Hybrid/EV Battery Pack Coolant Control Valve B Performance/Stuck Off
The HV battery pack coolant control valve B reports a performance/stuck off condition.
Affected components
- Hv battery pack coolant valve b
- Wiring harness
- Bms
Common causes
- High likelihood: Valve stuck closed
- Medium likelihood: Actuator failed
- Low likelihood: Carbon or debris buildup preventing free movement
Possible symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
Related codes
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.