integrity problem inside the control module.
Also searched as: internal control module ROM error, PCM ROM error
View causes and checks P0606 high
PCM/ECM Processor Fault
The engine or powertrain control module detected an internal processor problem serious enough to flag controller integrity.
Also searched as: PCM processor fault, ECM processor fault
View causes and checks P0607 high
Control Module Performance
The PCM decided its overall internal operation is out of acceptable performance range.
Also searched as: control module performance, PCM performance fault
View causes and checks P060A high
Internal Control Module Monitoring Processor Performance
The PCM decided its internal monitoring processor is no longer performing within the expected self-check range.
Also searched as: internal control module monitoring processor performance, PCM monitoring processor performance
View causes and checks P0615 high
Starter Relay Circuit
The PCM detected a fault in the starter relay control or monitoring circuit.
Also searched as: starter relay circuit fault, starter control relay code
View causes and checks P0616 high
Starter Relay Circuit Low
The PCM detected the starter relay circuit staying lower than expected.
Also searched as: starter relay circuit low, starter control low input
View causes and checks P0617 high
Starter Relay Circuit High
The PCM detected the starter relay circuit staying higher than expected or shorted toward power.
Also searched as: starter relay circuit high, starter control high input
View causes and checks P061B high
Internal Control Module Torque Calculation Performance
The PCM decided the torque model it calculates internally no longer matches what the engine and throttle data say should be happening.
Also searched as: internal control module torque calculation performance, PCM torque calculation performance
View causes and checks P0620 high
Generator Control Circuit Malfunction
The ECU detected a problem in the circuit used to control or monitor alternator output.
Also searched as: generator control circuit malfunction, alternator control circuit code
View causes and checks P0621 medium
Generator Lamp/L Terminal Circuit Malfunction
The ECU detected a fault in the alternator lamp or L-terminal circuit used to report charging status.
Also searched as: generator lamp circuit malfunction, alternator L terminal fault
View causes and checks P0622 high
Generator Field/F Terminal Circuit Malfunction
The ECU detected a fault in the alternator field or F-terminal control circuit.
Also searched as: generator field circuit malfunction, alternator field control code
View causes and checks P0623 medium
Generator Lamp Control Circuit Malfunction
The ECU detected a problem in the circuit used to command the charging warning lamp.
Also searched as: generator lamp control circuit malfunction, battery light control circuit fault
View causes and checks P0624 medium
Generator Lamp Control Circuit Low
The ECU detected the generator lamp control circuit staying lower than expected.
Also searched as: generator lamp control circuit low, battery light control low
View causes and checks P0625 high
Generator Field/F Terminal Circuit Low
The ECU detected the alternator field or F-terminal circuit staying lower than expected.
Also searched as: generator field circuit low, F terminal circuit low
View causes and checks P0626 high
Generator Field/F Terminal Circuit High
The ECU detected the alternator field or F-terminal circuit staying higher than expected.
Also searched as: generator field circuit high, F terminal circuit high
View causes and checks P0627 high
Fuel Pump A Control Circuit/Open
The ECU sees the fuel pump A control circuit open or unable to complete the commanded path.
Also searched as: fuel pump A control circuit open, P0627 fuel pump control circuit
View causes and checks P0628 high
Fuel Pump A Control Circuit Low
The ECU sees the fuel pump A control circuit voltage pulled low or lower than expected.
Also searched as: fuel pump A control circuit low, P0628 fuel pump control low
View causes and checks P0629 medium
Fuel Pump A Control Circuit High
The ECU sees the fuel pump A control circuit stuck high or higher than expected.
Also searched as: fuel pump A control circuit high, P0629 fuel pump control high
View causes and checks P0633 high
Immobilizer Key Not Programmed - ECM/PCM
The PCM is not paired correctly with the immobilizer key data it expects.
Also searched as: immobilizer key not programmed, PCM key not programmed
View causes and checks P0641 high
Sensor Reference Voltage A Circuit/Open
The ECU sees the 5-volt reference A circuit missing, open, or implausible across one or more sensors that share that feed.
Also searched as: sensor reference voltage A circuit open, 5 volt reference A circuit fault
View causes and checks P0651 high
Sensor Reference Voltage B Circuit/Open
The ECU detected the shared 5-volt reference B circuit missing or behaving like an open circuit.
Also searched as: sensor reference voltage B circuit open, 5 volt reference B fault
View causes and checks P0652 high
Sensor Reference Voltage B Circuit Low
The ECU sees the shared reference-voltage B circuit pulled lower than expected.
Also searched as: sensor reference voltage B circuit low, 5 volt reference B low
View causes and checks P0653 high
Sensor Reference Voltage B Circuit High
The ECU detected the shared reference-voltage B circuit higher than expected or biased toward voltage.
Also searched as: sensor reference voltage B circuit high, 5 volt reference B high
View causes and checks P0670 medium
Glow Plug Control Module Control Circuit
The ECU detected a fault in the glow plug control module circuit rather than one single cylinder plug.
Also searched as: glow plug module control circuit, glow plug control module fault
View causes and checks P0671 medium
Cylinder 1 Glow Plug Circuit/Open
The ECU detected an open or fault in the cylinder 1 glow plug circuit.
Also searched as: cylinder 1 glow plug circuit, glow plug 1 open
View causes and checks P0672 medium
Cylinder 2 Glow Plug Circuit/Open
The ECU detected an open or fault in the cylinder 2 glow plug circuit.
Also searched as: cylinder 2 glow plug circuit, glow plug 2 open
View causes and checks P0673 medium
Cylinder 3 Glow Plug Circuit/Open
The ECU detected an open or fault in the cylinder 3 glow plug circuit.
Also searched as: cylinder 3 glow plug circuit, glow plug 3 open
View causes and checks P0674 medium
Cylinder 4 Glow Plug Circuit/Open
The ECU detected an open or fault in the cylinder 4 glow plug circuit.
Also searched as: cylinder 4 glow plug circuit, glow plug 4 open
View causes and checks P0675 medium
Cylinder 5 Glow Plug Circuit/Open
The ECU detected an open or fault in the cylinder 5 glow plug circuit.
Also searched as: cylinder 5 glow plug circuit, glow plug 5 open
View causes and checks P0676 medium
Cylinder 6 Glow Plug Circuit/Open
The ECU detected an open or fault in the cylinder 6 glow plug circuit.
Also searched as: cylinder 6 glow plug circuit, glow plug 6 open
View causes and checks P0685 high
ECM/PCM Power Relay Control Circuit/Open
The PCM detected an open or missing control path for the engine-control power relay.
Also searched as: PCM power relay circuit open, ECM relay open circuit
View causes and checks P0686 high
ECM/PCM Power Relay Control Circuit Low
The PCM saw the relay control circuit stay lower than expected.
Also searched as: PCM power relay control low, ECM relay low input
View causes and checks P0687 high
ECM/PCM Power Relay Control Circuit High
The PCM detected the relay control circuit staying higher than expected or shorted toward power.
Also searched as: PCM power relay control high, ECM relay high input
View causes and checks P0688 high
ECM/PCM Power Relay Sense Circuit/Open
The PCM could not verify relay output through the sense circuit.
Also searched as: PCM power relay sense open, ECM relay sense circuit open
View causes and checks P0689 high
ECM/PCM Power Relay Sense Circuit Low
The PCM saw relay-output feedback lower than expected on the sense circuit.
Also searched as: PCM power relay sense low, ECM relay feedback low
View causes and checks P068A high
ECM/PCM Power Relay De-Energized Performance Too Early
The PCM believes its main power relay is dropping out sooner than it should.
Also searched as: PCM power relay de-energized too early, ECM relay drops out too soon
View causes and checks P0690 high
ECM/PCM Power Relay Sense Circuit High
The PCM saw the relay-output feedback stay higher than expected or electrically biased high.
Also searched as: PCM power relay sense high, ECM relay feedback high
View causes and checks P0697 high
Sensor Reference Voltage C Circuit/Open
The ECU detected the shared reference-voltage C circuit missing or open.
