Engine and gearbox (P)
P001A: Camshaft Profile Actuator Circuit Issue
This code indicates an open circuit in the camshaft profile actuator for bank 1. The actuator controls the camshaft lift profile and cannot function properly due to the circuit issue.
Checked by a licensed car technician · last reviewed 29 September 2026
Symptoms
- Engine warning light on
- Reduced engine performance
- Rough idling
- Possible stalling
Common causes
- Wiring break or unplugged connector
- Actuator coil open
- Pin pushed back out of connector body
How to check it yourself
- Inspect wiring and connectors for damage or disconnection
- Check actuator coil resistance with a multimeter
- Ensure all pins are seated properly in the connector
Can I keep driving?
The car can be driven, but performance may be reduced.
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