Powertrain
generic / SAE
P03F3
B Camshaft Profile Actuator C Control Circuit High (Bank 1)
Cam profile actuator A position C drive line stuck high — short to B+. The cam phaser actuator adjusts intake/exhaust timing under load — a stuck or slow phaser kills mid-rpm torque and can throw correlation codes between cam and crank.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number3 / F3
Possible causes
- Short to B+ high
- Connector pins corroded - high contact resistance low
- Supply wire pinched against B+ source low
Symptoms
- Check engine light on
- Power loss especially in mid-rpm range
- Possible rough idle or stalling
- Increased fuel consumption
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 120–800 €
- Estimated time: 0.7–3 h
- Component: camshaft position actuator
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012