[SOLVED] U1134 Code: Ignition Switch/Starter Data Missing – How To Fix

The automobile fault code U1134 indicates a problem with a module that is not communicating properly. This can cause the engine light to turn on, indicating a need for service. The cause of this issue could be a faulty module, an open or shorted module harness, or a poor electrical connection in the module circuit.

It is important to visually inspect the wiring harness and connectors for any damage or corrosion. The repair time for this issue is estimated to be around 1.0, and it is crucial to address this problem promptly to avoid further damage to the vehicle. To interpret the fault code, it is recommended to check the “Possible Causes” listed above and inspect the related components thoroughly.

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 u1134 fault code. Here are the symptoms to look out for:

  • The automobile fault code U1134 has the following symptoms: Engine Light ON, Service Engine Soon Warning Light ON.

The automobile fault code u1134 can be caused by a faulty module, open or shorted module harness, or poor electrical connection.

  • The automobile fault code U1134 can be caused by a faulty module that is not communicating.
  • It can also be caused by an open or shorted module harness.
  • Additionally, a poor electrical connection in the module circuit can also trigger this fault code.

To fix the u1134 fault code, check the possible causes and inspect the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code u1134, you need to check the possible causes listed above.
  • Visually inspect the related wiring harness and connectors.
  • Look for damaged components and 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 U1134 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 U1134 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 U1134 code is related to the class 2 serial data circuit in automobiles. Modules in the circuit monitor for serial data communications during normal vehicle operation.

When a module does not associate an identification number with at least one critical parameter within 5 seconds of beginning serial data communication, the U1134 Diagnostic Trouble Code (DTC) is set.

This code specifically indicates invalid or missing data for the ignition switch or Sta.

What are the possible causes of the u1134 automobile fault code?

If you see the engine light on or the service engine soon warning light, it could be due to the u1134 fault code. This code is usually caused by a faulty module that is not communicating, an open or shorted module harness, or a poor electrical connection in the module circuit. To fix this issue, you 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 u1134 fault code?

If you’re experiencing the u1134 fault code, which is indicated by the Engine Light ON or Service Engine Soon Warning Light, you may have a faulty module that is not communicating, an open or shorted module harness, or a module circuit with poor electrical connection. To fix this issue, you 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.

What are the signs of damaged components that I should look for when fixing the u1134 fault code?

If you’re dealing with a u1134 fault code, keep an eye out for the engine light or service engine soon warning light turning on. This is usually caused by a faulty module that isn’t communicating, an open or shorted module harness, or a poor electrical connection in the module circuit. To fix the issue, visually inspect the wiring harness and connectors, and check for damaged components or broken, bent, pushed out, or corroded connector pins.

u1134 error fault code explained

If your engine light is on, it could be due to a faulty module or poor electrical connection.

Check the wiring harness and connectors for damage or corrosion.

Look for broken, bent, or pushed out pins.

Inspect the module and circuit for any issues. Take action accordingly.

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