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Engine-Codes – GMC – U0075 2017 GMC Sierra

U0075 2017 GMC Sierra Code - Control Module Communication Object Detection CAN Bus Off

Quick Answer

The U0075 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a problem with the Control Module Communication Object Detection CAN Bus Off. Common causes include Faulty control module, Damaged wiring or connectors in the CAN bus system, Software glitches in control modules. 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
U0075 2017 GMC Sierra indicates Control Module Communication Object Detection CAN Bus Off.
Common causes
Common causes include Faulty control module, Damaged wiring or connectors in the CAN bus system, Software glitches in control modules.
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 17, 2024
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Code U0075 2017 GMC Sierra Description

The U0075 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a problem with the Control Module Communication Object Detection CAN Bus Off. This code specifically points to a communication issue within the Controller Area Network (CAN) bus system of the vehicle. The CAN bus is a network that allows various control modules in the vehicle to communicate with each other. When the CAN bus is "off," it means that there is a disruption in the communication between these modules.

OBDII Code U0075 2017 GMC Sierra - Control Module Communication Object Detection CAN Bus Off
U0075 2017 GMC Sierra Code - Control Module Communication Object Detection CAN Bus Off

Common Causes of U0075 2017 GMC Sierra

  1. Faulty control module
  2. Damaged wiring or connectors in the CAN bus system
  3. Software glitches in control modules
  4. Power supply issues to control modules
  5. Water or corrosion damage to control module connectors

Symptoms of U0075 2017 GMC Sierra

  1. Check Engine Light illuminated
  2. Loss of communication with one or more control modules
  3. Erratic behavior of vehicle systems (e.g., erratic shifting, ABS malfunctions)
  4. Inability to start the vehicle
  5. Reduced fuel efficiency

How to Fix U0075 2017 GMC Sierra

  1. Perform a comprehensive diagnostic scan to retrieve all stored codes and identify the specific control module(s) affected.
  2. Inspect the wiring and connectors in the CAN bus system for any damage or corrosion. Repair or replace as necessary.
  3. Check the power supply to the control modules and ensure proper voltage levels.
  4. Update control module software if applicable.
  5. Replace any faulty control modules identified during the diagnostic process.

Cost to Fix U0075 2017 GMC Sierra

The typical repair costs for addressing a U0075 code in a 2017 GMC Sierra can vary depending on the specific cause of the communication issue. In general, parts and labor for this type of repair can range from $200 to $800 or more. It's important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, but rates may be higher at dealerships or in metropolitan areas, while independent shops may offer lower rates. For a more precise estimate, it's recommended to consult with a local auto repair shop.

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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 U0075 2017 GMC Sierra Code

1. What does the OBDII code U0075 for a 2017 GMC Sierra mean?

The code U0075 indicates a Control Module Communication Object Detection CAN Bus Off error in the vehicle's communication network.

2. What are some common symptoms of the U0075 code in a 2017 GMC Sierra?

Common symptoms of the U0075 code may include issues with the vehicle's transmission shifting erratically, loss of power steering assist, or various warning lights appearing on the dashboard.

3. What are possible causes of the U0075 code in a 2017 GMC Sierra?

Potential causes of the U0075 code include faulty control modules, damaged wiring or connectors in the CAN bus system, software glitches, or a malfunctioning powertrain control module (PCM).

4. How can I diagnose the U0075 code in my 2017 GMC Sierra?

Diagnosing the U0075 code typically involves using a diagnostic scanner to read the code, checking for any related codes, inspecting the CAN bus system for damage, and testing the control modules for proper communication.

5. Can I still drive my 2017 GMC Sierra with the U0075 code present?

It is not recommended to drive your vehicle with the U0075 code present, as it can lead to potential safety hazards and further damage to the vehicle's systems. It's best to address the issue promptly.

6. How can I repair the U0075 code in my 2017 GMC Sierra?

Repairing the U0075 code may involve repairing or replacing damaged wiring or connectors in the CAN bus system, updating control module software, or replacing faulty control modules as needed.

7. Will resetting the trouble codes make the U0075 code go away?

Simply resetting the trouble codes may temporarily clear the U0075 code, but if the underlying issue causing the code is not resolved, it is likely to reappear once the vehicle is driven again.

8. Can a DIY enthusiast fix the U0075 code in a 2017 GMC Sierra?

While some aspects of diagnosing and repairing the U0075 code may be possible for a knowledgeable DIY enthusiast with the right tools and resources, complex issues may require professional assistance.

9. How much does it cost to repair the U0075 code in a 2017 GMC Sierra?

The cost of repairing the U0075 code can vary depending on the specific cause of the issue, the extent of the damage, and whether any parts need to be replaced. It's advisable to obtain a professional diagnosis for an accurate estimate.

10. How can I prevent the U0075 code from recurring in my 2017 GMC Sierra?

To prevent the U0075 code from recurring, it's essential to address any underlying issues promptly, perform regular maintenance on the vehicle's communication systems, and follow the manufacturer's recommended service schedule.

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