AutoCodes – Pontiac – U2137 Pontiac

U2137 Pontiac 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 Pontiac 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.

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Code Popularity 1,588

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

What does this mean?

What are the Possible Causes of the DTC U2137 Pontiac?

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 Pontiac?

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 Pontiac 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.

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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 Pontiac Code

1. What are the common symptoms of OBDII code U2137 in a Pontiac related to "Lost Communications With Vehicle Theft Deterrent Module"?

- Common symptoms include issues with the vehicle's anti-theft system, difficulty starting the car, and the security light staying illuminated on the dashboard.

2. What are possible causes of OBDII code U2137 in a Pontiac?

- The code U2137 can be triggered by a faulty Vehicle Theft Deterrent (VTD) module, damaged wiring or connectors, or a communication breakdown between the module and other vehicle systems.

3. How can I diagnose the cause of OBDII code U2137 in my Pontiac?

- Diagnosis typically involves checking the wiring and connectors related to the Vehicle Theft Deterrent module, testing the module itself for faults, and using a scan tool to identify communication errors.

4. Is it safe to continue driving my Pontiac with OBDII code U2137 present?

- It is generally not recommended to drive the vehicle with this code present, as it can lead to potential security issues or difficulties starting the car.

5. Can I repair OBDII code U2137 in my Pontiac myself?

- While some DIY enthusiasts may attempt to diagnose and repair this code, it is often best to consult a professional technician with experience in dealing with anti-theft systems.

6. How much does it typically cost to repair OBDII code U2137 in a Pontiac?

- Repair costs can vary depending on the root cause of the issue, but it may involve replacing the VTD module, repairing wiring, or reprogramming the system, which can range from a few hundred to a thousand dollars.

7. Are there any preventive measures to avoid triggering OBDII code U2137 in my Pontiac?

- Regularly maintaining the vehicle's anti-theft system, ensuring proper wiring connections, and promptly addressing any security system warning signs can help prevent the code from being triggered.

8. Can a low battery voltage cause OBDII code U2137 to appear in my Pontiac?

- Yes, a low battery voltage can sometimes lead to communication issues with the Vehicle Theft Deterrent module, triggering the U2137 code. It is recommended to check the battery health as part of the diagnosis.

9. Will resetting the OBDII code U2137 in my Pontiac make the problem go away permanently?

- Simply resetting the code without addressing the underlying issue will not permanently solve the problem. It is crucial to diagnose and repair the root cause to prevent the code from reappearing.

10. How long does it typically take to repair OBDII code U2137 in a Pontiac?

- The repair time can vary based on the specific issue causing the code, but it may take a few hours to a full day for a professional technician to diagnose, repair, and test the anti-theft system thoroughly.