Possible Causes
- Electrical Cause
- Mechanical Cause
- Control Module Cavity
- Circuit reference - O_T_VCLNTP -
- Monitor Description
- Pump actuation fault - shroud unable to meet setpoint with position stuck open, hence pump provides full flow continuously
- Prioritized List of Possible Causes
- Variable coolant pump slow to respond due to high seal friction - Do not replace the coolant pump
- Excessive shroud friction due to internal lip seal geometry no longer adhering to specifications
- Variable coolant pump position sensor fault
- Variable coolant pump control solenoid sensor fault