P0CE1
Hybrid/EV Battery Pack Coolant Control Valve A Stuck On
Generic OBD-II
Common symptoms
What you'll notice
- Check the electrical connections of the Hybrid/EV Battery Pack Coolant Control Valve and ensure they are securely connected.
- Inspect the coolant lines connected to the Hybrid/EV Battery Pack Coolant Control Valve for any leaks or blockages.
- Test the Hybrid/EV Battery Pack Coolant Control Valve for proper functionality and replace if necessary.
- Inspect the wiring harness of the Hybrid/EV Battery Pack Coolant Control Valve for any damages or frayed wires and repair or replace as needed.
Common causes
Most likely first
- Faulty hybrid/EV battery pack coolant control valve
- Stuck open coolant control valve
- Electrical wiring or connector issue related to the coolant control valve
How to diagnose & fix
Work through it in order
- Overheating of the hybrid or electric vehicle (EV) battery
- Decreased efficiency or range
- Poor acceleration or loss of power
- Warning indicator light illuminates
Read & clear P0CE1 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.