P03EC
A Camshaft Profile Actuator C Control Circuit/Open Bank 1
Generic OBD-II
Common symptoms
What you'll notice
- Check the wiring and connections on the camshaft profile actuator
- Inspect and replace the camshaft position sensor if necessary
- Clean or replace the actuator solenoid valve
- Check for any obstructions or blockages in the oil passages related to the camshaft actuator
- If all else fails, consider replacing the camshaft actuator itself
Common causes
Most likely first
- Faulty camshaft profile actuator
- Wiring or connector issue in the control circuit for bank 1
- Open circuit in the camshaft profile actuator circuit of bank 1
- ECM (Engine Control Module) malfunction related to the camshaft profile actuator control
- Mechanical issue with the camshaft profile actuator in bank 1
How to diagnose & fix
Work through it in order
- Loss of power while driving
- Rough idle or stalling at low speeds
- Engine misfire or hesitation during acceleration
- Engine knocking or pinging noises
- Illuminated check engine light
Read & clear P03EC yourself
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