P25CEIntake Camshaft Actuator Park Lock Control Circuit Low (Bank 2)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P25CE stands for a low signal on the lock control line of the bank 2 intake phaser: the wire or the solenoid winding has found a path to ground, or the module's output is stuck pulling low. Because the second bank's harness often runs along the back of the engine or under the intake manifold, chafing at brackets and heat damage are frequent findings. A grounded line may hold the lock solenoid energised permanently, leaving the pin withdrawn when the engine is shut down, which can cause a clatter on the next cold start. GM's 15OBDG01 table includes P25CE in the intake phaser fault groups that disable the other phaser monitors, without its own limits. Codes for both banks at once suggest a shared supply or low battery voltage rather than two bad solenoids.
- What you may notice
- Check engine lamp on
- Clatter at cold start
- Likely causes
- LikelyBank 2 harness chafed through at a bracket
- PossibleShorted winding in the bank 2 lock solenoid
- RareLow system voltage setting lock codes on both banks
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.