P0CE7Hybrid/EV Battery Pack Coolant Control Valve Position Sensor Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- 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.
- What you may notice
- MIL after two trips (GM)
- Valve position shown near 100 % in live data
- Likely causes
- LikelySensor ground wire interrupted
- PossibleSignal wire shorted to reference or battery voltage
- RareWorn sensor track in the actuator
- 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 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.