Battery Charger Coolant Control Valve Control Circuit/Open
The battery charger coolant control valve reports a control circuit/open condition. The on-board charger negotiates voltage, current and safety with the EVSE; a fault interrupts charging or limits it to AC slow-charge despite a DC fast charger being attached.
Affected components
- Battery charger coolant valve
- Wiring harness
- Bms
Common causes
- High likelihood: Open in valve control wire
- Medium likelihood: Open valve actuator
- Low likelihood: Pin pushed back out of connector body
Possible symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.