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U2139 Buick Code - Lost Communication With Column Integration Module

Quick Answer

The U2139 Buick code indicates that there is a communication error between the vehicle's onboard computer system and the Column Integration Module (CIM). Common causes include Faulty wiring or connections related to the CIM, Malfunctioning CIM module, Corrosion or damage to communication lines. 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 Buick indicates Lost Communication With Column Integration Module.
Common causes
Common causes include Faulty wiring or connections related to the CIM, Malfunctioning CIM module, Corrosion or damage to communication lines.
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 14, 2024
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Code U2139 Buick Description

The U2139 Buick code indicates that there is a communication error between the vehicle's onboard computer system and the Column Integration Module (CIM). The CIM is responsible for managing various functions related to the steering column, such as steering wheel controls, ignition key recognition, and other integrated systems. When communication is lost with the CIM, it can lead to a range of issues affecting the vehicle's performance and functionality.

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

Common Causes of U2139 Buick

  1. Faulty wiring or connections related to the CIM
  2. Malfunctioning CIM module
  3. Corrosion or damage to communication lines
  4. Software issues affecting communication protocols
  5. Electrical interference or signal disruption

Symptoms of U2139 Buick

  1. Intermittent loss of power steering assistance
  2. Difficulty starting the engine
  3. Malfunctioning steering wheel controls
  4. Illumination of warning lights on the dashboard

How to Fix U2139 Buick

  1. Perform a diagnostic scan to retrieve the U2139 code and identify the specific cause of the communication error.
  2. Inspect wiring, connections, and communication lines related to the CIM for any damage or corrosion.
  3. Test the CIM module for proper functionality and replace if necessary.
  4. Clear the code from the vehicle's computer system after repairs are completed.
  5. Conduct a road test to ensure that the communication error has been resolved and that all systems are functioning correctly.

Cost to Fix U2139 Buick

The typical repair costs for addressing the U2139 Buick code can vary depending on the specific cause of the communication error. In general, the cost of parts for replacing a faulty CIM module or repairing wiring issues can range from $200 to $500. Labor costs at auto repair shops typically range from $80 to $150 per hour, with the total repair bill potentially amounting to $300 to $800 or more. It's important to note that these estimates are approximate, and actual costs may vary based on factors such as location, vehicle make and model, and the extent of the repairs needed. It's recommended to consult with a qualified mechanic for a more accurate cost estimate based on the specific circumstances of the U2139 code.

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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 Buick Code

1. What are the common symptoms of OBDII code U2139 in a Buick related to Lost Communication With Column Integration Module?

- Common symptoms include malfunctioning power steering, inoperative turn signals, and issues with the vehicle's ignition system.

2. What are the possible causes of the U2139 code in a Buick?

- The code could be triggered by a faulty column integration module, wiring issues, a blown fuse, or a software glitch in the vehicle's control module.

3. How can I diagnose the U2139 code in my Buick?

- You can diagnose the code by using an OBDII scanner to read the specific error codes, checking the wiring harness for any damage, and ensuring proper connection to the column integration module.

4. What steps can I take to repair the U2139 code in my Buick?

- Repair steps may include replacing the column integration module, repairing or replacing damaged wiring, checking and replacing blown fuses, and resetting the vehicle's control module.

5. Is it safe to continue driving my Buick with the U2139 code present?

- It is not recommended to drive the vehicle with the U2139 code active, as it can lead to potential safety hazards due to malfunctioning steering and other critical systems.

6. Can I reset the U2139 code in my Buick without professional help?

- While you can attempt to clear the code using an OBDII scanner, it is advisable to address the underlying issue causing the code to prevent it from reoccurring.

7. How much does it typically cost to repair the U2139 code in a Buick?

- The cost of repairs for the U2139 code can vary depending on the specific cause, but it may range from a few hundred dollars to over a thousand dollars for parts and labor.

8. Are there any preventive measures to avoid the U2139 code in a Buick?

- Regular maintenance, such as checking the wiring harness for wear and tear, ensuring proper connections, and addressing any warning signs promptly, can help prevent the U2139 code from occurring.

9. Can extreme weather conditions affect the U2139 code in a Buick?

- Extreme weather conditions, such as excessive heat or moisture, can potentially impact the electrical components in the column integration module and trigger the U2139 code.

10. How long does it usually take to repair the U2139 code in a Buick?

- The repair time for the U2139 code can vary depending on the complexity of the issue, but it may take a few hours to a full day for a professional technician to diagnose and address the problem effectively.

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