Engine Coolant Pump Stuck/Stalled
The engine coolant pump is mechanically stuck or has stalled. Coolant circulation through the engine is severely reduced or absent.
Affected components
- Engine coolant pump
- Engine coolant loop
Common causes
- High likelihood: Pump impeller jammed by debris
- Medium likelihood: Motor seized
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.