What does code P25E3 mean?

Q: What does code P25E3 mean?

B Camshaft Position - Stuck In Locked Position Bank 1. This code indicates that the engine computer has detected a fault in the variable valve timing system for the bank 1 camshaft, specifically that the camshaft phaser is stuck in its fully locked or retarded position. The computer commands the phaser to change timing but sees no change in camshaft position, so it sets this code and typically disables variable valve timing to protect the engine.

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25E3

P25E3B Camshaft Position - Stuck In Locked Position Bank 1

This code indicates that the engine computer has detected a fault in the variable valve timing system for the bank 1 camshaft, specifically that the camshaft phaser is stuck in its fully locked or retarded position. The computer commands the phaser to change timing but sees no change in camshaft position, so it sets this code and typically disables variable valve timing to protect the engine.

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.