A Camshaft Profile Actuator A Control Circuit Low Bank 1
Low control voltage at the cam profile actuator (intake, profile A, bank 1). Typically a short to ground in the wiring or actuator coil.
Affected components
- Cam profile actuator
- Actuator wiring
Common causes
- High likelihood: Wiring shorted to ground
- Medium likelihood: Actuator coil shorted internally
- Low likelihood: Connector pins corroded - high contact resistance
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
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.