P25D5Exhaust Camshaft Actuator Park Lock Control Circuit High (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
- P25D5 closes this series: the bank 2 exhaust phaser's lock control signal sits above its allowed voltage, pointing to a short to battery or ignition voltage, a return path tied to supply, or a defective output in the module. The protected driver then stops switching, and the lock solenoid stays without command until the next key cycle or until the fault vanishes. If P25D5 shows up together with high codes on other actuators, a shared harness fault or a module problem is more likely than a bad solenoid. There is no public manufacturer documentation for P25D5; the description draws on CARB's monitoring rules for variable valve timing and output components and on the design of locking phasers. Driveability suffers only mildly, but emissions and fuel use rise.
- What you may notice
- Check engine lamp on
- Slightly higher fuel consumption
- Likely causes
- LikelyBank 2 exhaust lock wire shorted to battery or ignition voltage
- PossibleHarness fault affecting several actuator lines
- RareDefective output in the engine control module
- 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 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.