Engine-CodesDodge – U1120 Dodge

U1120 Dodge Code - Lost Wheel Distance Message

Quick Answer

The U1120 code for Dodge vehicles indicates a "Lost Wheel Distance Message." This code typically means that there is a communication error between the vehicle's modules regarding the wheel distance data. Common causes include Faulty wheel speed sensors, Damaged wiring or connectors related to wheel speed sensors, Issues with the ABS control module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
U1120 Dodge indicates Lost Wheel Distance Message .
Common causes
Common causes include Faulty wheel speed sensors, Damaged wiring or connectors related to wheel speed sensors, Issues with the ABS control module.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code U1120 Dodge Description

The U1120 code for Dodge vehicles indicates a "Lost Wheel Distance Message." This code typically means that there is a communication error between the vehicle's modules regarding the wheel distance data. This can affect the vehicle's performance by causing issues with the ABS system, traction control, and stability control. The distance data is crucial for these systems to function properly, as they rely on it to determine wheel speed and ensure safe driving conditions. If this code is not addressed, it can lead to decreased vehicle stability, compromised braking performance, and potential safety hazards on the road.

OBDII Code U1120 Dodge - Lost Wheel Distance Message
U1120 Dodge Code - Lost Wheel Distance Message

Common Causes of U1120 Dodge

  1. Faulty wheel speed sensors
  2. Damaged wiring or connectors related to wheel speed sensors
  3. Issues with the ABS control module
  4. Malfunctioning CAN (Controller Area Network) bus communication
  5. Electronic control unit (ECU) software glitches

Symptoms of U1120 Dodge

  1. ABS warning light illuminated on the dashboard
  2. Traction control system malfunctions or engages unexpectedly
  3. Stability control system errors or interventions
  4. Inaccurate speedometer readings
  5. Loss of power or reduced acceleration

How to Fix U1120 Dodge

  1. Perform a diagnostic scan to retrieve the exact fault codes and pinpoint the issue
  2. Inspect the wheel speed sensors, wiring, and connectors for any damage or corrosion
  3. Test the ABS control module for proper functionality and communication
  4. Check the CAN bus system for any faults or communication errors
  5. Reset the ECU and reprogram if necessary

Cost to Fix U1120 Dodge

The cost to repair a U1120 code for a Dodge vehicle can vary depending on the specific underlying issue. On average, the repair costs can range from $200 to $500, including parts and labor. Keep in mind that the diagnosis time and labor rates at auto repair shops can influence the final cost. It's recommended to consult with a professional mechanic to get an accurate estimate based on your vehicle's make and model.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U1120 Dodge Code

1. What does the OBDII code U1120 Dodge indicate?

The U1120 code in a Dodge vehicle specifically refers to a "Lost Wheel Distance Message" communication error between modules.

2. What are the common symptoms of the U1120 Dodge code?

Common symptoms of the U1120 code may include issues with the ABS system, traction control system, or the vehicle stability control system. Drivers may notice warning lights on the dashboard or experience limited functionality of these safety features.

3. What are the possible causes of the U1120 Dodge code?

The U1120 code can be triggered by various issues such as faulty wheel speed sensors, damaged wiring harnesses, poor electrical connections, or a malfunctioning ABS module.

4. How is the U1120 Dodge code diagnosed?

Diagnosing the U1120 code typically involves using a professional OBDII scanner to retrieve the specific fault codes stored in the vehicle's system. Additionally, conducting a visual inspection of the wheel speed sensors and related components can help pinpoint the issue.

5. Can the U1120 Dodge code be fixed at home?

Depending on the underlying cause, some DIY enthusiasts may be able to address the U1120 code at home by checking and cleaning the wheel speed sensors, inspecting wiring connections, or resetting the fault codes. However, complex issues may require professional diagnosis and repair.

6. Is it safe to drive with the U1120 Dodge code present?

While the U1120 code may not directly affect the drivability of the vehicle, it is crucial not to ignore it. Driving with unresolved ABS or traction control system issues can compromise the vehicle's safety in certain driving conditions.

7. How much does it typically cost to repair the U1120 Dodge code?

The cost of repairing the U1120 code can vary depending on the root cause of the issue, the need for part replacements, and labor costs. It is advisable to consult a mechanic for an accurate diagnosis and cost estimate.

8. Can resetting the fault codes clear the U1120 Dodge code permanently?

Resetting the fault codes may temporarily clear the U1120 code, but if the underlying issue is not addressed, the code is likely to reappear. It is essential to diagnose and fix the root cause to prevent the code from returning.

9. Will the U1120 Dodge code prevent my vehicle from passing an emissions test?

The U1120 code itself may not directly impact emissions, but it is necessary to resolve any stored fault codes before attempting an emissions test. Some testing facilities may flag unresolved codes, leading to a test failure.

10. How can I prevent the U1120 Dodge code from recurring?

To prevent the U1120 code from recurring, it is essential to maintain regular vehicle inspections, promptly address any warning lights or unusual symptoms, and ensure proper care and maintenance of the ABS and traction control systems.

Discuss the causes and fixes for U1120 Dodge OBDII Code

  • Parked truck ran perfect.next day would turn over but not start.then I got trouble code Po522 oil pressure circuit ,low voltage.put a new oil pressure sending unit on,cleared trouble code.still would not start.trouble code u1120 came up.that's where I'm at now!what to do next?06 ram 1500 4.7 liter.

  • The U1120 code means that the The Powertrain Control Module (PCM) is not properly communicating with the Anti-Lock Brake (ABS) Module, but that shouldn't cause a no start problem. I recommend ignoring the code for now and check all the basics (fuel, air, spark) for the engine to start.

  • I just went though about the same issue with my 07 Pacifica Touring. I kept getting code U1120 and all my dash lights was on plus windows, radio, a/c.... wouldn't work. I ended up finding the issue, it was one of the chastity grounds between the driver side headlight and radiator G101-G104 had turned a greenish color and broken at the sight. So my suggestion is to check you grounds and clean them.

  • I have a 2008 Chrysler 300 C, my son killed the 10 year old stock battery listening to music, we jump started the car but then the vehicle when into limp mode. She doesn't shift I have no spedometer auto up/down on on the windows does not work,I have check engine, ABS/ESP and parking brake lights on the cluster. I went to autozone and got a code read out and the codes it gave me are as follows:
    U1120, U1110, U0121.
    Suggested part was brake sensor. Would this cause the vehicle not tonshoftnor read speed?

  • You should try charge the battery first, by driving your vehicle or with a battery charging, then clear all the codes.More than likely the low battery was what set the codes.

  • The vehicle ran to charge for about 20 minutes, when my daughter drove around the block, she came back reporting it would not shift or accelerate past 25 mph. Bought a new battery, tried clearing codes, still no luck.