Turbocharger/Supercharger Bypass Valve C Control Circuit Low
Voltage on the third bypass valve control line is below the expected window. Usually a short to ground or a shorted solenoid coil.
Affected components
- Bypass valve c
- Bypass solenoid
- Wiring harness
Common causes
- High likelihood: Control wire shorted to ground
- Medium likelihood: Internal short in the solenoid coil
- Low likelihood: Connector pins corroded - high contact resistance
Possible symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
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.