Engine Coolant Bypass Valve B Position Sensor Circuit
The ECM detects a generic fault on the engine coolant bypass valve B position sensor circuit. Reading cannot be used reliably for control.
Affected components
- Engine coolant bypass valve b position sensor
- Wiring harness
- Ecm
Common causes
- High likelihood: Sensor failed
- Medium likelihood: Wiring or connector fault
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.