Turbocharger Bypass Valve Control Circuit Low
The bypass valve solenoid control circuit reports a voltage below threshold, indicating a short to ground or open driver. The ECU disables boost control until the fault clears.
Affected components
- Turbocharger bypass valve
- Wastegate solenoid
- Wiring harness
Common causes
- High likelihood: Signal wire shorted to ground
- Medium likelihood: Solenoid internal short
- 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
- 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.