P0940

2017-10-10

Description:

  • Hydraulic Oil Temperature Sensor Circuit High

Possible Symptoms:

  • Inspect the hydraulic oil temperature sensor for any signs of damage or malfunction, and replace if necessary.

  • Check the wiring and connections in the sensor circuit, and repair or replace as needed.

  • Ensure the sensor is receiving the proper voltage supply and ground connection.

  • Verify the functionality of the transmission control module (TCM) and replace if necessary.

Possible Causes:

  • The fault code P0939 indicates a high voltage condition in the hydraulic oil temperature sensor circuit. The hydraulic oil temperature sensor is responsible for monitoring the temperature of the transmission fluid. This fault code suggests that the sensor circuit is detecting a higher than expected voltage, indicating a potential issue with the sensor or the circuit itself.

Related Parts:

  • Hydraulic Oil Temperature Sensor: Hydraulic oil is needed for the gear lubrication system. Hydraulic oil temperature sensor measures the temperature of the oil. This car's sensor has a problem which may cause difficulty in shifting gears

Possible Solutions:

  • Faulty hydraulic oil temperature sensor

  • Short circuit or high resistance in the sensor circuit

  • Wiring or connector problems in the sensor circuit

  • Faulty transmission control module (TCM)

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