Also searched as: sensor reference voltage C circuit open, 5 volt reference C fault
View causes and checks P0698 high
Sensor Reference Voltage C Circuit Low
The ECU sees the shared reference-voltage C circuit pulled lower than expected.
Also searched as: sensor reference voltage C circuit low, 5 volt reference C low
View causes and checks P0699 high
Sensor Reference Voltage C Circuit High
The ECU detected the shared reference-voltage C circuit higher than expected or biased toward voltage.
Also searched as: sensor reference voltage C circuit high, 5 volt reference C high
View causes and checks P06DA high
Engine Oil Pressure Control Circuit/Open
The PCM sees an electrical fault or open circuit in the variable oil pressure control system.
Also searched as: engine oil pressure control circuit open, oil pressure control solenoid circuit open
View causes and checks P06DB high
Engine Oil Pressure Control Performance
The PCM commanded oil pressure control but the response did not behave the way it expected.
Also searched as: engine oil pressure control performance, oil pressure control valve performance
View causes and checks P06DD high
Engine Oil Pressure Control Stuck Off
The PCM believes the oil pressure control system is stuck in the low-pressure or off state when it should be active.
Also searched as: engine oil pressure control stuck off, oil pressure control stuck low
View causes and checks P06DE medium
Engine Oil Pressure Control Stuck On
The PCM believes the oil pressure control system is staying in the high-pressure or on state when it should back off.
Also searched as: engine oil pressure control stuck on, oil pressure control stuck high
View causes and checks P0700 high
Transmission Control System Malfunction
The engine computer is reporting that the transmission control module has stored one or more transmission-related faults.
Also searched as: transmission control system malfunction, TCM requested MIL
View causes and checks P0705 high
Transmission Range Sensor Circuit Malfunction (PRNDL Input)
The transmission controller is not getting a believable gear-position signal from the range sensor or selector circuit.
Also searched as: transmission range sensor circuit malfunction, PRNDL switch fault
View causes and checks P0706 high
Transmission Range Sensor Range/Performance
The range sensor signal is present, but it does not behave consistently enough for the controller to trust it.
Also searched as: transmission range sensor performance, PRNDL range performance
View causes and checks P0707 high
Transmission Range Sensor Circuit Low Input
The controller sees the transmission range sensor signal stuck lower than expected electrically.
Also searched as: transmission range sensor low input, PRNDL circuit low
View causes and checks P0708 high
Transmission Range Sensor Circuit High Input
The range-sensor signal is staying higher than expected electrically.
Also searched as: transmission range sensor high input, PRNDL circuit high
View causes and checks P0709 high
Transmission Range Sensor Circuit Intermittent
The range-sensor signal drops out or changes unpredictably instead of failing in one steady direction.
Also searched as: transmission range sensor intermittent, PRNDL intermittent fault
View causes and checks P0710 medium
Transmission Fluid Temperature Sensor Circuit Malfunction
The controller cannot trust the transmission fluid temperature signal at all.
Also searched as: transmission fluid temp sensor fault, ATF temperature sensor circuit malfunction
View causes and checks P0711 medium
Transmission Fluid Temperature Sensor Range/Performance
The fluid-temperature signal exists, but it does not change in a believable way.
Also searched as: transmission fluid temp sensor performance, ATF temp range performance
View causes and checks P0712 medium
Transmission Fluid Temperature Sensor Circuit Low Input
The fluid-temperature signal is lower than expected, which usually makes the controller think the transmission is hotter than it really is.
Also searched as: transmission fluid temp sensor low input, ATF temp low voltage
View causes and checks P0713 medium
Transmission Fluid Temperature Sensor Circuit High Input
The temperature-sensor circuit is reading higher than expected electrically, often making the controller think the fluid is colder than it really is.
Also searched as: transmission fluid temp sensor high input, ATF temp high voltage
View causes and checks P0714 medium
Transmission Fluid Temperature Sensor Circuit Intermittent
The transmission temperature reading drops out or changes erratically instead of staying stable.
Also searched as: transmission fluid temp sensor intermittent, ATF temp intermittent
View causes and checks P0715 high
Input/Turbine Speed Sensor Circuit Malfunction
The transmission controller is not getting a believable electrical signal from the input or turbine speed sensor circuit.
Also searched as: input speed sensor circuit malfunction, turbine speed sensor circuit fault
View causes and checks P0716 high
Input/Turbine Speed Sensor Range/Performance
The input-speed signal is present, but it does not behave the way the transmission controller expects.
Also searched as: input speed sensor performance code, turbine speed sensor range performance
View causes and checks P0717 high
Input/Turbine Speed Sensor No Signal
The transmission controller is seeing no usable input-speed signal at all.
Also searched as: input speed sensor no signal, turbine speed sensor no signal
View causes and checks P0718 high
Input/Turbine Speed Sensor Circuit Intermittent
The turbine-speed sensor signal drops out occasionally instead of failing all the time.
Also searched as: input speed sensor intermittent, turbine speed sensor intermittent
View causes and checks P0719 medium
Brake Switch B Circuit Low
The transmission or engine controller sees the brake-switch B input stuck low or lower than expected.
Also searched as: brake switch B circuit low, P0719 brake switch fault
View causes and checks P0720 high
Output Speed Sensor Circuit Malfunction
The transmission controller is seeing an electrical problem in the output-speed sensor circuit.
Also searched as: output speed sensor circuit malfunction, OSS sensor code
View causes and checks P0721 high
Output Speed Sensor Range/Performance
The output-speed signal exists, but the way it behaves does not match what the transmission controller expects.
Also searched as: output speed sensor range performance, OSS performance code
View causes and checks P0722 high
Output Speed Sensor No Signal
The transmission controller sees no usable output-speed signal.
Also searched as: output speed sensor no signal, OSS no signal
View causes and checks P0723 high
Output Speed Sensor Intermittent
The output-speed signal drops in and out instead of staying stable.
Also searched as: output speed sensor intermittent, intermittent OSS signal
View causes and checks P0724 medium
Brake Switch B Circuit High
The brake-switch B circuit is reading high or stuck on when it should not.
Also searched as: brake switch B circuit high, P0724 brake switch stuck on
View causes and checks P0725 high
Engine Speed Input Circuit Malfunction
The transmission controller is not receiving a trustworthy engine RPM signal from the engine-management side.
Also searched as: engine speed input circuit malfunction, P0725 engine speed signal fault
View causes and checks P0726 high
Engine Speed Input Circuit Range/Performance
The engine RPM signal reaches the transmission controller, but its behavior is not believable enough for normal control decisions.
Also searched as: engine speed input circuit range performance, P0726 engine speed performance
View causes and checks P0727 high
Engine Speed Input Circuit No Signal
The transmission controller is losing the engine RPM input completely instead of just seeing a weak or irrational version of it.
Also searched as: engine speed input no signal, P0727 no engine rpm signal to TCM
View causes and checks P0728 high
Engine Speed Input Circuit Intermittent
The transmission controller loses the engine RPM signal intermittently rather than all at once or all the time.
Also searched as: engine speed input intermittent, P0728 intermittent engine rpm to TCM
View causes and checks P0730 high
Incorrect Gear Ratio
The transmission controller commanded a gear, but the speed data says the ratio does not match what that gear should produce.
Also searched as: incorrect gear ratio, gear ratio error
View causes and checks P0731 high
Gear 1 Incorrect Ratio
The transmission controller commanded first gear, but the measured speed relationship did not match the ratio expected for first gear.
Also searched as: gear 1 incorrect ratio, first gear incorrect ratio
View causes and checks P0732 high
Gear 2 Incorrect Ratio
The controller commanded second gear, but the measured speed relationship did not match second gear as expected.
Also searched as: gear 2 incorrect ratio, second gear incorrect ratio
View causes and checks P0733 high
Gear 3 Incorrect Ratio
The commanded third-gear ratio did not match the speed relationship the transmission controller measured.
Also searched as: gear 3 incorrect ratio, third gear incorrect ratio
View causes and checks P0734 high
Gear 4 Incorrect Ratio
The controller commanded fourth gear, but the measured ratio did not match what fourth gear should produce.
