P0DE8
Hybrid/EV Battery Pack Coolant Control Valve C Control Circuit/Open
Generic OBD-II
Common symptoms
What you'll notice
- Check and repair any wiring or connectors related to the hybrid/EV battery pack coolant control valve C control circuit.
- Inspect the hybrid/EV battery pack coolant control valve C for any signs of damage or malfunction, and replace if necessary.
- Inspect the hybrid/EV battery pack coolant system for any leaks or blockages, and address any issues found.
Common causes
Most likely first
- Malfunction or failure of the hybrid/EV battery pack coolant control valve
- Faulty wiring or connections in the C control circuit
- Open circuit in the C control circuit
- Issues with the hybrid/EV battery pack coolant control module
- Malfunctioning sensor or sensor circuit related to the coolant control valve
How to diagnose & fix
Work through it in order
- Warning lamp illuminated on the dashboard
- Reduced power or performance of the vehicle
- Inefficient or decreased fuel economy
- Difficulty starting the engine or engine stalling
- Overheating of the hybrid/EV battery pack
Read & clear P0DE8 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.