Turbocharger Boost Control Position Sensor B Circuit Range/Performance
Position sensor B is electrically intact, but the reading does not track sensor A or the actuator-command model. Often a misaligned redundant sensor or aged element on a second turbo.
Affected components
- Turbo actuator position sensor b
- Turbocharger
Common causes
- High likelihood: Sensor mounting misaligned after service
- Medium likelihood: Aged Hall element
- Low likelihood: Sensor element aged beyond calibration window
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.