Turbocharger Boost Control Position Sensor Circuit Low
The turbocharger position sensor signal is below the lower limit — short to ground or sensor at zero stop.
Affected components
- Turbocharger position sensor
- Turbocharger actuator wiring
Common causes
- High likelihood: Signal wire shorted to ground
- Medium likelihood: Sensor failed low
- 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
- Reduced-power or limp mode may occur
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.