P0938

2017-10-10

Description:

  • The fault code P0938 indicates an issue with the hydraulic oil temperature sensor circuit. The hydraulic oil temperature sensor is responsible for monitoring the temperature of the hydraulic oil in the transmission. The Range/Performance aspect of the fault code suggests that the sensor circuit is experiencing a deviation or inconsistency in the expected temperature range or performance.

Possible Symptoms:

  • Illuminated check engine light

  • Inaccurate hydraulic oil temperature readings

  • Abnormal transmission behavior or shifting issues

  • Transmission overheating or fluid degradation

Possible Causes:

  • Faulty hydraulic oil temperature sensor

  • Open or short circuit in the hydraulic oil temperature sensor circuit

  • Wiring or connector problems in the sensor circuit

  • Malfunctioning transmission control module (TCM)

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:

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

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

  • Ensure the sensor is properly calibrated and positioned for accurate temperature readings.

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

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