AutoCodes – Buick – U0106 Buick

U0106 Buick Code - Lost Communication With Glow Plug Control Module

Quick Answer

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Glow Plug Control Module, Glow Plug Control Module harness is open or shorted, Glow Plug Control 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: U0106 Buick indicates Lost Communication With Glow Plug Control Module.
Common causes: Common causes include Faulty Glow Plug Control Module, Glow Plug Control Module harness is open or shorted, Glow Plug Control 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 640

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 Mar 30, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0106 Buick Description

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. The modules 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 module as an availability indication of the transmitter module. The supervision time-out period is 250 ms. Each message contains the identification number of the transmitter module. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Glow Plug Control Module has not been received.

OBDII Code U0106 Buick - Lost Communication With Glow Plug Control Module - AutoCodes.com — U0106 Buick Code - Lost Communication With Glow Plug Control Module

What does this mean?

What are the Possible Causes of the DTC U0106 Buick?

Faulty Glow Plug Control Module
Glow Plug Control Module harness is open or shorted
Glow Plug Control Module circuit poor electrical connection

How to Fix the DTC U0106 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 U0106 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 U0106 Buick Code

1. What are the common symptoms of OBDII code U0106 in a Buick related to lost communication with the glow plug control module?

- Common symptoms include difficulty starting the engine, poor engine performance, and the glow plug indicator light staying illuminated.

2. What are the possible causes of the U0106 code in a Buick?

- The U0106 code can be triggered by issues such as a faulty glow plug control module, damaged wiring or connectors, or a communication network malfunction.

3. How can I diagnose the U0106 code in my Buick?

- To diagnose the U0106 code, you can use an OBDII scanner to retrieve the specific error codes, check the glow plug control module and related components for physical damage, and inspect the wiring for any signs of wear or corrosion.

4. Can I still drive my Buick with the U0106 code present?

- It is not recommended to drive your Buick with the U0106 code active, as it can lead to engine starting issues and poor performance. It is best to address the underlying problem as soon as possible.

5. How can I repair the U0106 code in my Buick?

- Repairing the U0106 code typically involves replacing the faulty glow plug control module, repairing or replacing damaged wiring or connectors, and clearing the error codes with an OBDII scanner.

6. Are there any DIY tips for fixing the U0106 code in a Buick?

- While some basic troubleshooting like checking for loose connections or damaged wires can be done DIY, it is recommended to consult a professional mechanic for an accurate diagnosis and repair of the U0106 code.

7. Can a weak battery cause the U0106 code to appear in a Buick?

- Yes, a weak or failing battery can sometimes cause communication errors and trigger the U0106 code. It's a good idea to have the battery tested as part of the diagnostic process.

8. How long does it take to repair the U0106 code in a Buick?

- The repair time for the U0106 code can vary depending on the exact cause of the issue and the extent of repairs needed. It could take anywhere from a few hours to a full day to complete the repair.

9. Will the U0106 code reset itself after repair in a Buick?

- After the underlying issue causing the U0106 code is repaired, you can use an OBDII scanner to clear the error codes. Once cleared, the code should not reappear if the repair was successful.

10. Is it necessary to visit a dealership for the repair of the U0106 code in a Buick?

- While a dealership may have specialized knowledge and tools for Buick vehicles, an experienced independent mechanic can also effectively diagnose and repair the U0106 code in your Buick.