P0CE6Hybrid/EV Battery Pack Coolant Control Valve Position Sensor Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0CE6 reports that the position feedback of the battery coolant control valve has fallen below its permitted window. GM expresses the signal relative to the reference voltage: the 2011 Chevrolet Volt fails it below 5 % in 40 of 50 samples at 100 ms, the 2016 Cadillac ELR below 28 % in 640 of 800 samples at 6.25 ms, a value under the lowest end stop the ELR accepts during learning (just over 30 %). Both are Type B, so the MIL comes on after two trips, and while the code is active the valve performance test is suspended. A short of the signal wire to ground, a missing reference voltage or a defective sensor track in the actuator are the likely causes. The controller can then no longer position the valve reliably. The high fault is P0CE7, plausibility P0CE5.
- What you may notice
- MIL after two trips (GM)
- Valve position shown as near 0 % in live data
- Likely causes
- LikelyFeedback signal wire shorted to ground
- PossibleSensor reference voltage missing or open
- PossibleWorn or defective 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.