Also searched as: gear 4 incorrect ratio, fourth gear incorrect ratio
View causes and checks P0735 high
Gear 5 Incorrect Ratio
The measured ratio did not match the expected relationship when the controller commanded fifth gear.
Also searched as: gear 5 incorrect ratio, fifth gear incorrect ratio
View causes and checks P0736 high
Reverse Incorrect Ratio
The measured speed relationship did not match what the controller expected when reverse was commanded.
Also searched as: reverse incorrect ratio, reverse gear ratio error
View causes and checks P0740 high
Torque Converter Clutch Circuit Malfunction
The transmission controller sees a fault in the torque-converter clutch control circuit or control path.
Also searched as: torque converter clutch circuit malfunction, TCC circuit fault
View causes and checks P0741 high
Torque Converter Clutch Circuit Performance or Stuck Off
The torque converter clutch is not applying the way the controller expects, even though the command is being issued.
Also searched as: torque converter clutch stuck off, TCC performance code
View causes and checks P0742 high
Torque Converter Clutch Circuit Stuck On
The controller believes the torque converter clutch is staying applied when it should be released.
Also searched as: torque converter clutch stuck on, TCC stuck applied
View causes and checks P0743 high
Torque Converter Clutch Solenoid Circuit Electrical
The controller detected an electrical fault in the torque-converter clutch solenoid circuit.
Also searched as: TCC solenoid electrical, torque converter clutch solenoid circuit electrical
View causes and checks P0744 high
Torque Converter Clutch Circuit Intermittent
The controller detected an intermittent fault in the torque-converter clutch control circuit or command path.
Also searched as: torque converter clutch circuit intermittent, TCC intermittent fault
View causes and checks P0745 high
Pressure Control Solenoid A Malfunction
The controller detected a fault in the pressure-control solenoid A circuit or response.
Also searched as: pressure control solenoid A malfunction, line pressure solenoid A fault
View causes and checks P0746 high
Pressure Control Solenoid A Performance or Stuck Off
The transmission did not see the pressure-control response it expected when solenoid A was commanded.
Also searched as: pressure control solenoid A performance, PCS A stuck off
View causes and checks P0747 high
Pressure Control Solenoid A Stuck On
The controller believes pressure-control solenoid A is remaining applied when it should back off or change state.
Also searched as: pressure control solenoid A stuck on, PCS A stuck on
View causes and checks P0748 high
Pressure Control Solenoid A Electrical
The controller detected an electrical fault in the pressure-control solenoid A circuit.
Also searched as: pressure control solenoid A electrical, PCS A circuit electrical
View causes and checks P0749 high
Pressure Control Solenoid A Intermittent
The controller detected an intermittent fault in the pressure-control solenoid A circuit or command response.
Also searched as: pressure control solenoid A intermittent, PCS A intermittent fault
View causes and checks P0750 high
Shift Solenoid A Malfunction
The controller detected a fault in the shift-solenoid A circuit or operation.
Also searched as: shift solenoid A malfunction, shift solenoid A code
View causes and checks P0751 high
Shift Solenoid A Performance or Stuck Off
The controller commanded shift solenoid A, but the transmission response looks like that solenoid is not doing its job.
Also searched as: shift solenoid A performance, shift solenoid A stuck off
View causes and checks P0752 high
Shift Solenoid A Stuck On
The controller believes shift solenoid A is staying applied when it should release.
Also searched as: shift solenoid A stuck on, P0752 stuck on code
View causes and checks P0753 high
Shift Solenoid A Electrical
The controller detected an electrical fault in the shift-solenoid A circuit.
Also searched as: shift solenoid A electrical, P0753 electrical fault
View causes and checks P0754 high
Shift Solenoid A Intermittent
The shift-solenoid A command path cuts in and out instead of failing all the time.
Also searched as: shift solenoid A intermittent, P0754 intermittent code
View causes and checks P0755 high
Shift Solenoid B Malfunction
The controller detected a fault in the shift-solenoid B circuit or response.
Also searched as: shift solenoid B malfunction, shift solenoid B code
View causes and checks P0756 high
Shift Solenoid B Performance or Stuck Off
The controller commanded shift solenoid B, but the expected hydraulic or ratio change did not happen.
Also searched as: shift solenoid B performance, shift solenoid B stuck off
View causes and checks P0757 high
Shift Solenoid B Stuck On
The controller believes shift solenoid B is remaining applied when it should switch off.
Also searched as: shift solenoid B stuck on, P0757 stuck on code
View causes and checks P0758 high
Shift Solenoid B Electrical
The controller detected an electrical fault in the shift-solenoid B circuit.
Also searched as: shift solenoid B electrical, P0758 electrical fault
View causes and checks P0759 high
Shift Solenoid B Intermittent
The shift-solenoid B control path works sometimes and drops out at other times.
Also searched as: shift solenoid B intermittent, P0759 intermittent code
View causes and checks P0760 high
Shift Solenoid C Malfunction
The controller detected a fault in the shift-solenoid C control circuit or operation.
Also searched as: shift solenoid C malfunction, shift solenoid C code
View causes and checks P0761 high
Shift Solenoid C Performance or Stuck Off
The controller commanded shift solenoid C, but the expected hydraulic or ratio response did not happen.
Also searched as: shift solenoid C performance, shift solenoid C stuck off
View causes and checks P0762 high
Shift Solenoid C Stuck On
The controller believes shift solenoid C is staying applied when it should release.
Also searched as: shift solenoid C stuck on, P0762 stuck on code
View causes and checks P0763 high
Shift Solenoid C Electrical
The controller detected an electrical fault in the shift-solenoid C circuit.
Also searched as: shift solenoid C electrical, P0763 electrical fault
View causes and checks P0764 high
Shift Solenoid C Intermittent
The shift-solenoid C control path loses stability and works only part of the time.
Also searched as: shift solenoid C intermittent, P0764 intermittent code
View causes and checks P0765 high
Shift Solenoid D Malfunction
The controller detected a fault in the shift-solenoid D circuit or response path.
Also searched as: shift solenoid D malfunction, P0765 transmission code
View causes and checks P0766 high
Shift Solenoid D Performance or Stuck Off
The controller commanded shift-solenoid D but did not see the expected response from the transmission.
Also searched as: shift solenoid D performance, P0766 stuck off
View causes and checks P0767 high
Shift Solenoid D Stuck On
The controller believes shift-solenoid D is staying applied when it should release or change state.
Also searched as: shift solenoid D stuck on, P0767 stuck on code
View causes and checks P0768 high
Shift Solenoid D Electrical
The controller detected an electrical fault in the shift-solenoid D circuit.
Also searched as: shift solenoid D electrical, P0768 electrical fault
View causes and checks P0770 high
Shift Solenoid E Malfunction
The controller detected a general malfunction in the shift-solenoid E command path.
Also searched as: shift solenoid E malfunction, P0770 transmission code
View causes and checks P0771 high
Shift Solenoid E Performance or Stuck Off
The controller commanded shift solenoid E but did not see the expected response, often like it is stuck off or too slow to react.
Also searched as: shift solenoid E performance, P0771 stuck off
View causes and checks P0772 high
Shift Solenoid E Stuck On
The controller believes the shift-solenoid E path is staying applied when it should release.
Also searched as: shift solenoid E stuck on, P0772 stuck on code
View causes and checks P0773 high
Shift Solenoid E Electrical
The controller detected an electrical fault in the shift-solenoid E circuit.
Also searched as: shift solenoid E electrical, P0773 electrical fault
View causes and checks P0774 high
Shift Solenoid E Intermittent
The controller detected an intermittent fault in the shift-solenoid E path.
Also searched as: shift solenoid E intermittent, P0774 intermittent code
View causes and checks P0775 high
Pressure Control Solenoid B Malfunction
The controller detected a fault in the pressure-control-solenoid B circuit or response path.
Also searched as: pressure control solenoid B malfunction, line pressure solenoid B fault
View causes and checks P0776 high
Pressure Control Solenoid B Performance or Stuck Off
The transmission did not see the pressure-control response it expected when solenoid B was commanded.
