AutoCodes – GMC – U007D 2017 GMC Sierra

U007D 2017 GMC Sierra Code - Control Module Communication Low 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: U007D 2017 GMC Sierra indicates Control Module Communication Low 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 315

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 Jul 20, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U007D 2017 GMC Sierra 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 U007D 2017 GMC Sierra - Control Module Communication Low Speed Extension CAN Bus Off - AutoCodes.com — U007D 2017 GMC Sierra Code - Control Module Communication Low Speed Extension CAN Bus Off

What does this mean?

What are the Possible Causes of the DTC U007D 2017 GMC Sierra?

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 U007D 2017 GMC Sierra?

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 U007D 2017 GMC Sierra 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 U007D 2017 GMC Sierra code?

Need more information on how to fix the U007D 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 U007D 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code U007D in a 2017 GMC Sierra?

- Common symptoms include intermittent or permanent loss of communication with various control modules, warning lights such as the Check Engine Light, and potential drivability issues.

2. What does the OBDII code U007D mean for a 2017 GMC Sierra?

- The code U007D indicates a communication issue between control modules, specifically low-speed CAN bus communication being off or disrupted.

3. What are the possible causes of OBDII code U007D in a 2017 GMC Sierra?

- Possible causes include damaged wiring or connectors in the CAN bus system, faulty control modules, low battery voltage, software issues, or a defective CAN bus network.

4. How can I diagnose the OBDII code U007D in my 2017 GMC Sierra?

- Diagnosis involves checking the wiring and connectors for damage, testing control modules for functionality, ensuring proper battery voltage, and using a diagnostic scanner to monitor communication signals.

5. Can I drive my 2017 GMC Sierra with the U007D code present?

- It is not recommended to drive the vehicle with the U007D code present, as it can lead to potential safety and drivability issues. It's best to address the problem promptly.

6. How can I repair OBDII code U007D in my 2017 GMC Sierra?

- Repair steps may include repairing or replacing damaged wiring, addressing faulty control modules, ensuring proper battery voltage, updating software, and resetting the communication system.

7. Can a DIY enthusiast fix the U007D code in a 2017 GMC Sierra?

- Depending on the underlying cause, some DIY enthusiasts may be able to address the U007D code by checking and repairing wiring, replacing control modules, or updating software. However, complex issues may require professional help.

8. Is resetting the OBDII code U007D in a 2017 GMC Sierra enough to fix the problem?

- Simply resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the communication problem. Proper diagnosis and repair are needed.

9. How common is the U007D code in a 2017 GMC Sierra?

- The U007D code is relatively uncommon but can occur due to various factors affecting the communication between control modules in a 2017 GMC Sierra.

10. Are there any preventative measures to avoid OBDII code U007D in a 2017 GMC Sierra?

- Regular maintenance, checking the electrical system for any signs of wear, and addressing any warning lights promptly can help prevent issues that may lead to the U007D code in a 2017 GMC Sierra.