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U2137 Chevrolet Code - Lost Communications With Vehicle Theft Deterrent Module

Quick Answer

The U2137 code for Chevrolet vehicles indicates that there is a communication issue with the Vehicle Theft Deterrent Module (VTD). Common causes include Faulty wiring harnesses, Loose or corroded connectors, Malfunctioning VTD 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
U2137 Chevrolet indicates Lost Communications With Vehicle Theft Deterrent Module.
Common causes
Common causes include Faulty wiring harnesses, Loose or corroded connectors, Malfunctioning VTD 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code U2137 Chevrolet Description

The U2137 code for Chevrolet vehicles indicates that there is a communication issue with the Vehicle Theft Deterrent Module (VTD). The VTD module is an essential component of the vehicle's security system, responsible for preventing unauthorized access to the vehicle. When communication with this module is lost, it can lead to a range of issues that affect the vehicle's performance and security.

OBDII Code U2137 Chevrolet - Lost Communications With Vehicle Theft Deterrent Module
U2137 Chevrolet Code - Lost Communications With Vehicle Theft Deterrent Module

Common Causes of U2137 Chevrolet

  1. Faulty wiring harnesses
  2. Loose or corroded connectors
  3. Malfunctioning VTD module
  4. Issues with the vehicle's computer network
  5. Electrical interference or grounding problems

Symptoms of U2137 Chevrolet

  1. Intermittent starting issues
  2. Vehicle alarm going off unexpectedly
  3. Engine not starting
  4. Security light staying on or flashing
  5. Loss of power while driving

How to Fix U2137 Chevrolet

  1. Perform a thorough inspection of the wiring harnesses and connectors for any damage or corrosion.
  2. Check the VTD module for proper functioning and replace if necessary.
  3. Inspect the vehicle's computer network for any communication issues and address as needed.
  4. Clear the diagnostic trouble codes and reset the system to see if the issue recurs.
  5. Test the vehicle to ensure that the communication with the VTD module is restored and that all systems are functioning properly.

Cost to Fix U2137 Chevrolet

The typical repair costs for addressing the U2137 code can vary depending on the specific cause of the communication loss and the labor rates at the auto repair shop. In general, repairing issues related to the VTD module can range from $200 to $500, including parts and labor. It's important to consider that diagnostic time and labor rates can vary, so it's advisable to check with local auto repair shops for a more accurate estimate based on your location and vehicle type.

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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 U2137 Chevrolet Code

1. What does the OBDII code U2137 mean on a Chevrolet?

U2137 indicates a loss of communication with the Vehicle Theft Deterrent Module (VTD), which plays a role in the vehicle's security system.

2. What are the symptoms of the U2137 code?

Common symptoms include the engine failing to start, security warning lights on the dashboard, or intermittent electrical issues.

3. What causes the U2137 code to appear?

Typical causes include a faulty Vehicle Theft Deterrent Module, damaged or corroded wiring, a malfunctioning control module, or a weak battery.

4. Can a dead battery cause the U2137 code?

Yes, a weak or dead battery can disrupt communication between modules, potentially triggering the U2137 code.

5. How do you diagnose the U2137 code?

Diagnosis involves checking for loose, damaged, or corroded wiring, inspecting the VTD module, testing the battery and fuses, and using a scan tool to monitor communication between modules.

6. Can I drive with the U2137 code?

In most cases, the vehicle may not start due to the security system being affected, so driving is typically not possible.

7. How is the U2137 code fixed?

Repairs may include replacing a faulty VTD module, repairing damaged wiring or connectors, updating module software, or resetting the system using a scan tool.

8. Does the U2137 code always mean the VTD module is bad?

No, the code could also be caused by wiring issues, communication errors, or even a low battery, so a thorough diagnosis is essential.

9. How much does it cost to fix the U2137 code?

Repair costs vary depending on the cause, but replacing the VTD module can range from $200 to $500, excluding labor costs.

10. Can a software update resolve the U2137 code?

In some cases, reprogramming or updating the vehicle’s control modules may resolve communication errors and clear the U2137 code.

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