What does code P25D2 mean?

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25D2

P25D2Exhaust Camshaft Actuator Park Lock Control Circuit High Bank 1

P25D2 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the control circuit for the exhaust camshaft actuator park lock on bank 1. The park lock is a mechanical pin that locks the camshaft phaser in a fixed position when the engine is off, and the PCM expects a specific voltage range on the control circuit; a high voltage means the circuit is likely shorted to power, open, or the actuator solenoid has failed.

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.