Engine-Codes.com
Engine-Codes – GMC – U007F 2014 GMC Sierra

U007F 2014 GMC Sierra Code - Control Module Communication FlexRay 1B Bus Off

Quick Answer

The U007F code on a 2014 GMC Sierra indicates an issue with the Control Module Communication FlexRay 1B Bus being off. Common causes include Faulty control module, Damaged wiring or connectors in the FlexRay communication network, Corrosion or water damage in the connectors. 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
U007F 2014 GMC Sierra indicates Control Module Communication FlexRay 1B Bus Off.
Common causes
Common causes include Faulty control module, Damaged wiring or connectors in the FlexRay communication network, Corrosion or water damage in the connectors.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code U007F 2014 GMC Sierra Description

The U007F code on a 2014 GMC Sierra indicates an issue with the Control Module Communication FlexRay 1B Bus being off. This means that there is a communication problem between the various control modules in the vehicle that are connected to the FlexRay communication bus. The FlexRay system is a high-speed communication network used in modern vehicles to allow different modules to communicate and share data.

OBDII Code U007F 2014 GMC Sierra - Control Module Communication FlexRay 1B Bus Off
U007F 2014 GMC Sierra Code - Control Module Communication FlexRay 1B Bus Off

Common Causes of U007F 2014 GMC Sierra

  1. Faulty control module
  2. Damaged wiring or connectors in the FlexRay communication network
  3. Corrosion or water damage in the connectors
  4. Electrical interference or signal disruption
  5. Software glitches or updates needed for the control modules

Symptoms of U007F 2014 GMC Sierra

  1. Check engine light illuminated
  2. Reduced engine performance
  3. Transmission shifting issues
  4. ABS or traction control system malfunctions
  5. Inability to communicate with certain control modules

How to Fix U007F 2014 GMC Sierra

  1. Diagnose the issue using a diagnostic scanner to pinpoint the exact cause of the communication failure.
  2. Inspect wiring, connectors, and control modules for any damage or corrosion. Repair or replace as needed.
  3. Check for any software updates for the control modules and perform updates if necessary.
  4. Reset the control modules and clear the code from the system.
  5. Test drive the vehicle to ensure the issue is resolved and the communication bus is functioning correctly.

Cost to Fix U007F 2014 GMC Sierra

The cost of repairing a U007F code on a 2014 GMC Sierra can vary depending on the exact cause of the issue and the labor rates at the auto repair shop. Generally, the repair costs can range from $100 to $500, including parts and labor. However, it's essential to check with local repair shops for precise estimates based on your specific vehicle and location. Keep in mind that diagnostic time and labor rates can influence the total cost of the repair.

Need more information about the U007F 2014 GMC Sierra code?

Need more information on how to fix the U007F 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U007F 2014 GMC Sierra 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 U007F 2014 GMC Sierra Code

1. What does the OBDII code U007F for a 2014 GMC Sierra mean?

The code U007F indicates a Control Module Communication FlexRay 1B Bus Off error on a 2014 GMC Sierra.

2. What are the common symptoms associated with the U007F code in a 2014 GMC Sierra?

Common symptoms of the U007F code may include communication issues with various control modules, loss of certain vehicle functions, warning lights on the dashboard, and potential drivability issues.

3. What are the possible causes of the U007F code on a 2014 GMC Sierra?

The U007F code in a 2014 GMC Sierra can be triggered by issues such as damaged wiring, faulty control modules, loose connections, software glitches, or problems with the FlexRay communication network.

4. How can I diagnose the U007F code on my 2014 GMC Sierra?

Diagnosing the U007F code typically involves using a diagnostic scanner to retrieve the specific error codes, checking the integrity of the wiring harness, inspecting the control modules for any signs of damage, and verifying the connections within the FlexRay communication network.

5. Can I still drive my 2014 GMC Sierra with the U007F code present?

While it may be possible to drive the vehicle with the U007F code present, it is recommended to address the underlying issue promptly to prevent potential safety hazards and further damage to the vehicle's systems.

6. How can I repair the U007F code on my 2014 GMC Sierra?

Repairing the U007F code may involve repairing or replacing damaged wiring, addressing any issues with the control modules, ensuring proper connections within the FlexRay network, and performing any necessary software updates or reprogramming.

7. Is it safe to clear the U007F code on my 2014 GMC Sierra with a diagnostic tool?

Clearing the U007F code with a diagnostic tool is generally safe after addressing the underlying issue. However, if the problem persists, it is essential to diagnose and repair the root cause to prevent the code from reappearing.

8. Do I need special tools to fix the U007F code on my 2014 GMC Sierra?

Diagnosing and repairing the U007F code may require specialized diagnostic tools, such as a professional-grade scanner capable of reading manufacturer-specific codes and accessing communication networks like FlexRay.

9. How much does it cost to fix the U007F code on a 2014 GMC Sierra?

The cost of fixing the U007F code on a 2014 GMC Sierra can vary depending on the root cause of the issue, the extent of the repairs needed, and whether any components require replacement. It is advisable to consult a professional mechanic for a detailed estimate.

10. Can the U007F code on a 2014 GMC Sierra be prevented in the future?

While some causes of the U007F code may be unavoidable, regular maintenance, timely repairs of related issues, and careful handling of the vehicle's electronic systems can help prevent the recurrence of the U007F code in the future.

Discuss the causes and fixes for U007F 2014 GMC Sierra OBDII Code

Submit a New Comment

Code U007F 2014 GMC Sierra comments

No comments found for this page.