Cylinder 4 Exhaust Valve Control Circuit/Open
The engine control module has detected an open or out-of-range circuit at the cylinder 4 exhaust valve deactivation solenoid. Cylinder 4 cannot be deactivated on the exhaust side until the circuit is restored.
Affected components
- Cylinder deactivation solenoid
- Engine wiring harness
- Ecm
Common causes
- High likelihood: Solenoid coil open
- Medium likelihood: Wiring or connector open
- Low likelihood: Pin pushed back out of connector body
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.