Engine and gearbox (P)
P001F: Camshaft Profile Actuator Circuit High
The engine control unit has detected excessively high voltage in the control circuit for the camshaft profile actuator on bank 2. This actuator adjusts the camshaft timing to optimise engine performance.
Checked by a licensed car technician · last reviewed 29 September 2026
Symptoms
- Engine warning light on
- Reduced engine performance
- Poor fuel economy
- Rough idling
Common causes
- Wiring shorted to battery voltage
- Corroded connector pins
- Pinched supply wire
How to check it yourself
- Inspect wiring for visible damage or short circuits
- Check connector pins for corrosion or damage
- Test voltage in the actuator circuit with a multimeter
Can I keep driving?
The car can be driven, but performance may be reduced. Avoid heavy acceleration.
General guidance, not a professional inspection. Confirm faults with measurements before buying parts, and use a qualified mechanic for brakes, steering, fuel leaks, airbags, and other safety-critical work. Terms and disclaimer