What does code P25E1 mean?

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25E1

P25E1A Camshaft Position - Unable to Achieve Locked Position Bank 2

This code means the engine computer commanded the bank 2 camshaft phaser to lock into its base timing position and the phaser failed to confirm that it actually locked. The computer monitors camshaft position relative to crankshaft position and sets P25E1 when the measured cam angle does not settle into the expected locked window within the calibrated time.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

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.