AutoCodes – Chevrolet – U007B 2016 Chevrolet Silverado

U007B 2016 Chevrolet Silverado Code - Control Module Communication High Speed Extension CAN Bus Off

Quick Answer

The devices connected to the object high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Check for more codes, Faulty Control Module, Control Module harness is open or shorted. 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: U007B 2016 Chevrolet Silverado indicates Control Module Communication High Speed Extension CAN Bus Off.
Common causes: Common causes include Check for more codes, Faulty Control Module, Control Module harness is open or shorted.
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 218

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jul 20, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U007B 2016 Chevrolet Silverado Description

The devices connected to the object 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 devices when the ignition switch is in any position other than OFF. The object high speed GMLAN serial data bus uses terminating resistors that are in parallel with the object high speed GMLAN (+) and (-) circuits. The Diagnostic Trouble Code (DTC) sets when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U007B 2016 Chevrolet Silverado - Control Module Communication High Speed Extension CAN Bus Off - AutoCodes.com — U007B 2016 Chevrolet Silverado Code - Control Module Communication High Speed Extension CAN Bus Off

What does this mean?

What are the Possible Causes of the DTC U007B 2016 Chevrolet Silverado?

Check for more codes
Faulty Control Module
Control Module harness is open or shorted
Control Module circuit poor electrical connection

How to Fix the DTC U007B 2016 Chevrolet Silverado?

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 U007B 2016 Chevrolet Silverado 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 U007B 2016 Chevrolet Silverado code?

Need more information on how to fix the U007B 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U007B 2016 Chevrolet Silverado 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 U007B 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code U007B in a 2016 Chevrolet Silverado?

- Common symptoms include issues with various control modules not communicating properly, dashboard warning lights illuminating, and possible vehicle performance issues.

2. What does the U007B code mean for a 2016 Chevrolet Silverado?

- The code U007B indicates that there is a communication problem on the High Speed Extension CAN Bus network between control modules in the vehicle.

3. What are the possible causes of the U007B trouble code in a 2016 Chevrolet Silverado?

- Possible causes include wiring issues, faulty control modules, loose connections, damaged CAN bus lines, or a malfunctioning CAN bus network.

4. How can I diagnose the U007B code in my 2016 Chevrolet Silverado?

- Diagnosing the code typically involves using a diagnostic scanner to check for other trouble codes, inspecting the wiring and connections, and performing tests on the control modules and CAN bus network.

5. Can I continue driving my 2016 Chevrolet Silverado with the U007B trouble code?

- It is not recommended to drive the vehicle with the U007B code present, as it can lead to further electrical issues and potential safety hazards.

6. What are some repair tips for fixing the U007B code in a 2016 Chevrolet Silverado?

- Repair tips may include checking and repairing any damaged wiring or connections, replacing faulty control modules, ensuring proper grounding, and reprogramming control modules if necessary.

7. Is it possible to reset the U007B trouble code in a 2016 Chevrolet Silverado without fixing the underlying issue?

- While you can clear the code with a diagnostic scanner, it is important to address the root cause of the problem to prevent the code from reoccurring.

8. How much does it typically cost to repair the U007B trouble code in a 2016 Chevrolet Silverado?

- The cost of repairs can vary depending on the specific issue causing the code, but it may involve labor costs for diagnosis and repair, as well as the price of any replacement parts needed.

9. Can a DIY enthusiast fix the U007B code issue in a 2016 Chevrolet Silverado?

- While some basic troubleshooting and repairs may be possible for DIY enthusiasts, diagnosing and fixing complex electrical issues like the U007B code may require professional expertise and specialized tools.

10. How can I prevent the U007B trouble code from appearing in my 2016 Chevrolet Silverado in the future?

- Regular maintenance, timely repairs of any wiring or connection issues, and ensuring proper handling of control modules can help prevent the recurrence of the U007B trouble code.