VOLVO
ECM-P0CE300 - Hybrid/EV Battery Pack Coolant Control Valve "A" Control Circuit High. General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
1 modelV60 (2011–)
Show models by year and engine (2)
What does this fault code mean?
The code indicates a control circuit for the battery cooling valve that is too high, but the condition is that the signal wire between the engine control module and the valve is shorted or has a break.
Possible causes
- Damaged valve
- Short circuit or break in the wiring to the valve
What you can do
- 1Check that the fuses are intact. The locations are shown in the instruction manual or on the fuse list
- 2Switch the car off, restart it and read off the fault code again to see whether it returns
- 3Where possible, check on a test drive that the air conditioning and HYBRID drive mode work
- 4Have a workshop check the valve and its wiring. The hybrid system is a workshop task
- 5Do not measure or disconnect the hybrid system's wiring yourself
Symptoms you may notice3
- The combustion engine is active in HYBRID mode more often than normal, or all the time
- Temperature control and air conditioning do not work
- A message and a warning symbol are shown in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.