P0CE7 code meaning
Hybrid/EV Battery Pack Coolant Control Valve Position Sensor Circuit High
Powertrain system Generic code P0Cxx codes Check engine light
What P0CE7 means
P0CE7 is the high-side fault of the battery coolant control valve position feedback. GM sets it when the signal exceeds 95 % of the reference voltage in the 2011 Chevrolet Volt (40 of 50 samples at 100 ms) or 72 % in the 2016 Cadillac ELR (640 of 800 samples at 6.25 ms), in both cases with system voltage above 9 V or 10.2 V and rated Type B, so the MIL lights on the second trip. The ELR value sits just above the highest end stop it accepts while learning (about 69.5 %). An interrupted sensor ground, a signal line shorted to the reference or to battery voltage, or a worn sensor track are typical. The coolant path can then no longer be confirmed, and thermal conditioning may be restricted. The low counterpart is P0CE6.
P0CE7 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0CE7
- MIL after two trips (GM)
- Valve position shown near 100 % in live data
Common causes of P0CE7
- Most likelySensor ground wire interrupted
- PossibleSignal wire shorted to reference or battery voltage
- Less likelyWorn sensor track in the actuator
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 P0CE7 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. |
| E7 | The exact fault in that area. |
What to do next
- Note P0CE7 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 P0CE7
What does P0CE7 mean?
P0CE7 means "Hybrid/EV Battery Pack Coolant Control Valve Position Sensor Circuit High". P0CE7 is the high-side fault of the battery coolant control valve position feedback. It is a generic code, so it means the same on every make.
Is it safe to drive with P0CE7?
Drive gently and only to a workshop. With P0CE7 the car can go into limp mode (reduced power) to protect itself.
Will P0CE7 fail an emissions test?
Yes, it can. P0CE7 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 P0CE7 to fix?
Difficulty: hard. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P0CE7 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.