What P0741 usually means
P0741 is high-value because it sits where highway drivability, transmission heat, and converter control all meet. The TCM expects to see converter slip drop when lockup is commanded. If that slip stays too high, it stores P0741. Sometimes the cause is a TCC solenoid or valve-body control problem. Sometimes it is dirty fluid, a worn converter clutch, or a hydraulic leak that prevents the converter from locking fully. Unlike a simple sensor code, P0741 often shows up as a subtle cruise complaint before it becomes an obvious transmission failure.