Also searched as: pressure control solenoid B performance, PCS B stuck off
View causes and checks P0777 high
Pressure Control Solenoid B Stuck On
The controller believes pressure-control solenoid B is staying applied when it should back off or change state.
Also searched as: pressure control solenoid B stuck on, PCS B stuck on
View causes and checks P0778 high
Pressure Control Solenoid B Electrical
The controller detected an electrical fault in the pressure-control-solenoid B circuit.
Also searched as: pressure control solenoid B electrical, PCS B circuit electrical
View causes and checks P0779 high
Pressure Control Solenoid B Intermittent
The controller detected an intermittent fault in the pressure-control-solenoid B circuit or command response.
Also searched as: pressure control solenoid B intermittent, PCS B intermittent fault
View causes and checks P0780 high
Shift Malfunction
The transmission controller saw shift behavior so abnormal that it could not tie the problem to just one smaller code path.
Also searched as: shift malfunction code, generic transmission shift fault
View causes and checks P0785 high
Shift/Timing Solenoid A Malfunction
The transmission controller detected a fault in the shift/timing solenoid A circuit or its commanded operation.
Also searched as: shift timing solenoid A malfunction, P0785 shift solenoid A malfunction
View causes and checks P0786 high
Shift/Timing Solenoid A Range/Performance
The controller commanded shift/timing solenoid A, but the transmission response did not look correct.
Also searched as: shift timing solenoid A range performance, P0786 shift solenoid A performance
View causes and checks P0787 high
Shift/Timing Solenoid A Circuit Low
The controller sees the shift/timing solenoid A circuit voltage lower than expected.
Also searched as: shift timing solenoid A circuit low, P0787 low input
View causes and checks P0788 high
Shift/Timing Solenoid A Circuit High
The controller sees the shift/timing solenoid A circuit voltage higher than expected.
Also searched as: shift timing solenoid A circuit high, P0788 high input
View causes and checks P0789 high
Shift/Timing Solenoid A Intermittent
The controller sees the shift/timing solenoid A signal or response drop in and out intermittently.
Also searched as: shift timing solenoid A intermittent, P0789 intermittent fault
View causes and checks P0795 high
Pressure Control Solenoid C Malfunction
The controller detected a fault in the pressure-control-solenoid C circuit or response path.
Also searched as: pressure control solenoid C malfunction, line pressure solenoid C fault
View causes and checks P0796 high
Pressure Control Solenoid C Performance or Stuck Off
The transmission did not see the pressure-control response it expected when solenoid C was commanded.
Also searched as: pressure control solenoid C performance, PCS C stuck off
View causes and checks P0797 high
Pressure Control Solenoid C Stuck On
The controller believes pressure-control solenoid C is staying applied when it should back off or change state.
Also searched as: pressure control solenoid C stuck on, PCS C stuck on
View causes and checks P0798 high
Pressure Control Solenoid C Electrical
The controller detected an electrical fault in the pressure-control-solenoid C circuit.
Also searched as: pressure control solenoid C electrical, PCS C circuit electrical
View causes and checks P0799 high
Pressure Control Solenoid C Intermittent
The controller detected an intermittent fault in the pressure-control-solenoid C circuit or command response.
Also searched as: pressure control solenoid C intermittent, PCS C intermittent fault
View causes and checks P0841 high
Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance
The transmission controller sees a pressure-switch or fluid-pressure signal that exists but does not behave credibly.
Also searched as: transmission fluid pressure sensor switch A range performance, P0841 transmission pressure sensor performance
View causes and checks P0846 high
Transmission Fluid Pressure Sensor/Switch B Circuit Range/Performance
The controller sees the B pressure-sensor or switch circuit responding outside its expected range or timing.
Also searched as: transmission fluid pressure sensor switch B range performance, P0846 transmission pressure switch B performance
View causes and checks P0868 high
Transmission Fluid Pressure Low
The transmission controller believes overall fluid or line pressure is lower than the transmission needs.
Also searched as: transmission fluid pressure low, low line pressure code
View causes and checks P0871 high
Transmission Fluid Pressure Sensor/Switch C Range/Performance
The transmission controller saw the pressure signal or switch state for circuit C behave outside the expected pattern.
Also searched as: transmission fluid pressure sensor switch c range performance, P0871 pressure switch C
View causes and checks P1101 medium
Mass Air Flow Sensor Out of Self-Test Range
The PCM thinks the airflow reading is plausible enough to run the engine but wrong enough to fail its rationality checks.
Also searched as: mass air flow sensor out of self test range, MAF out of self test range
View causes and checks P1128 medium
Closed Loop Fueling Not Achieved Bank 1
The engine controller could not achieve expected closed-loop fuel-control operation on bank 1.
Also searched as: closed loop fueling not achieved bank 1, bank 1 closed loop not achieved
View causes and checks P1129 medium
Closed Loop Fueling Not Achieved Bank 2
The controller could not achieve expected closed-loop fuel control on bank 2.
Also searched as: closed loop fueling not achieved bank 2, bank 2 closed loop not achieved
View causes and checks P1174 medium
Fuel Trim Cylinder Balance Bank 1
The controller sees bank 1 fuel trim or cylinder contribution behaving unevenly enough to flag an imbalance.
Also searched as: fuel trim cylinder balance bank 1, bank 1 fuel trim balance
View causes and checks P1450 medium
Unable to Bleed Up Fuel Tank Vacuum
The EVAP system could not relieve excessive vacuum in the fuel tank when the PCM expected it to.
Also searched as: unable to bleed up fuel tank vacuum, fuel tank vacuum not relieved
View causes and checks P1516 high
Throttle Actuator Control Module Throttle Actuator Position Performance
The controller sees the electronic throttle plate failing to follow commanded position the way it should.
Also searched as: throttle actuator control position performance, reduced engine power throttle code
View causes and checks P1682 high
Ignition 1 Switch Circuit 2
The PCM sees a problem with one of the ignition-switch feed circuits used to verify Run/Crank power.
Also searched as: ignition 1 switch circuit 2, P1682 ignition switch code
View causes and checks P2002 high
Diesel Particulate Filter Efficiency Below Threshold (Bank 1)
The PCM believes the Bank 1 diesel particulate filter is no longer trapping soot as effectively as expected.
Also searched as: diesel particulate filter efficiency below threshold bank 1, DPF efficiency bank 1
View causes and checks P2003 high
Diesel Particulate Filter Efficiency Below Threshold (Bank 2)
The PCM believes the Bank 2 particulate filter is not reducing soot as effectively as expected.
Also searched as: diesel particulate filter efficiency below threshold bank 2, DPF efficiency bank 2
View causes and checks P2004 medium
Intake Manifold Runner Control Stuck Open (Bank 1)
The PCM sees the Bank 1 intake runner control staying more open than commanded.
Also searched as: intake manifold runner control stuck open bank 1, IMRC stuck open bank 1
View causes and checks P2005 medium
Intake Manifold Runner Control Stuck Open (Bank 2)
The PCM sees the Bank 2 intake runner control staying more open than commanded.
Also searched as: intake manifold runner control stuck open bank 2, IMRC stuck open bank 2
View causes and checks P2006 medium
Intake Manifold Runner Control Stuck Closed (Bank 1)
The Bank 1 intake runner control appears stuck more closed or restricted than the PCM commanded.
Also searched as: intake manifold runner control stuck closed bank 1, IMRC stuck closed bank 1
View causes and checks P2007 medium
Intake Manifold Runner Control Stuck Closed (Bank 2)
The Bank 2 intake runner control appears stuck too closed or restricted.
Also searched as: intake manifold runner control stuck closed bank 2, IMRC stuck closed bank 2
View causes and checks P2008 medium
Intake Manifold Runner Control Circuit / Open (Bank 1)
The PCM detected an electrical open or circuit fault in the Bank 1 intake runner control system.
Also searched as: intake manifold runner control circuit open bank 1, IMRC circuit open bank 1
View causes and checks P2009 medium
Intake Manifold Runner Control Circuit Low (Bank 1)
The Bank 1 intake runner control circuit is reading lower than expected.
