Engine-Codes - Generic - P0A04

P0A04 Code - Motor Electronics Coolant Temperature Sensor Circuit Intermittent

- Code Popularity: 2,066 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the P0A04 Code?

  • 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 to Fix the P0A04 Code?

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: 1.0

The cost to diagnose the P0A04 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P0A04 code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the P0A04 Code Mean?

The 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.

Motor Electronics Coolant Temperature Sensor Circuit Intermittent

|Need more information with the P0A04 code?

Need more information on how to fix the P0A04 code?
Get Access to Factory Service Manuals

|P0A04 code information for specific makes

  • P0A04 DODGE Motor Electronics Coolant Temperature Sensor Circuit Intermittent
  • P0A04 LEXUS Motor Electronics Coolant Temperature Sensor Circuit Intermittent
  • P0A04 TOYOTA Motor Electronics Coolant Temperature Sensor Circuit Intermittent

|Need help with a P0A04 code?

Get the P0a04 code diagnosed by a professional: Find a repair shop in your area