P0A01 - Motor Electronics Coolant Temperature Sensor Circuit Range/Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

P0A01 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 do I fix code P0A01?

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.
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Cost of diagnosing the P0A01 code

Labor: 1.0

The cost of diagnosing the P0A01 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.

Possible Symptoms

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

P0A01 Description

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.
OBDII Code P0a01 - Motor Electronics Coolant Temperature Sensor Circuit Range/Performance - AutoCodes.com

More Information

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Information for specific makes

  • P0A01 BUICK Starter/Generator Control Module Coolant Temperature Sensor 1 Performance
  • P0A01 CADILLAC Starter/Generator Control Module Coolant Temperature Sensor 1 Performance
  • P0A01 CHEVROLET Starter/Generator Control Module Coolant Temperature Sensor 1 Performance
  • P0A01 DODGE Motor Electronics Coolant Temperature Sensor Circuit Range/Performance
  • P0A01 GMC Starter/Generator Control Module Coolant Temperature Sensor 1 Performance
  • P0A01 LEXUS Motor Electronics Coolant Temperature Sensor Circuit Range/Performance
  • P0A01 SATURN Starter/Generator Control Module Coolant Temperature Sensor 1 Performance
  • P0A01 TOYOTA Motor Electronics Coolant Temperature Sensor Circuit Range/Performance

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Repair Importance Level: 3
 
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