Turbocharger Boost Control Position Sensor B Circuit High
Position sensor B signal voltage above the upper limit — short to reference voltage or open signal return.
Affected components
- Turbo actuator position sensor b
- Sensor wiring
Common causes
- High likelihood: Signal wire shorted to reference voltage
- Low likelihood: Connector pins corroded - high contact resistance
- Low likelihood: Supply wire pinched against B+ source
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
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.