The automobile fault code U1120 indicates a problem with the Anti-Lock Brake System (ABS) Module.

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

The cause of this fault code could be a faulty ABS module, an open or shorted ABS module harness, or a poor electrical connection in the ABS module circuit.

The importance of repairing this issue lies in the fact that it affects the vehicle’s braking system. The repair difficulty is moderate, and the repair time is estimated at 1.0 hour. To fix the 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 (or Service Engine Soon Warning Light), it could be a sign of u1120 fault code.

Here are the symptoms to look out for:

  • The automobile fault code U1120 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 ABS system, problems with the speedometer, and difficulty shifting gears.
  • Additionally, the vehicle may experience a loss of power or acceleration, and the transmission may go into limp mode.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle.

The automobile fault code u1120 can be caused by a faulty ABS module, open or shorted harness, or poor electrical connection.

  • The automobile fault code u1120 can be caused by a faulty Anti-Lock Brake System (ABS) Module.
  • It can also be caused by an open or shorted Anti-Lock Brake System (ABS) Module harness.
  • Additionally, a poor electrical connection in the Anti-Lock Brake System (ABS) Module circuit can also trigger this fault code.

To fix the u1120 automobile fault code, check the possible causes and inspect the related wiring harness, connectors, and components for damage.

  • To fix the automobile fault code u1120, 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 U1120 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 diagnosing and fixing the U1120 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 u1120 fault code is related to the Powertrain Control Module (PCM) in your automobile.

It occurs when the PCM does not receive a vehicle speed signal from the Anti-Lock Brake System (ABS) Module over the CAN C bus. This fault code is a one-trip fault, meaning it will only set once the issue occurs. The u1120 code is specifically related to a lost wheel distance message, which can cause issues with the vehicle’s speedometer and other related systems.

If you receive this fault code, it is important to have it diagnosed and repaired by a qualified mechanic to ensure proper vehicle function.

What are the possible causes of the u1120 automobile fault code?

If you see the engine light on or the service engine soon warning light, it could be due to the u1120 automobile fault code. This code is caused by a faulty Anti-Lock Brake System (ABS) Module, an open or shorted ABS Module harness, or a poor electrical connection in the ABS 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 u1120 fault code?

If you’re experiencing an engine light or service engine soon warning light with a u1120 fault code, it could be due to a faulty Anti-Lock Brake System (ABS) Module, an open or shorted ABS Module harness, or a poor electrical connection in the ABS Module circuit. To fix this issue, start by visually inspecting the related wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. This will help you identify any issues and determine the best course of action to take.

What are the signs of damaged components that I should look for when fixing the u1120 fault code?

If you’re fixing the u1120 fault code, look out for the engine light being on or the service engine soon warning light. The cause could be a faulty Anti-Lock Brake System (ABS) Module, an open or shorted ABS Module harness, or a poor electrical connection in the ABS Module circuit. To fix it, 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.

u1120 error fault code explained

If your engine light is on and you have a u1120 fault code, it may be due to a faulty ABS module, open or shorted harness, or poor electrical connection.

To fix it, visually inspect the wiring harness and connectors for damage or corrosion, and check for broken or bent pins.

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