Motor Electronics Coolant Pump ‘B’ Control Performance
Table of contents
P0C74 TOYOTA Possible Causes
- Faulty Inverter cooling system
- Inverter cooling system harness is open or shorted
- Inverter cooling system circuit poor electrical connection
- Inverter water pump assembly
- Power management control ECU
How do I fix code P0C74 TOYOTA?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P0C74 TOYOTA code
The cost of diagnosing the P0C74 TOYOTA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0C74 TOYOTA Description
The inverter water pump assembly transmits rotation speed information to the power management control ECU (HV CPU). The power management control ECU (HV CPU) monitors the speed and detects malfunctions.