P0CE5Hybrid/EV Battery Pack Coolant Control Valve Position Sensor Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- P0CE5 means the position feedback of the battery coolant control valve is electrically valid, but the valve has not arrived where the controller sent it. In GM's 2016 Cadillac ELR tables the hybrid controller allows up to 22 s; if the feedback still shows a different position once the end-stop learn routine P1F56 has finished, 1280 of 1600 samples at 6.25 ms set a Type B code with the MIL on the second trip. In the 2011 Volt the same situation still fell under P0CE0. Causes include a valve that runs stiff because of deposits or cold, a weak actuator motor, a sensor that has moved away from its learned end stops, and air or low coolant in the loop. Battery cooling or heating then works less effectively. Circuit faults are P0CE6 and P0CE7, valve faults P0CE0 and P0CE1.
- What you may notice
- MIL after two trips (GM)
- Battery reaches its target temperature more slowly
- Likely causes
- LikelyValve stiff from deposits or low temperature
- PossibleActuator motor weak or gearing worn
- PossiblePosition sensor drifted from learned end stops
- RareAir or low coolant in the battery circuit
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €80 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.