Coolant Pump D Control Circuit/Open
Coolant pump D reports a control circuit/open condition. Coolant circulation through the affected loop cannot be commanded reliably.
Affected components
- Coolant pump d
- Wiring harness
- Ecm
Common causes
- High likelihood: Open in control wire
- Medium likelihood: Open pump motor
- Low likelihood: Pin pushed back out of connector body
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.