Drive Motor A Coolant Pump Control Circuit/Open
The drive motor A coolant pump reports a control circuit/open condition. Motor cooling may be impaired.
Affected components
- Drive motor a coolant pump
- Wiring harness
- Hybrid control module
Common causes
- High likelihood: Open in pump control wire
- Medium likelihood: Open pump motor
- Low likelihood: Pin pushed back out of connector body
Possible symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
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.