Also searched as: intake manifold runner control circuit low bank 1, IMRC circuit low bank 1
View causes and checks P2010 medium
Intake Manifold Runner Control Circuit / Open (Bank 2)
The PCM detected an electrical open or circuit fault in the Bank 2 intake runner control system.
Also searched as: intake manifold runner control circuit open bank 2, IMRC circuit open bank 2
View causes and checks P2011 medium
Intake Manifold Runner Control Circuit Low (Bank 2)
The Bank 2 intake runner control circuit is reading lower than expected.
Also searched as: intake manifold runner control circuit low bank 2, IMRC circuit low bank 2
View causes and checks P2012 medium
Intake Manifold Runner Control Circuit High (Bank 1)
The Bank 1 intake runner control circuit is staying higher than expected or is biased toward a high input.
Also searched as: intake manifold runner control circuit high bank 1, IMRC circuit high bank 1
View causes and checks P2013 medium
Intake Manifold Runner Control Circuit High (Bank 2)
The Bank 2 intake runner control circuit is staying higher than expected.
Also searched as: intake manifold runner control circuit high bank 2, IMRC circuit high bank 2
View causes and checks P2014 medium
Intake Manifold Runner Position Sensor / Switch Circuit (Bank 1)
The PCM sees an implausible Bank 1 intake runner position signal or switch state.
Also searched as: intake manifold runner position sensor bank 1, IMRC position sensor bank 1
View causes and checks P2015 medium
Intake Manifold Runner Position Sensor / Switch Circuit Range/Performance (Bank 1)
The Bank 1 intake runner position signal is present but outside the expected range or does not track movement properly.
Also searched as: intake manifold runner position sensor range performance bank 1, P2015 intake runner code
View causes and checks P2016 medium
Intake Manifold Runner Position Sensor / Switch Circuit Low (Bank 1)
The PCM sees the Bank 1 intake runner position signal stuck lower than the expected range.
Also searched as: intake manifold runner position sensor circuit low bank 1, IMRC position sensor low bank 1
View causes and checks P2017 medium
Intake Manifold Runner Position Sensor / Switch Circuit High (Bank 1)
The Bank 1 intake runner position signal is reading higher than the PCM expects.
Also searched as: intake manifold runner position sensor circuit high bank 1, IMRC position sensor high bank 1
View causes and checks P2018 medium
Intake Manifold Runner Position Sensor / Switch Circuit Intermittent (Bank 1)
The PCM sees Bank 1 runner position feedback dropping out or behaving inconsistently.
Also searched as: intake manifold runner position sensor intermittent bank 1, IMRC position sensor intermittent bank 1
View causes and checks P2019 medium
Intake Manifold Runner Position Sensor / Switch Circuit (Bank 2)
The PCM sees an implausible Bank 2 intake runner position signal or switch state.
Also searched as: intake manifold runner position sensor bank 2, IMRC position sensor bank 2
View causes and checks P2020 medium
Intake Manifold Runner Position Sensor / Switch Circuit Range/Performance (Bank 2)
The Bank 2 intake runner position signal is present but out of range or not tracking commanded movement correctly.
Also searched as: intake manifold runner position sensor range performance bank 2, P2020 intake runner code
View causes and checks P2021 medium
Intake Manifold Runner Position Sensor / Switch Circuit Low (Bank 2)
The PCM sees the Bank 2 intake runner position signal stuck lower than expected.
Also searched as: intake manifold runner position sensor circuit low bank 2, IMRC position sensor low bank 2
View causes and checks P2022 medium
Intake Manifold Runner Position Sensor / Switch Circuit High (Bank 2)
The Bank 2 intake runner position signal is reading higher than the PCM expects.
Also searched as: intake manifold runner position sensor circuit high bank 2, IMRC position sensor high bank 2
View causes and checks P2023 medium
Intake Manifold Runner Position Sensor / Switch Circuit Intermittent (Bank 2)
The PCM sees Bank 2 runner position feedback dropping out or changing unpredictably.
Also searched as: intake manifold runner position sensor intermittent bank 2, IMRC position sensor intermittent bank 2
View causes and checks P2096 medium
Post Catalyst Fuel Trim System Too Lean (Bank 1)
The ECU thinks Bank 1 still looks lean after the catalyst, usually based on downstream oxygen-sensor behavior.
Also searched as: post catalyst fuel trim too lean bank 1, bank 1 post catalyst lean
View causes and checks P2097 medium
Post Catalyst Fuel Trim System Too Rich (Bank 1)
The ECU thinks Bank 1 still looks rich after the catalyst based on downstream oxygen-sensor behavior.
Also searched as: post catalyst fuel trim too rich bank 1, bank 1 post catalyst rich
View causes and checks P2098 medium
Post Catalyst Fuel Trim System Too Lean (Bank 2)
The ECU thinks Bank 2 still looks lean after the catalyst, usually based on downstream oxygen-sensor behavior.
Also searched as: post catalyst fuel trim too lean bank 2, bank 2 post catalyst lean
View causes and checks P2099 medium
Post Catalyst Fuel Trim System Too Rich (Bank 2)
The ECU thinks Bank 2 still looks rich after the catalyst based on downstream oxygen-sensor behavior.
Also searched as: post catalyst fuel trim too rich bank 2, bank 2 post catalyst rich
View causes and checks P2100 high
Throttle Actuator Control Motor Circuit/Open
The ECU sees an open or broken electrical path in the throttle actuator motor circuit.
Also searched as: throttle actuator motor open circuit, electronic throttle motor circuit open
View causes and checks P2101 high
Throttle Actuator Control Motor Circuit Range/Performance
The throttle actuator motor is not moving the plate the way the ECU expects when it commands it.
Also searched as: throttle actuator control performance, electronic throttle motor performance
View causes and checks P2102 high
Throttle Actuator Control Motor Circuit Low
The ECU sees the throttle actuator motor circuit pulled lower than expected, usually because the motor or its wiring cannot carry the control signal correctly.
Also searched as: throttle actuator motor circuit low, electronic throttle motor low input
View causes and checks P2103 high
Throttle Actuator Control Motor Circuit High
The ECU sees the throttle actuator motor circuit reading higher than expected, suggesting a short to power, control-driver issue, or actuator fault.
Also searched as: throttle actuator motor circuit high, electronic throttle motor high input
View causes and checks P2104 high
Throttle Actuator Control System - Forced Idle
The ECU has deliberately forced the engine to remain near idle because another fault made normal throttle control unsafe.
Also searched as: forced idle code, throttle forced idle mode
View causes and checks P2105 high
Throttle Actuator Control System - Forced Engine Shutdown
The ECU has shut the engine down or prevented normal running because it detected a severe throttle-control or safety-related fault.
Also searched as: forced engine shutdown code, throttle forced shutdown
View causes and checks P2106 high
Throttle Actuator Control System - Forced Limited Power
The ECU has deliberately limited engine output because another fault made full throttle operation unsafe.
Also searched as: forced limited power code, throttle actuator forced limp mode
View causes and checks P2107 high
Throttle Actuator Control Module Processor
The ECU has detected an internal control or self-test problem in the throttle-actuator control strategy.
Also searched as: throttle actuator module processor fault, PCM throttle control processor code
View causes and checks P2110 high
Throttle Actuator Control System - Forced Limited RPM
The ECU is deliberately capping engine RPM as part of a protective throttle-control strategy.
Also searched as: forced limited rpm code, throttle forced RPM limit
View causes and checks P2111 high
Throttle Actuator Control System - Stuck Open
The ECU believes the electronic throttle plate is hanging too far open or cannot return as commanded.
Also searched as: throttle stuck open code, electronic throttle stuck open
View causes and checks P2112 high
Throttle Actuator Control System - Stuck Closed
The ECU believes the throttle plate is stuck too close to shut or cannot open when commanded.
Also searched as: throttle stuck closed code, electronic throttle stuck closed
View causes and checks P2118 high
Throttle Actuator Control Motor Current Range/Performance
The ECU sees throttle-actuator motor current that does not match the movement it expects, suggesting drag, wear, or electrical load problems.
