OBD-II code · Powertrain (generic, extended)
P2C25 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.
Is it safe to drive with P2C25?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal wire shorted to B+
- PossibleOpen position sensor
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Exhaust Heat Exchanger Bypass Valve A Pos Sensor, Wiring Harness, Ecm
Related codes
- P2C22Exhaust Heat Exchanger Exhaust Bypass Valve A Position Sensor Circuit
- P2C23Exhaust Heat Exchanger Exhaust Bypass Valve A Position Sensor Performance
- P2C24Exhaust Heat Exchanger Exhaust Bypass Valve A Position Sensor Circuit Low
- P2C26Fuel Injector Group B Supply Sense Circuit
- P2C27Fuel Injector Group B Supply Sense Circuit Low
- P2C28Fuel Injector Group B Supply Sense Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.