Engine Coolant Bypass Valve A Position Sensor Stop/Minimum Stop Performance
During self-calibration the bypass valve A position sensor never reached the minimum mechanical stop. The position reference cannot be zeroed.
Affected components
- Coolant bypass valve a
- Position sensor
Common causes
- High likelihood: Sediment prevents valve from reaching minimum stop
- Medium likelihood: Sensor not aligned with valve shaft
Diagnostic notes
- The malfunction indicator lamp may illuminate
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.