Engine-Codes - Lexus - P0A2D LEXUS

P0A2D LEXUS Code - Drive Motor 'A' Temperature Sensor Circuit High

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

|P0A2D LEXUS code possible causes

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

|How is the P0A2D LEXUS 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 P0A2D LEXUS code

Labor: 1.0

The cost to diagnose the P0A2D LEXUS 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 P0A2D LEXUS code possible symptoms?

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

|What is P0A2D LEXUS code meaning?

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.

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