AutoCodes – GMC – U0076 2017 GMC Sierra

U0076 2017 GMC Sierra Code - Control Module Communication Powertrain Sensor 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: U0076 2017 GMC Sierra indicates Control Module Communication Powertrain Sensor 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 342

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 U0076 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 U0076 2017 GMC Sierra - Control Module Communication Powertrain Sensor CAN Bus Off - AutoCodes.com — U0076 2017 GMC Sierra Code - Control Module Communication Powertrain Sensor CAN Bus Off

What does this mean?

What are the Possible Causes of the DTC U0076 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 U0076 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 U0076 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 U0076 2017 GMC Sierra code?

Need more information on how to fix the U0076 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U0076 2017 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 U0076 2017 GMC Sierra Code

1. What does the OBDII code U0076 for a 2017 GMC Sierra mean?

The code U0076 indicates a Control Module Communication Powertrain Sensor CAN Bus Off error.

2. What are the common symptoms of the U0076 code in a 2017 GMC Sierra?

Common symptoms include issues with the transmission, engine performance, and other powertrain-related functions.

3. What can cause the U0076 code to appear in a 2017 GMC Sierra?

Possible causes of the U0076 code include a faulty powertrain control module (PCM), problems with the Controller Area Network (CAN) bus, wiring issues, or a malfunctioning sensor.

4. How serious is the U0076 code in a 2017 GMC Sierra?

The U0076 code should be addressed promptly to prevent potential drivability issues and further damage to the vehicle's powertrain systems.

5. How do you diagnose the U0076 code in a 2017 GMC Sierra?

Diagnosis typically involves using a professional OBDII scanner to retrieve the code, checking the powertrain control module for any faults, and inspecting the CAN bus and sensor connections for issues.

6. Can I drive my 2017 GMC Sierra with the U0076 code present?

It is not recommended to drive with the U0076 code active, as it may lead to performance issues or potential safety hazards.

7. How do you repair the U0076 code in a 2017 GMC Sierra?

Repairing the U0076 code may involve addressing the underlying cause, such as replacing a faulty sensor, repairing wiring issues, or reprogramming the powertrain control module.

8. Can a DIY enthusiast fix the U0076 code in a 2017 GMC Sierra?

While some minor repairs related to the U0076 code may be possible for experienced DIY enthusiasts, it is advisable to seek professional help for accurate diagnosis and repair.

9. How much does it cost to fix the U0076 code in a 2017 GMC Sierra?

The cost of repairing the U0076 code can vary depending on the specific issue causing the code, the labor rates in your area, and the parts needed for the repair.

10. How can I prevent the U0076 code from recurring in my 2017 GMC Sierra?

Regular maintenance, timely repairs of sensor and wiring issues, and proper care of the vehicle's powertrain systems can help prevent the U0076 code from reappearing.