What does code P25CB mean?

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25CB

P25CBIntake Camshaft Actuator Park Lock Control Circuit Low Bank 1

P25CB indicates that the powertrain control module has detected a low-voltage condition on the intake camshaft actuator park lock control circuit for bank 1. The park lock is an electrically controlled pin that mechanically locks the camshaft phaser in its base timing position when the engine is off or during certain operating conditions, and this code sets when the circuit voltage falls below the expected threshold.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

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