Engine-Codes.com
Engine-Codes – Cadillac – U2137 Cadillac

U2137 Cadillac Code - Lost Communications With Vehicle Theft Deterrent Module

Quick Answer

The U2137 Cadillac code indicates that there is a communication problem between the vehicle's engine control module (ECM) and the vehicle theft deterrent module. Common causes include Faulty vehicle theft deterrent module, Wiring issues or loose connections, Malfunctioning 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
U2137 Cadillac indicates Lost Communications With Vehicle Theft Deterrent Module.
Common causes
Common causes include Faulty vehicle theft deterrent module, Wiring issues or loose connections, Malfunctioning 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 17, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code U2137 Cadillac Description

The U2137 Cadillac code indicates that there is a communication problem between the vehicle's engine control module (ECM) and the vehicle theft deterrent module. The vehicle theft deterrent module is responsible for preventing unauthorized access to the vehicle by disabling the engine starting system. When communication is lost with this module, it can lead to issues with the vehicle's security system and potentially affect the vehicle's ability to start.

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

Common Causes of U2137 Cadillac

  1. Faulty vehicle theft deterrent module
  2. Wiring issues or loose connections
  3. Malfunctioning ECM
  4. Communication error between modules
  5. Electrical interference or damage

Symptoms of U2137 Cadillac

  1. Engine not starting
  2. Security light flashing on the dashboard
  3. Inability to disarm the security system
  4. Loss of power to various electrical components
  5. Vehicle going into anti-theft mode

How to Fix U2137 Cadillac

  1. Begin by checking the wiring and connections between the ECM and the vehicle theft deterrent module. Ensure all connections are secure and free of corrosion.
  2. Use a diagnostic scanner to reset the communication between the modules and clear the code. Check for any stored codes that may indicate a specific issue.
  3. If the problem persists, consider replacing the vehicle theft deterrent module or the ECM, depending on which component is determined to be faulty.
  4. Test the vehicle to ensure that the communication between the modules has been restored and that the vehicle starts and functions properly.
  5. If the issue is not resolved after these steps, consult a professional mechanic for further diagnosis and repair.

Cost to Fix U2137 Cadillac

The typical repair costs for resolving a U2137 Cadillac code can vary depending on the specific cause of the issue. Replacing a faulty vehicle theft deterrent module or ECM can range from $200 to $600, including parts and labor. Additional diagnostic time and labor rates at auto repair shops can vary between $80 and $150 per hour. It's recommended to consult a professional mechanic for an accurate estimate based on the vehicle's make and model, as well as the extent of the repair needed.

Need more information about the U2137 Cadillac code?

Need more information on how to fix the U2137 Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U2137 Cadillac code diagnosed by a professional: Find a repair shop in your area

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 Cadillac Code

1. What are the common symptoms of OBDII code U2137 in a Cadillac related to the Vehicle Theft Deterrent Module?

The common symptoms include issues with the vehicle starting, the security indicator light flashing, and possible immobilization of the vehicle.

2. What are the typical causes of the U2137 code in a Cadillac?

The U2137 code is usually caused by faults in the wiring connections to the Vehicle Theft Deterrent Module, a malfunctioning module itself, or a communication error between the module and other vehicle systems.

3. How can I diagnose the U2137 code related to the Vehicle Theft Deterrent Module in my Cadillac?

Diagnosing the U2137 code involves using an OBDII scanner to retrieve the code, inspecting the wiring and connections to the module, checking for any corrosion or damage, and testing the module's functionality.

4. Can I drive my Cadillac with the U2137 code present?

It is not recommended to drive your Cadillac with the U2137 code present, as it can lead to potential issues with the vehicle's security system and affect its drivability.

5. How can I repair the U2137 code in my Cadillac?

To repair the U2137 code, you may need to replace the Vehicle Theft Deterrent Module if it is faulty, repair any damaged wiring or connections, and clear the code using an OBDII scanner.

6. Are there any DIY tips for fixing the U2137 code in a Cadillac?

While some basic inspections and checks can be done DIY, diagnosing and repairing the U2137 code related to the Vehicle Theft Deterrent Module may require advanced knowledge and tools, so it's best to consult a professional mechanic.

7. How much does it cost to fix the U2137 code in a Cadillac?

The cost of fixing the U2137 code can vary depending on the root cause of the issue, the labor rates in your area, and whether any parts need to be replaced. It's advisable to get a few quotes from different mechanics.

8. Can a faulty Vehicle Theft Deterrent Module cause other issues in my Cadillac?

Yes, a faulty Vehicle Theft Deterrent Module can potentially cause other issues in your Cadillac, such as intermittent starting problems, engine stalling, or draining the battery.

9. Is the U2137 code in a Cadillac a common problem?

The U2137 code related to the Vehicle Theft Deterrent Module is not extremely common, but it can occur in Cadillac vehicles due to various electrical and communication issues.

10. How can I prevent the U2137 code from appearing in my Cadillac?

To prevent the U2137 code, it's essential to regularly maintain your vehicle's electrical system, including checking the wiring connections, keeping the battery in good condition, and addressing any warning signs promptly.

Discuss the causes and fixes for U2137 Cadillac OBDII Code

Submit a New Comment

Code U2137 Cadillac comments

No comments found for this page.