P0CE1Hybrid/EV Battery Pack Coolant Control Valve A Stuck On
- 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
- P0CE1 reports that coolant control valve A of the battery circuit remains in its active position although the controller commanded a change. Manufacturers phrase it differently: Mercedes hybrid battery management speaks of a shutoff valve that does not open, Volvo of a valve stuck on in the BECM of the XC90 T8 from model year 2016. Volvo's TJ 32903 first advised erasing the intermittent entry and test driving, a later revision a software upgrade. For the 2020 Audi Q5 TFSI e, bulletins 2059530 and 80C9 state that the temperature difference limits used to judge the valve were too tight; new software followed (also TSB 2067066). Bentley's TPI 2058049 for the Bentayga Hybrid starts with the coolant level of the battery circuit and an actuator test of changeover valve N632. P0CE0 is the opposite fault.
- What you may notice
- MIL on, usually without driving symptoms
- Battery cooled or heated longer than needed
- Likely causes
- LikelyMonitoring limits or software too strict (Audi, Volvo updates)
- PossibleLow coolant level or air in the battery coolant circuit
- PossibleChangeover valve mechanically stuck
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.