P003C
A Camshaft Profile Actuator A Control Performance/Stuck Off Bank 1
The intake cam profile actuator (profile A, bank 1) does not engage when commanded — stays in low-lift profile. Often hydraulic pin sticking or low oil pressure.
The intake cam profile actuator (profile A, bank 1) does not engage when commanded — stays in low-lift profile. Often hydraulic pin sticking or low oil pressure.
Common causes
- high
Oil control valve stuck
One of the most commonly reported causes for this code — check this first.
Typical part cost: $90-1100
- medium
Low oil pressure
A plausible cause — test and verify before replacing parts.
Typical part cost: $90-1100
See all causes + fix costs
Create a free Wrenchify account to unlock the rest for P003C.
Unlock causesFree forever · No credit card
First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
Get the full step-by-step diagnosis
Create a free Wrenchify account to unlock the rest for P003C.
Unlock diagnosisFree forever · No credit card
Related codes
See related trouble codes
Create a free Wrenchify account to unlock the rest for P003C.
Unlock related codesFree forever · No credit card
Frequently asked questions
What does P003C mean?
P003C means "A Camshaft Profile Actuator A Control Performance/Stuck Off Bank 1". It is a generic OBD-II code that points to a fault in the fuel & air metering / auxiliary emission controls.
What are the most common causes of P003C?
oil control valve stuck; low oil pressure; carbon or debris buildup preventing free movement — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
Get the full P003C diagnosis for your vehicle
Year, make, model + step-by-step repair help — free plan included.