P0C74 OBD-II: Motor Electronics Coolant Pump "B" Control Performance
P0C74 Severity
Should you fix P0C74 yourself?
Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.
Proper diagnosis will save you time and money on unnecessary repairs.
Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.
What causes OBD-II fault code P0C74?
The Inverter/Converter Assembly has its own water pump for its cooling system. This water pump is electronically controlled and monitored by the Power Management Control Module (HV CPU). If the HV CPU detects failure of the water pump, code P0C74 will be set.
Ask our experts about P0C74.
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