[SOLVED] U0138 Code: Fixing Lost Communication With Terrain Control Module

If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to the automobile fault code: u0138. This code indicates a problem with the All-Terrain Control Module, which could be faulty or have a poor electrical connection. It could also be due to an open or shorted harness.

The importance of fixing this issue lies in the fact that it could affect the vehicle’s performance and safety.

The repair difficulty is moderate, and it could take around 1.0 hour to fix. To interpret the fault code, you need to check the possible causes listed above and visually inspect the related wiring harness and connectors.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

If you notice the Engine Light ON (or Service Engine Soon Warning Light), it could be a sign of u0138 fault code. Here are the symptoms to look out for:

  • The automobile fault code U0138 can cause several symptoms, including the engine light turning on or the service engine soon warning light appearing.
  • Other symptoms may include issues with the transmission, problems with the ABS system, and difficulty starting the vehicle.
  • Additionally, the vehicle may experience reduced power or acceleration, and the fuel efficiency may decrease.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle.

The automobile fault code u0138 can be caused by a faulty module, open or shorted harness, or poor electrical connection.

  • The automobile fault code u0138 can be caused by a faulty All-Terrain Control Module.
  • It can also be caused by an open or shorted All-Terrain Control Module harness.
  • Additionally, a poor electrical connection in the All-Terrain Control Module circuit can also trigger this fault code.

Below are some possible fixes for the automobile fault code u0138, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code u0138, first, check the possible causes listed above.
  • Then, visually inspect the related wiring harness and connectors.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The automobile fault code U0138 can be diagnosed and fixed within an estimated repair time of 1.0 hour.

The cost of repair is influenced by the repair time, which is commonly charged between $75 and $150 per hour by most auto repair shops.

Therefore, the total cost of diagnosis and fixing the U0138 fault code will depend on the hourly rate charged by the repair shop and the time taken to complete the repair.

The U0138 code is a Controller Area Network (CAN) communication fault code.

It means that the All-Terrain Control Module is not communicating with other devices on the CAN bus.

The CAN bus uses two wires for communication, and the U0138 code sets when a periodic message from the All-Terrain Control Module is not received.

This fault code can cause issues with the vehicle’s stability control system and other safety features.

It is important to diagnose and repair this issue promptly to ensure safe driving conditions.

What are the possible causes of the u0138 automobile fault code?

If you see the engine light on or the service engine soon warning light, it could be due to the u0138 fault code. This code is caused by a faulty All-Terrain Control Module, an open or shorted harness, or poor electrical connection in the circuit. To fix this issue, you should visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

How can I visually inspect the related wiring harness and connectors to fix the u0138 fault code?

If you’re experiencing an engine light or service engine soon warning light with a u0138 fault code, it could be due to a faulty All-Terrain Control Module, an open or shorted harness, or poor electrical connection. To fix this issue, start by visually inspecting the related wiring harness and connectors. Check for any damaged components and look for broken, bent, pushed out, or corroded connector pins.

What are the signs that the All-Terrain Control Module harness is open or shorted, causing the u0138 fault code?

If the engine light is on or the service engine soon warning light is illuminated, it could be a sign of a faulty All-Terrain Control Module or an open or shorted All-Terrain Control Module harness. The cause could also be a poor electrical connection in the All-Terrain Control Module circuit. To fix the issue, it is recommended to visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

u0138 error fault code explained

If your engine light is on, it could be due to a faulty All-Terrain Control Module, an open or shorted harness, or poor electrical connection.

Check for damaged components and inspect the wiring harness and connectors for any issues.

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