What does code P286A mean?

Q: What does code P286A mean?

Shift Fork E Unrequested Movement. P286A indicates that the transmission control module (TCM) has detected unrequested movement of shift fork E, meaning the fork has moved from its commanded position without a corresponding actuator command. The TCM monitors fork position through sensors and compares actual movement against expected movement, setting this code when the discrepancy exceeds calibrated limits.

DTC codes / P28xx · Transmission / P286A

P286AShift Fork E Unrequested Movement

P286A indicates that the transmission control module (TCM) has detected unrequested movement of shift fork E, meaning the fork has moved from its commanded position without a corresponding actuator command. The TCM monitors fork position through sensors and compares actual movement against expected movement, setting this code when the discrepancy exceeds calibrated limits.

SystemPowertrain

Code typeGeneric (all makes)

SeverityHigh

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.