Coolant Bypass Valve A Performance
The coolant bypass valve A reports a performance condition.
Affected components
- Coolant bypass valve a
- Wiring harness
Common causes
- High likelihood: Valve mechanically stuck
- Medium likelihood: Scale buildup in coolant path
Diagnostic notes
- The malfunction indicator lamp may illuminate
- 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.