Exhaust Heat Exchanger Exhaust Bypass Valve A Position Sensor Circuit High
The position sensor for exhaust heat exchanger bypass valve A reports a circuit high condition. Heat recovery routing cannot be verified reliably.
Affected components
- Exhaust heat exchanger bypass valve a pos sensor
- Wiring harness
- Ecm
Common causes
- High likelihood: Signal wire shorted to B+
- Medium likelihood: Open position sensor
- Low likelihood: Connector pins corroded - high contact resistance
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.