A Camshaft Profile Actuator A Control Stuck On Bank 2
What it means
P003F means the "A" camshaft profile actuator on bank 2 is stuck in its "on" (engaged) state — the variable valve-lift mechanism won't switch back, even though the ECM commanded it off. This is usually caused by a sticking solenoid or dirty oil jamming the actuator. Expect reduced power or rough running in part of the rev range; it does not cause a no-start.
Can I keep driving? Usually yes — the valve-lift system is stuck in one mode, so expect reduced power or rough running in part of the rpm range; repair to restore normal performance.
Real-world scan data
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
Common symptoms
What you'll notice
- Check-engine light on
- Reduced power or poor response in a certain rpm range
- Rough running or uneven idle
- Slightly worse fuel economy
Common causes
Most likely first
- Sticking camshaft profile control solenoid or actuator (bank 2)Likely
- Oil contamination or sludge jamming the actuator (low/dirty oil)Common
- Clogged oil passage or solenoid screenCommon
- Wiring or connector fault holding the actuator energizedLess often
- Failed ECM (rare)Less often
How to diagnose & fix
Work through it in order
- Check oil level and condition — dirty oil is a common cause of stuck cam actuators.
- Remove and clean or replace the cam profile control solenoid and its screen.
- Inspect the actuator wiring and connector.
- Verify the actuator moves freely and holds the correct resistance.
- Clear the code and retest under load.
FAQ
Quick answers
Is it safe to drive with P003F?+
Can I just clear P003F?+
Related codes
Read & clear P003F yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.