Cylinder 5 Exhaust Valve Control Circuit Low
The engine control module has detected a low voltage condition in the control circuit of the cylinder 5 exhaust valve deactivation solenoid. A short to ground or low-side driver fault prevents proper actuation of the exhaust valve during cylinder deactivation events on bank-relevant cylinder 5.
Affected components
- Cylinder deactivation solenoid
- Engine wiring harness
- Ecm
Common causes
- High likelihood: Solenoid or wiring shorted to ground
- Medium likelihood: ECM low-side driver failed
- Low likelihood: Connector corrosion or pin damage
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.