What does code P25DF mean?

Q: What does code P25DF mean?

A Camshaft Position Control Performance Bank 1. P25DF indicates that the powertrain control module (PCM) has detected a performance problem with the camshaft position control system on bank 1, meaning the variable cam timing mechanism is not achieving the commanded position within the expected time or range. The PCM monitors the camshaft position sensor signal against the commanded target and sets this code when the actual cam angle deviates excessively or responds too slowly.

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25DF

P25DFA Camshaft Position Control Performance Bank 1

P25DF indicates that the powertrain control module (PCM) has detected a performance problem with the camshaft position control system on bank 1, meaning the variable cam timing mechanism is not achieving the commanded position within the expected time or range. The PCM monitors the camshaft position sensor signal against the commanded target and sets this code when the actual cam angle deviates excessively or responds too slowly.

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.