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Home / Codes / P2107
DTC code page

P2107: Throttle Actuator Control Module Processor

Quick answer: The ECU has detected an internal control or self-test problem in the throttle-actuator control strategy.

Drivers also search this fault as throttle actuator module processor fault, PCM throttle control processor code, P2107 reduced power.

Severity: high Family: powertrain Related paths: 9
Meaning

What P2107 usually means

P2107 is the uncomfortable middle ground between ordinary wiring faults and a true module-level control problem. On many vehicles the throttle-actuator control logic lives inside the PCM, so this code can appear when the controller fails a self-check, sees an impossible internal calculation, or loses confidence because voltage and grounds are unstable. It is worth expanding because searchers who land on P2107 often also report sudden reduced power with no obvious throttle-body contamination, which makes it a strong adjacent page in the same cluster.

Fast triage

Start here before chasing parts

  • Scan first: save freeze-frame and pending codes before clearing anything.
  • Confirm the complaint: compare the stored code with current drivability symptoms.
  • Use context: trims, live data, and related codes usually narrow the fault faster than guesswork.
  • Work simplest to hardest: leaks, connectors, maintenance items, and known patterns before expensive components.
Initial checks

What to check first

  • Check battery condition, charging voltage, and grounds before assuming module failure.
  • Inspect PCM and throttle-related connectors for moisture or terminal damage.
  • Review whether other throttle actuator or pedal codes are present, because they often provide the real direction.
Driving risk

Can you keep driving?

P2107 should be treated seriously because control-module confidence in the throttle system is already compromised, and the vehicle may drop into limp mode again without warning.

High urgency: If symptoms are active, reduce driving and diagnose quickly before secondary damage builds.
Likely causes

Common causes behind this code

  • Internal PCM throttle-control self-test failure
  • Low voltage, charging instability, or bad grounds upsetting throttle control logic
  • Water intrusion or connector damage at the control module
  • Throttle actuator circuit fault severe enough to corrupt module checks
  • Rare software or internal hardware failure in the control module

Cause phrases often tied to this code: PCM self test failure, voltage instability, ground problem, throttle control processor fault, water intrusion.

Diagnostic order

Suggested workflow

  1. Verify stable system voltage during cranking, idle, and throttle application.
  2. Inspect power and ground feeds to the control module and throttle body.
  3. Check for companion throttle and pedal codes that may explain why the processor self-check failed.
  4. Inspect module connectors for water, spread terminals, or obvious damage.
  5. Consider controller testing or replacement only after basic electrical integrity is proven.
Avoid guesswork

Common mistakes

  • Jumping straight to PCM replacement before checking voltage and grounds.
  • Ignoring other throttle codes that provide a more ordinary root cause.
  • Calling the vehicle fixed after a battery swap without proving the code stayed away.
Repair path

Practical fix guidance

  • Stabilize voltage, grounds, and connector integrity first because processor codes can be side effects.
  • Repair confirmed upstream throttle-circuit faults before condemning the module.
  • If module failure is proven, complete programming and post-repair verification correctly.
Vehicle context

Affected brands in this MVP

Brand hubs help broaden internal linking now and can evolve into make-specific diagnostic notes later.

Aliases and common searches

English phrases tied to P2107

Useful when the driver knows the wording but not the exact DTC yet.

  • throttle actuator module processor fault
  • PCM throttle control processor code
  • P2107 reduced power
Related search intent

Queries this page can answer naturally

  • P2107 code meaning
  • what does P2107 mean
  • throttle actuator control module processor
FAQ

Quick questions about P2107

Does P2107 automatically mean a bad PCM?

No. Low voltage, poor grounds, and external throttle faults can trigger it too.

Why is voltage so important with P2107?

Because electronic throttle control depends on stable processor logic, and weak supply can make the module fail self-checks.

Can P2107 come and go after a restart?

Yes. Intermittent voltage or module stress can create that pattern.