AutoCodes – Chrysler – U1120 Chrysler

U1120 Chrysler Code - Lost Wheel Distance Message

Quick Answer

The Powertrain Control Module (PCM) receives the vehicle speed signal over the Controlled Area Network (CAN) C bus from the Anti-Lock Brake System (ABS) Module. Common causes include Faulty Anti-Lock Brake System (ABS) Module, Anti-Lock Brake System (ABS) Module harness is open or shorted, Anti-Lock Brake System (ABS) Module circuit poor electrical connection. 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 Chrysler indicates Lost Wheel Distance Message .
Common causes: Common causes include Faulty Anti-Lock Brake System (ABS) Module, Anti-Lock Brake System (ABS) Module harness is open or shorted, Anti-Lock Brake System (ABS) Module circuit poor electrical connection.
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.

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Code Popularity 9,899

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 22, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1120 Chrysler Description

The Powertrain Control Module (PCM) receives the vehicle speed signal over the Controlled Area Network (CAN) C bus from the Anti-Lock Brake System (ABS) Module. The Diagnostic Trouble Code (DTC) sets when the PCM doesn't receive a vehicle speed signal from the Anti-Lock Brake System Module over the CAN C bus. One Trip fault.

OBDII Code U1120 Chrysler - Lost Wheel Distance Message - AutoCodes.com — U1120 Chrysler Code - Lost Wheel Distance Message

What does this mean?

What are the Possible Causes of the DTC U1120 Chrysler?

Faulty Anti-Lock Brake System (ABS) Module
Anti-Lock Brake System (ABS) Module harness is open or shorted
Anti-Lock Brake System (ABS) Module circuit poor electrical connection

How to Fix the DTC U1120 Chrysler?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U1120 Chrysler code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 Chrysler Code

1. What does the OBDII code U1120 Chrysler mean?

The U1120 code in Chrysler vehicles refers to a "Lost Wheel Distance Message" being detected by the vehicle's onboard computer system.

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

Common symptoms associated with the U1120 code may include issues with the ABS system, traction control problems, and the illumination of the ABS or traction control warning lights on the dashboard.

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

The U1120 code can be triggered by various factors, such as faulty wheel speed sensors, damaged wiring or connectors in the ABS system, wheel bearing issues, or problems with the ABS module itself.

4. How is the U1120 code diagnosed?

Diagnosing the U1120 code typically involves using a professional OBDII scanner to retrieve the specific fault codes stored in the vehicle's computer system. Technicians will then perform a thorough inspection of the ABS system components to identify the root cause of the issue.

5. Can I continue driving with the U1120 code present?

It is not recommended to continue driving with the U1120 code illuminated, as it indicates potential issues with the ABS system that can affect the vehicle's safety and performance.

6. How is the U1120 code typically repaired?

Repairing the U1120 code may involve replacing faulty wheel speed sensors, repairing damaged wiring or connectors, addressing wheel bearing issues, or reprogramming the ABS module, depending on the root cause of the problem.

7. Are there any DIY tips for fixing the U1120 code?

While some basic troubleshooting steps can be taken, resolving the U1120 code often requires specialized tools and expertise. It is advisable to consult with a qualified mechanic or technician for proper diagnosis and repair.

8. How much does it cost to fix the U1120 code?

The cost of fixing the U1120 code can vary depending on the specific cause of the issue, the extent of the repairs needed, and the labor rates at the repair facility. It's best to obtain estimates from local service centers for an accurate cost assessment.

9. Can the U1120 code be related to other ABS or traction control codes?

Yes, the U1120 code may sometimes be accompanied by other ABS or traction control codes, indicating interconnected issues within the vehicle's safety systems that require thorough diagnostics and repair.

10. How can I prevent the U1120 code from reoccurring?

Regular maintenance of the ABS system, including checking the condition of wheel speed sensors, inspecting wiring connections, and addressing any abnormal symptoms promptly, can help prevent the U1120 code from reoccurring.