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P codepowertrainMedium severity

P1713TFT Sensor In Range Failure Low Value

The OBD2 code P1713 indicates that the Transmission Fluid Temperature (TFT) sensor is reporting a low value that is outside the expected range, suggesting a potential issue with the sensor or the transmission system

Definition

The OBD2 code P1713 indicates that the Transmission Fluid Temperature (TFT) sensor is reporting a low value that is outside the expected range, suggesting a potential issue with the sensor or the transmission system

Common causes

  • Faulty Transmission Fluid Temperature (TFT) sensor
  • Wiring issues or damaged connectors
  • Low transmission fluid level
  • Contaminated or degraded transmission fluid
  • Faulty transmission control module (TCM)
  • Short circuit in the TFT sensor circuit
  • Open circuit in the TFT sensor circuit
  • Poor ground connection for the TFT sensor

Common misdiagnoses

  • Transmission fluid level issues
  • Faulty transmission control module (TCM)
  • Wiring or connector problems
  • Faulty transmission fluid temperature (TFT) sensor
  • Incorrect transmission fluid type
  • Internal transmission failure
  • Engine control module (ECM) issues
  • Other sensor failures (e.g., pressure sensors)

Troubleshooting steps

  1. 1.Check for Additional Codes

    Use an OBD-II scanner to check for any other related trouble codes. This can provide more context and help identify if there are other issues affecting the transmission

  2. 2.Inspect Wiring and Connectors

    Examine the wiring and connectors associated with the TFT sensor. Look for signs of damage, corrosion, or loose connections that could affect the sensor's readings

  3. 3.Test the TFT Sensor

  4. 4.Use a multimeter to test the resistance of the TFT sensor. Compare the readings to the specifications provided in the vehicle's service manual

  5. 5.If the sensor is out of specification, it may need to be replaced

  6. 6.Check Transmission Fluid Level and Condition

  7. 7.Ensure that the transmission fluid is at the correct level. Low fluid levels can cause incorrect temperature readings

  8. 8.Inspect the fluid for contamination or burning, which could indicate other transmission issues

  9. 9.Inspect the Transmission Cooler

    If the transmission cooler is clogged or malfunctioning, it can affect the temperature readings. Check for blockages or leaks

  10. 10.Check for Ground Issues

    Ensure that the ground connections for the TFT sensor and the transmission control module (TCM) are secure and free of corrosion

  11. 11.Test the Transmission Control Module (TCM)

    If the sensor and wiring are functioning correctly, the issue may lie with the TCM. Check for software updates or faults in the module

  12. 12.Perform a Visual Inspection

    Look for any signs of physical damage to the transmission or related components that could affect the sensor's operation

  13. 13.Clear Codes and Test Drive

    After performing repairs or replacements, clear the trouble codes and take the vehicle for a test drive to see if the code returns

  14. 14.Consult a Professional

    If the issue persists after performing these steps, it may be necessary to consult a professional mechanic or technician who has experience with transmission diagnostics. By following these troubleshooting steps, you can identify and resolve the underlying issue causing the P1713 code