Fuel Cooler Pump Control Circuit Low
Control voltage of the fuel cooler pump is below the expected range — short to ground or low-resistance fault.
Affected components
- Fuel cooler pump
- Pump wiring
Common causes
- High likelihood: Wiring shorted to ground
- Low likelihood: Connector pins corroded - high contact resistance
- Low likelihood: Harness chafing through insulation
Diagnostic notes
- The malfunction indicator lamp may illuminate
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.