P0A2D - Drive Motor 'A' Temperature Sensor Circuit High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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P0A2D Possible Causes

  • Faulty Hybrid Vehicle Motor
  • Hybrid Vehicle Motor harness is open or shorted
  • Hybrid Vehicle Motor circuit poor electrical connection

First diagnose P0A2D code

    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 P0A2D code

    Labor: 1.0

    The cost of diagnosing the P0A2D 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.

P0A2D Possible Symptoms

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

P0a2d Description

The resistance of the thermistor, which is enclosed in the motor temperature sensor No. 1, changes in accordance with the changes in the temperature of the motor. The lower the motor temperature, the higher the resistance of the thermistor. Conversely, the higher the temperature, the lower the resistance. The motor temperature sensor No. 1 is connected to the HV control ECU. The power voltage of 5 V is supplied from the MMT terminal of the HV control ECU to the motor temperature sensor No. 1 via resistor R. Because resistor R and the motor temperature sensor No. 1 are connected in series, the resistance changes with the changes in temperature of the motor, which causes the MMT terminal voltage to also change. Based on this signal, the HV control ECU limits the load in order to prevent the motor from overheating. Furthermore, the HV control ECU checks the motor temperature sensor No. 1 for a wiring malfunction and the sensor for malfunction.
OBDII Code P0a2d - Drive Motor 'A' Temperature Sensor Circuit High - AutoCodes.com

P0A2D More Information

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P0A2D Information for specific makes

  • P0A2D LEXUS Drive Motor 'A' Temperature Sensor Circuit High
  • P0A2D TOYOTA Drive Motor 'A' Temperature Sensor Circuit High

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