What does code P2852 mean?

Q: What does code P2852 mean?

Shift Fork Position Sensor C/D Correlation. P2852 means the transmission control module (TCM) has detected a mismatch between the signals from shift fork position sensors C and D, which monitor the movement of the shift forks inside a dual-clutch or automated manual transmission. The computer compares the two sensor readings and sets this code when their positions do not correlate within the expected range during a shift or while in gear.

DTC codes / P28xx · Transmission / P2852

P2852Shift Fork Position Sensor C/D Correlation

P2852 means the transmission control module (TCM) has detected a mismatch between the signals from shift fork position sensors C and D, which monitor the movement of the shift forks inside a dual-clutch or automated manual transmission. The computer compares the two sensor readings and sets this code when their positions do not correlate within the expected range during a shift or while in gear.

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.