AutoCodes – Saturn – U2139 Saturn

U2139 Saturn Code - Lost Communication With Column Integration Module

Quick Answer

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Column Integration Module, Column Integration Module harness is open or shorted, Column Integration 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: U2139 Saturn indicates Lost Communication With Column Integration Module.
Common causes: Common causes include Faulty Column Integration Module, Column Integration Module harness is open or shorted, Column Integration 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 745

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 U2139 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 U2139 Saturn - Lost Communication With Column Integration Module - AutoCodes.com — U2139 Saturn Code - Lost Communication With Column Integration Module

What does this mean?

What are the Possible Causes of the DTC U2139 Saturn?

Faulty Column Integration Module
Column Integration Module harness is open or shorted
Column Integration Module circuit poor electrical connection

How to Fix the DTC U2139 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 U2139 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 U2139 Saturn code?

Need more information on how to fix the U2139 Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U2139 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 U2139 Saturn Code

1. What are the common symptoms of OBDII code U2139 in a Saturn related to lost communication with the Column Integration Module?

- Common symptoms include issues with power steering functionality, cruise control not working, and warning lights on the dashboard.

2. What are some possible causes for the U2139 OBDII code indicating lost communication with the Column Integration Module in a Saturn?

- Potential causes include wiring harness issues, a faulty Column Integration Module, a defective steering angle sensor, or a malfunctioning communication network.

3. How can I diagnose the U2139 code in my Saturn to determine the root cause of the communication loss with the Column Integration Module?

- Diagnosing the code involves checking the wiring connections, inspecting the Column Integration Module for any damage, testing the steering angle sensor, and using a diagnostic scan tool to identify communication errors.

4. Is it safe to continue driving my Saturn with the U2139 code indicating lost communication with the Column Integration Module?

- It is not recommended to drive the vehicle with this code present, as it may affect essential systems like power steering and compromise overall safety.

5. Can I reset the U2139 code in my Saturn by disconnecting the battery, or do I need a professional diagnostic tool?

- While disconnecting the battery may temporarily clear the code, using a professional diagnostic tool is essential to properly diagnose and repair the underlying issue.

6. What are some repair tips for addressing the U2139 code related to lost communication with the Column Integration Module in a Saturn?

- Repair tips include checking and repairing any damaged wiring, replacing the Column Integration Module if necessary, recalibrating the steering angle sensor, and ensuring proper communication network functionality.

7. How much might it cost to repair the U2139 code indicating lost communication with the Column Integration Module in a Saturn?

- Repair costs can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, labor, and diagnostic services.

8. Are there any recalls or technical service bulletins related to the U2139 code in Saturn vehicles?

- It is recommended to check with Saturn or a qualified dealership for any relevant recalls or technical service bulletins related to the U2139 code and communication issues with the Column Integration Module.

9. Can extreme weather conditions or rough driving contribute to triggering the U2139 code in a Saturn?

- While extreme weather or harsh driving conditions may not directly cause the code, they can potentially exacerbate existing issues with the communication system and lead to the U2139 code being triggered.

10. Should I attempt to repair the U2139 code in my Saturn myself, or is it best left to a professional mechanic?

- Due to the complexity of diagnosing and repairing communication issues like the U2139 code, it is generally recommended to seek the expertise of a professional mechanic to ensure accurate diagnosis and proper repair.