Possible Causes
- Electrical Cause
- Yes
- Mechanical Cause
- Yes
- Control Module Cavity
- Circuit reference - I_A_CPP -
- Circuit reference - O_T_VCLNTP -
- Circuit reference - O_5VCLNTP -
- 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