Turbocharger/Supercharger Boost Control A Circuit/Open
Open circuit at the boost control solenoid/actuator A. The ECU cannot drive the wastegate or VGT vanes.
Affected components
- Boost control solenoid
- Actuator wiring
Common causes
- High likelihood: Wiring break or unplugged connector
- Medium likelihood: Solenoid coil open
- Low likelihood: Pin pushed back out of connector body
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.