Actuator Supply Voltage C Circuit Low
The third actuator supply rail is below the expected voltage. Battery weakness, blown fuse, or excessive current draw collapses the supply.
Affected components
- Actuator supply c
- Charging system
Common causes
- High likelihood: Load on the rail shorted to ground
- Medium likelihood: Battery condition causes voltage to drop
- Low likelihood: Connector pins corroded - high contact resistance
Diagnostic notes
- The malfunction indicator lamp may illuminate
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.