Also searched as: throttle actuator motor current range performance, electronic throttle motor current fault
View causes and checks P2119 high
Throttle Actuator Control Throttle Body Range/Performance
The throttle body cannot reach or control the expected position range accurately enough.
Also searched as: throttle body range performance, electronic throttle body performance
View causes and checks P2120 high
Throttle/Pedal Position Sensor/Switch D Circuit
The ECU sees a fault in the APP D circuit but has not narrowed it strictly to low, high, or intermittent behavior yet.
Also searched as: APP sensor D circuit fault, pedal position sensor D circuit
View causes and checks P2121 high
Throttle/Pedal Position Sensor/Switch D Circuit Range/Performance
The D-channel pedal signal still exists, but it no longer tracks through a believable range closely enough for the ECU to trust it.
Also searched as: APP sensor D range performance, pedal position sensor D performance
View causes and checks P2122 high
Throttle/Pedal Position Sensor/Switch D Circuit Low Input
The ECU sees one of the pedal or throttle position circuits reading lower than expected, making accelerator input unreliable.
Also searched as: pedal position sensor low input, APP sensor D low
View causes and checks P2123 high
Throttle/Pedal Position Sensor/Switch D Circuit High Input
The ECU sees the pedal-position D circuit reading higher than expected, making accelerator input implausible.
Also searched as: pedal position sensor high input, APP sensor D high
View causes and checks P2124 high
Throttle/Pedal Position Sensor/Switch D Circuit Intermittent
The ECU sees the pedal-position D circuit dropping out or behaving inconsistently instead of staying stable through pedal travel.
Also searched as: pedal position sensor D intermittent, APP sensor D intermittent
View causes and checks P2125 high
Throttle/Pedal Position Sensor/Switch E Circuit
The ECU sees a fault in the APP E circuit but has not narrowed it strictly to low, high, or intermittent behavior yet.
Also searched as: APP sensor E circuit fault, pedal position sensor E circuit
View causes and checks P2126 high
Throttle/Pedal Position Sensor/Switch E Circuit Range/Performance
The E-channel pedal signal still exists, but it no longer tracks through a believable range closely enough for the ECU to trust it.
Also searched as: APP sensor E range performance, pedal position sensor E performance
View causes and checks P2127 high
Throttle/Pedal Position Sensor/Switch E Circuit Low Input
The ECU sees another pedal-position channel reading too low, creating an accelerator-signal mismatch that can trigger limp mode.
Also searched as: APP sensor E low input, pedal position sensor E low
View causes and checks P2128 high
Throttle/Pedal Position Sensor/Switch E Circuit High Input
The ECU sees the APP E circuit reading too high, creating an unsafe mismatch between accelerator signals.
Also searched as: APP sensor E high input, pedal position sensor E high
View causes and checks P2129 high
Throttle/Pedal Position Sensor/Switch E Circuit Intermittent
The APP E signal works some of the time and drops out or becomes implausible at other times.
Also searched as: APP sensor E intermittent, pedal position sensor E intermittent
View causes and checks P2130 high
Throttle/Pedal Position Sensor/Switch F Circuit
The ECU sees a fault in the APP F circuit but has not yet narrowed it to low, high, or intermittent behavior.
Also searched as: APP sensor F circuit fault, pedal position sensor F circuit
View causes and checks P2131 high
Throttle/Pedal Position Sensor/Switch F Circuit Range/Performance
The F-channel pedal signal still exists, but it no longer tracks through a believable range closely enough for the ECU to trust it.
Also searched as: APP sensor F range performance, pedal position sensor F performance
View causes and checks P2132 high
Throttle/Pedal Position Sensor/Switch F Circuit Low Input
The ECU sees the APP F circuit reading too low, creating a pedal-signal mismatch that can trigger reduced power.
Also searched as: APP sensor F low input, pedal position sensor F low
View causes and checks P2133 high
Throttle/Pedal Position Sensor/Switch F Circuit High Input
The ECU sees the APP F circuit reading too high, creating an unsafe mismatch between accelerator signals.
Also searched as: APP sensor F high input, pedal position sensor F high
View causes and checks P2134 high
Throttle/Pedal Position Sensor/Switch F Circuit Intermittent
The ECU sees the pedal-position F circuit dropping out or behaving inconsistently instead of staying stable through pedal travel.
Also searched as: pedal position sensor F intermittent, APP sensor F intermittent
View causes and checks P2135 high
Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation
The ECU sees throttle or pedal position signals that no longer agree with each other closely enough to trust electronic throttle control.
Also searched as: throttle pedal correlation code, TPS APP correlation fault
View causes and checks P2138 high
Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation
The paired accelerator-pedal signals disagree enough that the ECU no longer trusts driver-demand input.
Also searched as: accelerator pedal correlation code, APP sensor correlation fault
View causes and checks P2176 medium
Throttle Actuator Control System - Idle Position Not Learned
The ECU no longer trusts the learned closed-idle position of the electronic throttle system.
Also searched as: idle position not learned, throttle relearn code
View causes and checks P2177 medium
System Too Lean Off Idle Bank 1
The PCM sees Bank 1 running lean when the engine is above idle rather than only at idle.
Also searched as: system too lean off idle bank 1, bank 1 lean off idle
View causes and checks P2179 medium
System Too Lean Off Idle Bank 2
The PCM sees Bank 2 running lean when the engine is above idle or under light throttle.
Also searched as: system too lean off idle bank 2, bank 2 lean off idle
View causes and checks P2181 high
Cooling System Performance
The PCM thinks overall engine cooling behavior is outside the expected temperature-control range.
Also searched as: cooling system performance, engine cooling performance code
View causes and checks P2183 medium
Engine Coolant Temperature Sensor 2 Circuit Range/Performance
The PCM sees coolant temperature sensor 2 behaving implausibly for the conditions.
Also searched as: engine coolant temperature sensor 2 range performance, ECT sensor 2 range performance
View causes and checks P2184 medium
Engine Coolant Temperature Sensor 2 Circuit Low
The PCM sees the sensor 2 signal lower than expected, usually meaning a hot-reading or short-low condition.
Also searched as: engine coolant temperature sensor 2 circuit low, ECT sensor 2 low input
View causes and checks P2185 medium
Engine Coolant Temperature Sensor 2 Circuit High
The PCM sees the sensor 2 signal higher than expected, usually meaning a cold-reading or open-circuit condition.
Also searched as: engine coolant temperature sensor 2 circuit high, ECT sensor 2 high input
View causes and checks P2187 medium
System Too Lean at Idle (Bank 1)
Bank 1 is running lean specifically at idle rather than across the full load range.
Also searched as: system too lean at idle bank 1, bank 1 lean at idle
View causes and checks P2188 medium
System Too Rich at Idle (Bank 1)
Bank 1 is running rich specifically at idle instead of across the full load range.
Also searched as: system too rich at idle bank 1, bank 1 rich at idle
View causes and checks P2189 medium
System Too Lean at Idle (Bank 2)
Bank 2 is running lean specifically at idle rather than across the whole operating range.
Also searched as: system too lean at idle bank 2, bank 2 lean at idle
View causes and checks P2190 medium
System Too Rich at Higher Load (Bank 2)
Bank 2 is running richer than expected when engine load rises beyond idle.
Also searched as: system too rich bank 2 at higher load, bank 2 rich under load
View causes and checks P2191 high
System Too Lean at Higher Load (Bank 1)
Bank 1 is running lean when airflow and engine load increase beyond idle.
Also searched as: system too lean bank 1 at higher load, bank 1 lean under load
View causes and checks P2192 medium
System Too Rich at Higher Load (Bank 1)
Bank 1 is running richer than expected when load and airflow rise beyond idle.
Also searched as: system too rich bank 1 at higher load, bank 1 rich under load
View causes and checks P2193 high
System Too Lean at Higher Load (Bank 2)
Bank 2 is running lean when engine load rises rather than mainly at idle.
Also searched as: system too lean bank 2 at higher load, bank 2 lean under load
View causes and checks P2194 medium
System Too Rich at Higher Load (Bank 2)
Bank 2 is running richer than expected once load and airflow increase.
