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U2138 Chevrolet Code - Lost Communication With Steering Column Lock Control Module

Quick Answer

The U2138 code for Chevrolet indicates that there is a communication problem between the vehicle's engine control module (ECM) and the steering column lock control module. Common causes include Faulty wiring or connections between the ECM and steering column lock control module, Malfunctioning steering column lock control module, Software issues within the ECM. 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
U2138 Chevrolet indicates Lost Communication With Steering Column Lock Control Module.
Common causes
Common causes include Faulty wiring or connections between the ECM and steering column lock control module, Malfunctioning steering column lock control module, Software issues within the ECM.
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 12, 2024
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Code U2138 Chevrolet Description

The U2138 code for Chevrolet indicates that there is a communication problem between the vehicle's engine control module (ECM) and the steering column lock control module. This can lead to issues with the steering column lock functionality, potentially causing safety concerns and affecting the vehicle's overall performance. The steering column lock control module is responsible for locking the steering column in place when the vehicle is turned off, preventing theft or unauthorized use of the vehicle.

OBDII Code U2138 Chevrolet - Lost Communication With Steering Column Lock Control Module
U2138 Chevrolet Code - Lost Communication With Steering Column Lock Control Module

Common Causes of U2138 Chevrolet

  1. Faulty wiring or connections between the ECM and steering column lock control module.
  2. Malfunctioning steering column lock control module.
  3. Software issues within the ECM.
  4. Electrical interference or disruptions in communication signals.
  5. Physical damage to the steering column lock control module.

Symptoms of U2138 Chevrolet

  1. Steering column not locking when the vehicle is turned off.
  2. Warning light on the dashboard related to steering column lock.
  3. Difficulty starting the vehicle.
  4. Erratic behavior of the steering wheel.

How to Fix U2138 Chevrolet

  1. Begin by conducting a thorough inspection of the wiring and connections between the ECM and steering column lock control module to check for any loose or damaged components.
  2. Test the steering column lock control module to determine if it is functioning properly or if it needs to be replaced.
  3. Update the software in the ECM to ensure that it is communicating effectively with the steering column lock control module.
  4. Address any electrical interference issues by shielding or rerouting wiring to prevent signal disruptions.
  5. If necessary, replace the steering column lock control module with a new, functioning unit.

Cost to Fix U2138 Chevrolet

The typical repair costs for addressing a U2138 code on a Chevrolet can range from $200 to $500, depending on the specific issue causing the communication loss and the cost of replacement parts. Labor costs can vary but are generally in the range of $80 to $150 per hour. It is advisable to consult with a qualified mechanic or auto repair shop to obtain a more accurate estimate based on your vehicle's make and model, as well as the extent of the repair needed.

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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 U2138 Chevrolet Code

1. What are the common symptoms of OBDII code U2138 in a Chevrolet related to the Steering Column Lock Control Module issue?

- Common symptoms include difficulty starting the vehicle, steering wheel lock malfunctions, and warning lights on the dashboard.

2. What are some possible causes of the U2138 code indicating a lost communication with the Steering Column Lock Control Module in a Chevrolet?

- Possible causes include a faulty steering column lock control module, wiring issues, loose connections, or a malfunctioning CAN bus communication system.

3. How serious is the U2138 code in a Chevrolet, indicating a communication problem with the Steering Column Lock Control Module?

- This code is serious as it can affect the vehicle's ability to start and steer properly, potentially leading to safety concerns if not addressed promptly.

4. Can I still drive my Chevrolet with the U2138 code present, indicating a lost communication with the Steering Column Lock Control Module?

- It is not recommended to drive the vehicle with this code present, as it may result in steering issues or difficulty starting the car.

5. How can I diagnose and repair the U2138 code related to the Steering Column Lock Control Module issue in my Chevrolet?

- Diagnosis involves checking the wiring, connections, and the module itself for any faults. Repair may involve replacing the faulty module, repairing wiring issues, or addressing communication system problems.

6. Is it possible to reset the U2138 code indicating a lost communication with the Steering Column Lock Control Module in a Chevrolet?

- Resetting the code may temporarily clear the warning, but it is important to diagnose and fix the underlying issue to prevent the code from reappearing.

7. Can a DIY enthusiast fix the U2138 code related to the Steering Column Lock Control Module problem in a Chevrolet?

- Depending on the skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair simple wiring issues, but complex repairs or module replacements may require professional assistance.

8. How much does it typically cost to repair the U2138 code indicating a lost communication with the Steering Column Lock Control Module in a Chevrolet?

- Repair costs can vary depending on the exact cause of the issue, but it may involve replacement of the module, wiring repairs, or addressing communication system problems, which can range from a hundred to several hundred dollars.

9. Are there any preventive measures to avoid encountering the U2138 code related to the Steering Column Lock Control Module issue in a Chevrolet?

- Regular maintenance checks, avoiding water damage to the steering column area, and promptly addressing any warning signs can help prevent issues leading to this code.

10. How long does it typically take to repair the U2138 code indicating a lost communication with the Steering Column Lock Control Module in a Chevrolet?

- The repair time can vary depending on the exact cause of the problem and the complexity of the repair, but it may take a few hours to a full day in some cases.

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