AutoCodes – Saturn – U2137 Saturn

U2137 Saturn Code - Lost Communications With Vehicle Theft Deterrent Module

Quick Answer

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Vehicle Theft Deterrent Module, Vehicle Theft Deterrent Module harness is open or shorted, Vehicle Theft Deterrent Module circuit poor electrical connection. 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 Saturn indicates Lost Communications With Vehicle Theft Deterrent Module.
Common causes: Common causes include Faulty Vehicle Theft Deterrent Module, Vehicle Theft Deterrent Module harness is open or shorted, Vehicle Theft Deterrent Module circuit poor electrical connection.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 880

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code U2137 Saturn Description

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the devices. The devices have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver device as an availability indication of the transmitter device. Each message contains the identification number of the transmitter device. A loss of serial data communications Diagnostic Trouble Code (DTC) does not represent a failure of the devices that contain the stored code. The DTC will set when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U2137 Saturn - Lost Communications With Vehicle Theft Deterrent Module - AutoCodes.com — U2137 Saturn Code - Lost Communications With Vehicle Theft Deterrent Module

What does this mean?

What are the Possible Causes of the DTC U2137 Saturn?

Faulty Vehicle Theft Deterrent Module
Vehicle Theft Deterrent Module harness is open or shorted
Vehicle Theft Deterrent Module circuit poor electrical connection

How to Fix the DTC U2137 Saturn?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U2137 Saturn code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the U2137 Saturn code?

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

Need Help with the Code?

Get the U2137 Saturn 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 Saturn Code

1. What does the OBDII code U2137 for Saturn mean?

The code U2137 indicates a communication error between the vehicle's engine control module (ECM) and the vehicle theft deterrent module (VTD).

2. What are the common symptoms of the U2137 code on a Saturn?

Common symptoms include the security light illuminating on the dashboard, difficulty starting the vehicle, and issues with the anti-theft system functioning properly.

3. What are some possible causes of the U2137 code on a Saturn?

Possible causes include a faulty VTD module, wiring issues between the ECM and VTD, a malfunctioning ignition key, or a problem with the ECM itself.

4. How can I diagnose the U2137 code on my Saturn?

Diagnosing the U2137 code may involve checking the wiring connections between the ECM and VTD, testing the VTD module for proper functionality, and ensuring the ignition key is programmed correctly.

5. Can I still drive my Saturn with the U2137 code present?

It is not recommended to drive the vehicle with the U2137 code present, as it may lead to potential security issues and further damage to the vehicle's systems.

6. How can I repair the U2137 code on my Saturn?

Repairing the U2137 code may involve replacing the VTD module, repairing any damaged wiring, reprogramming the ignition key, or resetting the ECM to establish communication with the VTD.

7. Is the U2137 code a serious issue on a Saturn?

The U2137 code should be addressed promptly, as it can affect the proper functioning of the vehicle's anti-theft system and potentially lead to starting or security issues.

8. Can I reset the U2137 code on my Saturn without professional help?

Resetting the U2137 code may require advanced diagnostic tools and knowledge, so it is recommended to seek professional help to properly diagnose and repair the issue.

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

The cost of fixing the U2137 code can vary depending on the underlying cause, such as replacing the VTD module, repairing wiring, or reprogramming components. It is advisable to consult a mechanic for an accurate estimate.

10. Can a DIY enthusiast fix the U2137 code on a Saturn?

While some DIY enthusiasts may have the skills to diagnose and repair simple wiring issues related to the U2137 code, more complex repairs involving module replacement or reprogramming may require professional expertise to ensure proper resolution.