Engine Coolant Bypass Valve A Position Sensor Circuit
The position sensor on the coolant bypass valve A returns no usable signal. Closed-loop control of bypass position is lost.
Affected components
- Bypass position sensor a
- Wiring harness
Common causes
- High likelihood: Open sensor element
- Medium likelihood: Corroded sensor connector
Diagnostic notes
- The malfunction indicator lamp may illuminate
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.