Also searched as: system too rich bank 2 at higher load, bank 2 rich under load
View causes and checks P2195 medium
O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 1)
The upstream Bank 1 oxygen-sensor signal is staying lean or biased lean longer than the ECU expects.
Also searched as: bank 1 sensor 1 stuck lean, O2 sensor biased lean bank 1 sensor 1
View causes and checks P2196 medium
O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 1)
The upstream Bank 1 oxygen-sensor signal is staying rich or biased rich longer than expected.
Also searched as: bank 1 sensor 1 stuck rich, O2 sensor biased rich bank 1 sensor 1
View causes and checks P2197 medium
O2 Sensor Signal Biased/Stuck Lean (Bank 2 Sensor 1)
The upstream Bank 2 oxygen-sensor signal is staying lean or biased lean longer than expected.
Also searched as: bank 2 sensor 1 stuck lean, O2 sensor biased lean bank 2 sensor 1
View causes and checks P2198 medium
O2 Sensor Signal Biased/Stuck Rich (Bank 2 Sensor 1)
The upstream Bank 2 oxygen-sensor signal is staying rich or biased rich longer than expected.
Also searched as: bank 2 sensor 1 stuck rich, O2 sensor biased rich bank 2 sensor 1
View causes and checks P219A medium
Bank 1 Air/Fuel Ratio Imbalance
The ECU detected uneven air/fuel contribution across the cylinders on Bank 1 rather than a simple whole-engine rich or lean shift.
Also searched as: bank 1 air fuel ratio imbalance, bank 1 mixture imbalance
View causes and checks P219B medium
Bank 2 Air/Fuel Ratio Imbalance
The ECU detected uneven air/fuel contribution across the cylinders on Bank 2 rather than a simple whole-bank rich or lean shift.
Also searched as: bank 2 air fuel ratio imbalance, bank 2 mixture imbalance
View causes and checks P2227 medium
Barometric Pressure Circuit Range/Performance
The PCM sees a barometric-pressure signal that exists but does not track plausible atmospheric conditions.
Also searched as: barometric pressure circuit range performance, baro sensor performance code
View causes and checks P2228 medium
Barometric Pressure Circuit Low
The PCM sees the barometric-pressure signal lower than it should be for current altitude and key-on conditions.
Also searched as: barometric pressure circuit low, BARO sensor low input
View causes and checks P2229 medium
Barometric Pressure Circuit High
The PCM sees the barometric-pressure signal higher than it should be for current conditions.
Also searched as: barometric pressure circuit high, BARO sensor high input
View causes and checks P2261 medium
Turbo/Supercharger Bypass Valve Mechanical
The PCM commanded the bypass or diverter valve to move, but the valve did not behave mechanically the way boost control expected.
Also searched as: turbo bypass valve mechanical, diverter valve mechanical fault
View causes and checks P2262 high
Turbo/Supercharger Boost Pressure Not Detected Mechanical
The PCM expected boost to build, but the pressure rise was not there or was too weak to match the operating conditions.
Also searched as: boost pressure not detected mechanical, P2262 turbo boost pressure not detected
View causes and checks P2263 medium
Turbo/Super Charger Boost System Performance
The overall boost system is not responding the way the ECU expects, even if the fault is not yet narrowed to one simple branch.
Also searched as: turbo boost system performance, boost system performance code
View causes and checks P2270 medium
O2 Sensor Signal Stuck Lean (Bank 1 Sensor 2)
The downstream oxygen sensor on Bank 1 is reporting a lean-looking signal that appears stuck or implausibly biased low.
Also searched as: bank 1 sensor 2 stuck lean, rear O2 stuck lean bank 1
View causes and checks P2271 medium
O2 Sensor Signal Stuck Rich (Bank 1 Sensor 2)
The downstream oxygen sensor on Bank 1 is reporting a rich-looking signal that appears stuck or implausibly biased high.
Also searched as: bank 1 sensor 2 stuck rich, rear O2 stuck rich bank 1
View causes and checks P2272 medium
O2 Sensor Signal Stuck Lean (Bank 2 Sensor 2)
The downstream oxygen sensor on Bank 2 is reporting a lean-looking signal that appears stuck or implausibly biased low.
Also searched as: bank 2 sensor 2 stuck lean, rear O2 stuck lean bank 2
View causes and checks P2273 medium
O2 Sensor Signal Stuck Rich (Bank 2 Sensor 2)
The downstream oxygen sensor on Bank 2 is reporting a rich-looking signal that appears stuck or implausibly biased high.
Also searched as: bank 2 sensor 2 stuck rich, rear O2 stuck rich bank 2
View causes and checks P2279 medium
Intake Air System Leak
The PCM believes unmetered air is entering or the intake system is leaking in a way that disrupts load calculation.
Also searched as: intake air system leak, unmetered air leak code
View causes and checks P2287 high
Injector Control Pressure Sensor Circuit Intermittent
The PCM sees the injector control pressure signal dropping out or behaving intermittently.
Also searched as: injector control pressure sensor circuit intermittent, ICP sensor intermittent code
View causes and checks P2290 high
Fuel Pressure Regulator 2 Control Circuit
The ECU sees an electrical fault in the control path for fuel pressure regulator 2 rather than only a pressure result problem.
Also searched as: fuel pressure regulator 2 control circuit, P2290 regulator 2 circuit
View causes and checks P2291 high
Injector Control Pressure Too Low - Engine Cranking
During cranking, injector or rail pressure stays too low for the ECU to trust normal fuel delivery.
Also searched as: injector control pressure too low engine cranking, P2291 low fuel pressure while cranking
View causes and checks P2293 high
Fuel Pressure Regulator 2 Performance
Regulator 2 is responding poorly enough that commanded and actual pressure no longer track properly.
Also searched as: fuel pressure regulator 2 performance, P2293 regulator 2 performance
View causes and checks P2294 high
Fuel Pressure Regulator 2 Control Circuit/Open
The regulator 2 control circuit looks open or disconnected to the ECU.
Also searched as: fuel pressure regulator 2 control circuit open, P2294 regulator 2 open circuit
View causes and checks P2295 high
Fuel Pressure Regulator 2 Control Circuit Low
The regulator 2 control circuit is being pulled lower than the ECU expects.
Also searched as: fuel pressure regulator 2 control circuit low, P2295 regulator 2 low input
View causes and checks P2296 high
Fuel Pressure Regulator 2 Control Circuit High
The ECU sees the regulator 2 control circuit staying higher than expected.
Also searched as: fuel pressure regulator 2 control circuit high, P2296 regulator 2 high input
View causes and checks P2401 medium
EVAP Leak Detection Pump Control Circuit Low
The ECU sees the leak detection pump control circuit pulled lower than expected.
Also searched as: EVAP leak detection pump control low, leak detection pump circuit low
View causes and checks P2402 medium
EVAP Leak Detection Pump Control Circuit High
The leak detection pump control circuit is reading higher than expected.
Also searched as: EVAP leak detection pump circuit high, leak detection pump control high
View causes and checks P2404 medium
EVAP Leak Detection Pump Sense Circuit Range/Performance
The ECU sees an implausible feedback signal from the leak detection pump circuit.
Also searched as: EVAP leak detection pump sense circuit performance, leak detection pump range performance
View causes and checks P2421 medium
EVAP Vent Valve Stuck Open
The ECU believes the EVAP vent valve is not closing when it needs the system sealed.
Also searched as: EVAP vent valve stuck open, vent valve won’t close
View causes and checks P2422 medium
EVAP Vent Valve Stuck Closed
The EVAP vent valve appears unable to open and let the tank breathe normally.
Also searched as: EVAP vent valve stuck closed, vent valve won’t open
View causes and checks P2430 medium
Secondary Air Injection System Air Flow / Pressure Sensor Circuit
The PCM sees an electrical fault or implausible base signal in the secondary-air pressure sensor circuit.
Also searched as: secondary air pressure sensor circuit fault, secondary air flow pressure sensor circuit
View causes and checks P2431 medium
Secondary Air Injection System Air Flow / Pressure Sensor Circuit Range / Performance
The pressure sensor signal exists, but it does not behave the way the PCM expects during the secondary-air test.
