What does code P0881 mean?

Q: What does code P0881 mean?

TCM Power Input Signal Range/Performance. P0881 means the transmission control module (TCM) has detected that its main power input signal is outside the expected range or is not performing correctly, so the TCM cannot trust its own power supply. The computer sets this code when the voltage on the TCM power feed is too low, too high, or unstable during key-on or running conditions, which can prevent the transmission from shifting properly or entering limp mode.

DTC codes / P08xx · Transmission / P0881

P0881TCM Power Input Signal Range/Performance

P0881 means the transmission control module (TCM) has detected that its main power input signal is outside the expected range or is not performing correctly, so the TCM cannot trust its own power supply. The computer sets this code when the voltage on the TCM power feed is too low, too high, or unstable during key-on or running conditions, which can prevent the transmission from shifting properly or entering limp mode.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaTransmission

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.