AutoCodes – Buick – U2179 Buick

U2179 Buick Code - Lost Communication With Television Module

Quick Answer

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Television Module, Television Module harness is open or shorted, Television 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: U2179 Buick indicates Lost Communication With Television Module.
Common causes: Common causes include Faulty Television Module, Television Module harness is open or shorted, Television 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 529

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 U2179 Buick 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 U2179 Buick - Lost Communication With Television Module - AutoCodes.com — U2179 Buick Code - Lost Communication With Television Module

What does this mean?

What are the Possible Causes of the DTC U2179 Buick?

Faulty Television Module
Television Module harness is open or shorted
Television Module circuit poor electrical connection

How to Fix the DTC U2179 Buick?

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 U2179 Buick 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 U2179 Buick Code

1. What are the common symptoms of OBDII code U2179 in a Buick related to lost communication with the television module?

- The common symptoms include a blank or frozen screen on the entertainment system, loss of audio or video output, and unresponsive controls.

2. What are some potential causes of the U2179 code indicating lost communication with the television module in a Buick?

- Potential causes can be a faulty television module, damaged wiring or connectors, a blown fuse, or a software glitch in the system.

3. How can I diagnose the U2179 code in my Buick when experiencing communication issues with the television module?

- You can start by checking the fuse related to the television module, inspecting the wiring for any visible damage, and using an OBDII scanner to retrieve specific error codes for further troubleshooting.

4. Are there any quick repair tips for resolving the U2179 code in a Buick related to lost communication with the television module?

- Quick repair tips include checking and replacing any blown fuses, ensuring all connections are secure, and performing a system reset by disconnecting the car battery for a few minutes.

5. Can a DIY enthusiast fix the U2179 code in a Buick by themselves, or is professional help necessary?

- Depending on the root cause, DIY enthusiasts with some automotive experience may be able to fix the issue by following repair guides, but in complex cases, professional help from a mechanic or dealership may be required.

6. Is it safe to continue driving my Buick with the U2179 code related to lost communication with the television module?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to restore proper functionality to the entertainment system.

7. How much can I expect to pay for repairing the U2179 code in a Buick caused by lost communication with the television module?

- The cost of repair can vary depending on the specific problem, but it may range from a simple fuse replacement costing a few dollars to a more complex module replacement costing several hundred dollars.

8. Will resetting the U2179 code in my Buick by disconnecting the battery resolve the communication issue with the television module?

- Resetting the code by disconnecting the battery may temporarily clear the error, but if the underlying issue causing the communication problem persists, the code is likely to reappear.

9. How can I prevent the U2179 code from reoccurring in my Buick after repairing the communication issue with the television module?

- To prevent the code from reoccurring, ensure all connections are secure, use high-quality replacement parts if needed, and consider regular maintenance checks to catch any potential issues early.