Turbocharger/Supercharger Bypass Valve C - Mechanical
The third bypass valve is mechanically jammed. Solenoid is energised correctly but the valve flap or disc does not move as expected.
Affected components
- Bypass valve c
- Actuator linkage
Common causes
- High likelihood: Carbon buildup blocks the valve flap
- Medium likelihood: Actuator linkage seized by corrosion
Possible symptoms
- Check engine light on
- Significant power loss / limp mode
- Possible blue or black smoke from exhaust
- Whistling or hissing sound from intake
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.