B Camshaft Profile Actuator Position Sensor A Circuit Bank 1
The position sensor A of camshaft profile actuator on the exhaust side of bank 1 reports a circuit condition. Cam profile selection feedback cannot be measured reliably.
Affected components
- B camshaft profile actuator pos sensor a b1
- Wiring harness
- Ecm
Common causes
- High likelihood: Position sensor failed
- Medium likelihood: Wiring or connector fault
Possible symptoms
- Check engine light on
- Power loss especially in mid-rpm range
- Possible rough idle or stalling
- Increased fuel consumption
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- Reduced-power or limp mode may occur
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.