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U2139 Chevrolet Code - Lost Communication With Column Integration Module

Quick Answer

The U2139 code for Chevrolet vehicles indicates that there is a communication failure with the Column Integration Module (CIM). Common causes include Loose or corroded wiring connections, Faulty CIM, Malfunctioning CAN bus communication network. 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
U2139 Chevrolet indicates Lost Communication With Column Integration Module.
Common causes
Common causes include Loose or corroded wiring connections, Faulty CIM, Malfunctioning CAN bus communication network.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code U2139 Chevrolet Description

The U2139 code for Chevrolet vehicles indicates that there is a communication failure with the Column Integration Module (CIM). The CIM is a crucial component in the vehicle's steering column, responsible for various functions such as controlling the turn signals, wipers, cruise control, and other steering-related features. When communication is lost with the CIM, it can lead to a range of issues that affect the vehicle's performance and safety.

OBDII Code U2139 Chevrolet - Lost Communication With Column Integration Module
U2139 Chevrolet Code - Lost Communication With Column Integration Module

Common Causes of U2139 Chevrolet

  1. Loose or corroded wiring connections
  2. Faulty CIM
  3. Malfunctioning CAN bus communication network
  4. Water damage or exposure to moisture
  5. Electrical issues in the steering column

Symptoms of U2139 Chevrolet

  1. Non-functional turn signals or erratic behavior
  2. Inoperative cruise control
  3. Malfunctioning wipers
  4. Warning lights on the dashboard related to steering column functions
  5. Loss of communication with other modules in the vehicle

How to Fix U2139 Chevrolet

  1. Perform a comprehensive diagnostic scan to retrieve the specific trouble codes and pinpoint the source of the communication failure.
  2. Inspect wiring connections and harnesses for any signs of damage, corrosion, or looseness. Repair or replace as needed.
  3. Test the CIM for proper functionality and communication. Replace the CIM if it is found to be faulty.
  4. Check the CAN bus network for any faults or disruptions. Repair or replace any damaged components.
  5. Clear the trouble codes from the vehicle's memory and perform a final test to ensure proper communication and functionality.

Cost to Fix U2139 Chevrolet

The typical repair costs for addressing a lost communication issue with the Column Integration Module can range from $200 to $600, depending on the specific cause of the problem and the extent of repairs needed. This estimate includes the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary significantly, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle specifics.

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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 U2139 Chevrolet Code

1. What are the common symptoms of OBDII code U2139 in a Chevrolet vehicle?

- Common symptoms include intermittent or total loss of power steering, issues with turn signals, malfunctioning windshield wipers, and potential problems with the vehicle's ignition system.

2. What is the primary cause of the U2139 code indicating lost communication with the Column Integration Module in a Chevrolet?

- The primary cause is typically a faulty Column Integration Module (CIM) or a poor connection between the CIM and other control modules in the vehicle.

3. How can I diagnose the U2139 code in my Chevrolet if I suspect a communication issue with the Column Integration Module?

- A diagnostic scan tool can help pinpoint the source of the communication breakdown between the CIM and other modules. Check for loose connections, damaged wiring, or a malfunctioning CIM.

4. Can I still drive my Chevrolet if the U2139 code for lost communication with the Column Integration Module is present?

- It is not recommended to drive the vehicle with the U2139 code active, especially if it is affecting critical systems like power steering or ignition. Address the issue promptly to avoid safety hazards.

5. Are there any DIY repair tips for resolving the U2139 code in a Chevrolet related to the Column Integration Module?

- DIY repairs may include checking and securing connections, inspecting wiring for damage, and resetting the code using a diagnostic tool. However, complex issues with the CIM may require professional repair.

6. Is it necessary to replace the Column Integration Module when dealing with the U2139 trouble code in a Chevrolet?

- In some cases, replacing the CIM may be necessary if it is confirmed to be the source of the communication failure. Consult with a qualified mechanic to determine the best course of action.

7. How much can I expect to pay for repairs related to the U2139 code in a Chevrolet due to lost communication with the Column Integration Module?

- Repair costs can vary depending on the extent of the issue and whether replacement parts are needed. Expect to budget for diagnostic fees, parts, and labor costs.

8. Will resetting the U2139 trouble code in my Chevrolet temporarily resolve the issue with the Column Integration Module?

- Resetting the code may temporarily clear the warning light, but if the underlying communication problem persists, the code is likely to reappear. It is essential to address the root cause of the issue.

9. Can extreme weather conditions or environmental factors trigger the U2139 trouble code in a Chevrolet?

- While rare, extreme temperatures or moisture exposure can potentially lead to communication issues with the Column Integration Module, resulting in the U2139 trouble code.

10. How long does it typically take to repair the U2139 code related to lost communication with the Column Integration Module in a Chevrolet?

- The repair time can vary based on the complexity of the issue and the availability of replacement parts. Simple fixes may take a few hours, while more involved repairs could require a day or more.

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