P0CE5 code meaning
Hybrid/EV Battery Pack Coolant Control Valve Position Sensor Circuit Range/Performance
Powertrain system Generic code P0Cxx codes Check engine light
What P0CE5 means
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.
P0CE5 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyHard
- Typical labor0.5 to 3 hours
- Clears after repairAfter a drive cycle
Symptoms of P0CE5
- MIL after two trips (GM)
- Battery reaches its target temperature more slowly
Common causes of P0CE5
- Most likelyValve stiff from deposits or low temperature
- PossibleActuator motor weak or gearing worn
- PossiblePosition sensor drifted from learned end stops
- Less likelyAir or low coolant in the battery circuit
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Hv battery pack coolant valve position sensorWiring harnessBms
What each part of P0CE5 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| C | Area: hybrid propulsion. |
| E5 | The exact fault in that area. |
What to do next
- Note P0CE5 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0CE5
What does P0CE5 mean?
P0CE5 means "Hybrid/EV Battery Pack Coolant Control Valve Position Sensor Circuit Range/Performance". 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. It is a generic code, so it means the same on every make.
Is it safe to drive with P0CE5?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0CE5 fail an emissions test?
Yes, it can. P0CE5 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0CE5 to fix?
Difficulty: hard. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P0CE5 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.