The automobile fault code U0197 indicates a problem with the Telephone Control Module (TCM). The most common symptom is the illumination of the Engine Light or Service Engine Soon Warning Light.

The cause of this fault code could be a faulty TCM, an open or shorted TCM harness, or a poor electrical connection in the TCM circuit. It is important to address this issue promptly as it can affect the vehicle’s performance and fuel efficiency.

The repair process involves visually inspecting the wiring harness and connectors, checking for damaged components, and looking for broken, bent, pushed out, or corroded connector pins. The repair time for this fault code is estimated to be 1.0 hour.

It is crucial to interpret the fault code correctly to ensure the proper repair is performed.

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, it could be a sign of the u0197 fault code. Here are some symptoms to look out for:

  • The automobile fault code U0197 has the following symptoms: Engine Light ON, Service Engine Soon Warning Light ON.

The automobile fault code u0197 can be caused by a faulty Telephone Control Module, open or shorted harness, or poor electrical connection.

  • The automobile fault code U0197 can be caused by a faulty Telephone Control Module.
  • It can also be caused by an open or shorted Telephone Control Module harness.
  • Additionally, a poor electrical connection in the Telephone Control Module circuit can also trigger this fault code.

Below are some possible fixes for the automobile fault code u0197, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code u0197, you need to check the possible causes listed above.
  • Visually inspect the related wiring harness and connectors.
  • Look for 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 U0197 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 U0197 fault code will depend on the hourly rate charged by the repair shop and the estimated repair time required to fix the issue.

The U0197 code is a Controller Area Network (CAN) fault code. CAN is a vehicle bus standard designed to interconnect automotive devices without a host computer.

The code sets when a periodic message from the Telephone Control Module has not been received.

CAN bus uses two dedicated wires for communication, CAN high and CAN low. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Telephone Control Module has not been received.

The U0197 code indicates that there is a lost communication with the Telephone Control Module.

What are the possible causes of the u0197 automobile fault code?

If you see the engine light on or the service engine soon warning light, it could be due to the u0197 fault code. This code is usually caused by a faulty Telephone Control Module, an open or shorted harness, or poor electrical connection in the module 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 wiring harness and connectors related to the Telephone Control Module?

If you’re experiencing an Engine Light ON or Service Engine Soon Warning Light, it could be due to a faulty Telephone Control Module or an open/shorted harness or poor electrical connection. To fix this issue, visually inspect the related wiring harness and connectors for any damaged components or broken, bent, pushed out, or corroded connector’s pins. Check the “Possible Causes” listed above for further guidance.

What should I do if I find damaged components or broken, bent, pushed out, or corroded connector’s pins during the inspection for the u0197 fault code?

If you find damaged components or broken, bent, pushed out, or corroded connector’s pins during the inspection for the u0197 fault code, you should visually inspect the related wiring harness and connectors. Check for any possible causes listed above and fix them accordingly. It is important to ensure that the Telephone Control Module harness is not open or shorted and that the circuit has a good electrical connection.

u0197 error fault code explained

If your engine light is on, it could be due to a faulty Telephone Control Module or an openshorted harness or poor electrical connection.

Visually inspect the wiring harness and connectors for damage or corrosion.

Check for broken, bent, or pushed out connector pins.

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