Engine-Codes - Generic - P0A37

P0A37 - Generator Temperature Sensor Circuit Range/Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P0A37 Possible Causes

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

How is the P0A37 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 P0A37 code

Labor: 1.0

The cost to diagnose the P0A37 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.
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Possible Symptoms

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

P0A37 Meaning

The motor temperature sensor No. 2 detects the temperature of the transaxle fluid. The resistance of the thermistor installed in the motor temperature sensor No. 2 varies with the changes in the transaxle fluid temperature. The construction in the motor temperature sensor No. 2 and how it is connected to the HV control ECU are the same as those of the motor temperature sensor No. 1.
Based on the signal provided by the motor temperature sensor No. 2, the HV control ECU limits the load to prevent the motor from overheating. Furthermore, the HV control ECU checks the motor temperature sensor No. 2 for a wiring malfunction and the sensor for malfunction.

More Information

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Information for specific makes

  • P0A37 LEXUS Generator Temperature Sensor Circuit Range/Performance
  • P0A37 TOYOTA Generator Temperature Sensor Circuit Range/Performance

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