Cylinder 1 Deactivation Circuit Low Voltage
The engine control module has detected low voltage or a short to ground in the cylinder 1 deactivation control circuit.
Affected components
- Cylinder deactivation solenoid
- Engine wiring harness
Common causes
- High likelihood: Wiring shorted to ground
- Medium likelihood: Solenoid internally shorted
- Low likelihood: Connector pins corroded - high contact resistance
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
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.