What does code P280A mean?

Q: What does code P280A mean?

Transmission Range Sensor A Circuit Not Learned. P280A means the transmission control module (TCM) has not successfully completed the learn or adaptation procedure for the Transmission Range Sensor A circuit, so it cannot trust the sensor's reported gear position. The computer has detected that the sensor's voltage or signal pattern falls outside the expected learned values, or that the learn routine was never completed after a repair or battery disconnect.

DTC codes / P28xx · Transmission / P280A

P280ATransmission Range Sensor A Circuit Not Learned

P280A means the transmission control module (TCM) has not successfully completed the learn or adaptation procedure for the Transmission Range Sensor A circuit, so it cannot trust the sensor's reported gear position. The computer has detected that the sensor's voltage or signal pattern falls outside the expected learned values, or that the learn routine was never completed after a repair or battery disconnect.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

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.