Turbocharger/Supercharger Boost Control A Circuit Intermittent/Erratic
Intermittent dropouts or noise on boost control A circuit. Loose connector, partial wiring break, or solenoid degrading.
Affected components
- Boost control solenoid
- Connector
Common causes
- High likelihood: Connector loose or corroded
- Medium likelihood: Wiring chafed inside loom
- Low likelihood: Connector with intermittent contact under vibration
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
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.