What does code P287B mean?

Q: What does code P287B mean?

Shift Fork A Calibration Not Learned. P287B means the transmission control module (TCM) has not successfully completed the calibration learn procedure for shift fork A, which is the actuator that selects gears on one side of a dual-clutch or automated manual gearbox. The computer commands the fork through its travel range and compares the expected position against the feedback signal, and it stores this code when the learned values are missing, out of range, or the routine cannot finish.

DTC codes / P28xx · Transmission / P287B

P287BShift Fork A Calibration Not Learned

P287B means the transmission control module (TCM) has not successfully completed the calibration learn procedure for shift fork A, which is the actuator that selects gears on one side of a dual-clutch or automated manual gearbox. The computer commands the fork through its travel range and compares the expected position against the feedback signal, and it stores this code when the learned values are missing, out of range, or the routine cannot finish.

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.