Turbocharger Bypass Valve Control Circuit
The ECU detects an electrical fault in the turbocharger bypass (wastegate) valve control circuit. Voltage or current measured on the solenoid output deviates from expected values during commanded actuation.
Affected components
- Turbocharger bypass valve
- Wastegate solenoid
- Wiring harness
- Ecm
Common causes
- High likelihood: Bypass solenoid failed
- Medium likelihood: Open or shorted wiring to solenoid
- Low likelihood: Connector corrosion or poor contact
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
- This code can affect emissions
- A drive cycle may be required after repair
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.