[SOLVED] U1191 Code: Upper Switch Bank Communication Lost – Fix Now!

The automobile fault code U1191 indicates a problem with the Upper Switch Bank in the vehicle.

The most common symptom is the Engine Light turning on or the Service Engine Soon Warning Light.

The cause of this issue could be a faulty Upper Switch Bank, an open or shorted Upper Switch Bank harness, poor electrical connection in the Upper Switch Bank circuit, or a faulty Cluster. It is important to address this issue promptly as it can lead to further damage to the vehicle.

The repair time for this issue is estimated to be around 1.0.

To fix this problem, one should visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

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 u1191 fault code.

Here are the symptoms to look out for:

  • The U1191 fault code in an automobile can cause the following symptoms: Engine Light ON, Service Engine Soon Warning Light ON.
  • These symptoms can indicate a problem with the communication between the engine control module and the instrument cluster.
  • The code may also cause issues with the vehicle’s speedometer, tachometer, and other gauges.
  • Additionally, the code may cause the vehicle to enter a limp mode, which limits the engine’s power and speed.
  • It is important to address these symptoms promptly to avoid further damage to the vehicle.

The automobile fault code u1191 can be caused by a faulty upper switch bank, open or shorted harness, poor electrical connection, or a faulty cluster.

  • The automobile fault code U1191 can be caused by a faulty upper switch bank.
  • It can also be caused by an open or shorted upper switch bank harness.
  • Another possible cause is a poor electrical connection in the upper switch bank circuit.
  • Lastly, a faulty cluster can also trigger the U1191 fault code.

To fix the u1191 automobile fault code, check the possible causes and inspect the related wiring harness and connectors for any damage or corrosion.

  • To fix the automobile fault code u1191, 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 U1191 can be diagnosed and fixed within an estimated repair time of 1.0 hour. The cost of repair is influenced by the hourly rate charged by the auto repair shop, which typically ranges between $75 and $150 per hour.

Therefore, the total cost of diagnosis and fixing the U1191 fault code will depend on the hourly rate charged by the auto repair shop and the estimated repair time required to fix the issue.

The u1191 fault code is a Diagnostic Trouble Code (DTC) that appears when the Cluster does not receive information from the Upper Switch Bank.

This code indicates that there is a communication problem between the Upper Switch Bank and the Cluster.

The u1191 code is also known as the Lost Communication With Upper Switch Bank code. This means that the Upper Switch Bank is not communicating with the Cluster, which can cause issues with the vehicle’s performance. If you see the u1191 fault code, it is important to have your vehicle inspected by a professional mechanic.

They will be able to diagnose the issue and determine the best course of action to fix the problem.

Ignoring this code can lead to further damage to your vehicle and potentially dangerous driving conditions.

What are the possible causes of the u1191 automobile fault code?

The u1191 automobile fault code can be caused by a faulty Upper Switch Bank, an open or shorted Upper Switch Bank harness, poor electrical connection in the Upper Switch Bank circuit, or a faulty Cluster. The engine light or service engine soon warning light may turn on as a symptom. To fix the issue, one should visually inspect the related 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 u1191 fault code?

If you’re experiencing the u1191 fault code, which is indicated by the engine light or service engine soon warning light being on, there are a few things you can do to fix it. Firstly, check the possible causes, which include a faulty upper switch bank, open or shorted harness, poor electrical connection, or a faulty cluster. To visually inspect the related wiring harness and connectors, look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.

What are the signs of damaged components that I should look for when fixing the u1191 fault code?

If you’re dealing with the u1191 fault code, you may notice that the engine light is on or the service engine soon warning light is illuminated. This could be caused by a faulty upper switch bank, an open or shorted upper switch bank harness, poor electrical connection in the upper switch bank circuit, or a faulty cluster. To fix the issue, check the possible causes listed above, visually inspect the related wiring harness and connectors, and look for damaged components such as broken, bent, pushed out, or corroded connector pins.

u1191 error fault code explained

If your engine light is on, it could be due to a faulty upper switch bank, open or shorted harness, poor electrical connection, or a faulty cluster.

Check the possible causes, inspect the wiring harness and connectors, and look for damaged components or corroded pins.

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