P0A04 - Motor Electronics Coolant Temperature Sensor Circuit Intermittent
P0A04 Possible Causes
- Faulty Motor Electronics Coolant Temperature Sensor
- Motor Electronics Coolant Temperature Sensor harness is open or shorted
- Motor Electronics Coolant Temperature Sensor circuit poor electrical connection
How is the P0A04 code repair?Start by checking 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.
What is the cost to diagnose the P0A04 code
Labor: 1.0The cost to diagnose the P0A04 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
How much do you know about cars?
Take the AutoCodes.com automotive tests and turbo-charge your car repair knowledge
- Engine Light ON (or Service Engine Soon Warning Light)
P0A04 MeaningThe power management control Electronic Control Unit (ECU) detects HV coolant temperature using the coolant temperature sensor built into the inverter with converter assembly. The power management control ECU uses signals from the coolant temperature sensor to check the effectiveness of the inverter cooling system. If necessary, the power management control ECU will limit inverter output to help prevent inverter overheating. The power management control ECU also detects malfunctions in the sensor based on the HV coolant temperature sensor values. The inverter with converter assembly detects malfunctions in the HV coolant temperature sensor and its wiring.
More InformationNeed more information on how to fix the P0A04 code?
Get Access to Factory Service Manuals