Also searched as: secondary air pressure sensor range performance, P2431 secondary air sensor performance
View causes and checks P2432 medium
Secondary Air Injection System Air Flow / Pressure Sensor Circuit Low
The PCM sees the secondary-air pressure sensor signal stuck lower than expected.
Also searched as: secondary air pressure sensor low input, P2432 secondary air low
View causes and checks P2433 medium
Secondary Air Injection System Air Flow / Pressure Sensor Circuit High
The PCM sees the secondary-air pressure sensor signal stuck higher than expected.
Also searched as: secondary air pressure sensor high input, P2433 secondary air high
View causes and checks P2440 medium
Secondary Air Injection System Switching Valve Stuck Open Bank 1
The PCM believes the Bank 1 secondary-air switching valve is staying open when it should close.
Also searched as: secondary air valve stuck open bank 1, P2440 switching valve stuck open
View causes and checks P2441 medium
Secondary Air Injection System Switching Valve Stuck Closed Bank 1
The PCM believes the Bank 1 secondary-air switching valve is not opening when commanded.
Also searched as: secondary air valve stuck closed bank 1, P2441 switching valve stuck closed
View causes and checks P2442 medium
Secondary Air Injection System Switching Valve Stuck Open Bank 2
The PCM believes the Bank 2 secondary-air switching valve is staying open when it should close.
Also searched as: secondary air valve stuck open bank 2, P2442 switching valve stuck open
View causes and checks P2443 medium
Secondary Air Injection System Switching Valve Stuck Closed Bank 2
The PCM believes the Bank 2 secondary-air switching valve is not opening when commanded.
Also searched as: secondary air valve stuck closed bank 2, P2443 switching valve stuck closed
View causes and checks P2450 medium
EVAP Switching Valve Performance / Stuck Open
The EVAP switching valve is behaving as if it cannot close or perform as expected.
Also searched as: EVAP switching valve performance, EVAP switching valve stuck open
View causes and checks P2451 medium
EVAP Switching Valve Circuit Low
The EVAP switching valve control circuit is reading too low.
Also searched as: EVAP switching valve circuit low, switching valve low input
View causes and checks P2452 medium
EVAP Switching Valve Circuit High
The EVAP switching valve control circuit is reading higher than expected.
Also searched as: EVAP switching valve circuit high, switching valve high input
View causes and checks P2503 high
Charging System Voltage Low
The control module detected charging-system voltage staying lower than expected for dependable vehicle operation.
Also searched as: charging system voltage low, low charging system voltage
View causes and checks P2504 high
Charging System Voltage High
The control module detected charging-system voltage staying higher than expected for safe operation.
Also searched as: charging system voltage high, overcharging charging system code
View causes and checks P2505 high
ECM/PCM Power Input Signal
The control module flagged a problem in the main power-input signal feeding the ECM/PCM.
Also searched as: ECM power input signal, PCM power input signal fault
View causes and checks P2506 high
ECM/PCM Power Input Signal Range/Performance
The module saw its main power-input signal behave outside the expected range rather than staying clean and stable.
Also searched as: PCM power input range performance, ECM power input performance
View causes and checks P2507 high
ECM/PCM Power Input Signal Low
The module saw its main power-input signal drop lower than the calibrated minimum.
Also searched as: PCM power input low, ECM power feed low
View causes and checks P2508 high
ECM/PCM Power Input Signal High
The module detected its main power-input signal above the expected range or biased high.
Also searched as: PCM power input high, ECM power feed high
View causes and checks P2509 high
ECM/PCM Power Input Signal Intermittent
The module saw its main power-input signal drop in and out rather than staying stable.
Also searched as: PCM power input intermittent, ECM power feed intermittent
View causes and checks P2510 high
ECM/PCM Power Relay Sense Circuit Range/Performance
The module saw the PCM power-relay sense circuit behave outside the expected range or timing window.
Also searched as: PCM power relay sense performance, ECM relay sense range performance
View causes and checks P2534 high
Ignition Switch Run/Start Position Circuit Low
The PCM detected the ignition switch run/start position circuit staying lower than expected.
Also searched as: ignition run start circuit low, run start position low
View causes and checks P2535 high
Ignition Switch Run/Start Position Circuit High
The PCM detected the ignition switch run/start position circuit staying higher than expected or stuck powered.
Also searched as: ignition run start circuit high, run start position high
View causes and checks P2536 medium
Ignition Switch Accessory Position Circuit Low
The PCM detected the ignition switch accessory-position circuit staying lower than expected.
Also searched as: ignition accessory circuit low, accessory position low input
View causes and checks P2537 medium
Ignition Switch Accessory Position Circuit High
The PCM detected the ignition switch accessory-position circuit staying higher than expected or remaining active.
Also searched as: ignition accessory circuit high, accessory position high input
View causes and checks P2563 medium
Turbocharger Boost Control Position Sensor A Circuit Range/Performance
The ECU does not trust the turbo actuator position feedback because it no longer matches command or moves through a believable range.
Also searched as: turbo actuator position sensor code, boost control position sensor range performance
View causes and checks P2714 high
Pressure Control Solenoid D Performance or Stuck Off
The controller commanded pressure-control solenoid D, but the expected line-pressure or clutch-apply result did not happen.
Also searched as: pressure control solenoid D performance, P2714 pressure control solenoid D stuck off
View causes and checks P2716 high
Pressure Control Solenoid D Electrical
The controller detected an electrical fault in the pressure-control solenoid D circuit.
Also searched as: pressure control solenoid D electrical, P2716 electrical fault
View causes and checks P2761 high
Torque Converter Clutch Pressure Control Solenoid Control Circuit/Open
The controller detected an open or failed control circuit for the torque-converter-clutch pressure-control solenoid.
Also searched as: torque converter clutch pressure control solenoid circuit open, P2761 TCC pressure control solenoid
View causes and checks U0073 high
Control Module Communication Bus Off
A module detected that the CAN communication bus dropped into a bus-off state and normal messaging stopped.
Also searched as: CAN bus off, control module bus off
View causes and checks U0100 high
Lost Communication With ECM/PCM “A”
A module on the network stopped receiving expected messages from the engine or powertrain control module.
Also searched as: lost communication with pcm, ECM communication lost
View causes and checks U0101 high
Lost Communication With TCM
A module stopped receiving expected messages from the transmission control module.
Also searched as: lost communication with transmission control module, TCM communication lost
View causes and checks U0106 medium
Lost Communication With Glow Plug Control Module
The network lost communication with the glow plug control module used on diesel applications.
Also searched as: lost communication with glow plug module, glow plug module offline
View causes and checks U0109 high
Lost Communication With Fuel Pump Control Module
Another module stopped hearing the fuel pump control module on the vehicle network.
Also searched as: lost communication with fuel pump control module, fuel pump module offline
View causes and checks U0121 high
Lost Communication With Anti-Lock Brake System (ABS) Control Module
A module stopped receiving expected messages from the ABS control module.
Also searched as: lost communication with abs module, ABS module offline
View causes and checks U0126 medium
Lost Communication With Steering Angle Sensor Module
The network stopped receiving expected steering-angle data from the steering angle sensor module.
Also searched as: lost communication with steering angle sensor, steering angle module offline
View causes and checks U0140 high
Lost Communication With Body Control Module
A module stopped receiving expected messages from the body control module.
Also searched as: lost communication with bcm, body control module offline
View causes and checks U0146 high
Lost Communication With Gateway “A”
The rest of the vehicle network stopped hearing the central gateway module that routes messages between network segments.
Also searched as: lost communication with gateway module, gateway module offline
View causes and checks U0151 high
Lost Communication With Restraints Control Module
The network stopped receiving expected messages from the airbag or restraints control module.
Also searched as: lost communication with airbag module, restraints module offline
View causes and checks U0155 medium
Lost Communication With Instrument Panel Cluster (IPC) Control Module
A module stopped receiving expected messages from the instrument cluster or IPC module.
Also searched as: lost communication with instrument cluster, IPC offline
View causes and checks