AutoCodes – GMC – U0075 2015 GMC Sierra

U0075 2015 GMC Sierra Code - Control Module Communication Object Detection 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
U0075 2015 GMC Sierra indicates Control Module Communication Object Detection 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 172
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 19, 2023
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Code U0075 2015 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 U0075 2015 GMC Sierra - Control Module Communication Object Detection CAN Bus Off - AutoCodes.com
U0075 2015 GMC Sierra Code - Control Module Communication Object Detection CAN Bus Off

What are the Possible Causes of the DTC U0075 2015 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 U0075 2015 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 U0075 2015 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 U0075 2015 GMC Sierra code?

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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 U0075 2015 GMC Sierra Code

1. What does the OBDII code U0075 mean on a 2015 GMC Sierra?

The U0075 code indicates a communication problem on the Control Area Network (CAN) bus, specifically related to the Object Detection Control Module.

2. What are the common symptoms of the U0075 code on a 2015 GMC Sierra?

Symptoms may include warning lights on the dashboard, issues with blind-spot monitoring or park assist, and intermittent or complete loss of communication with certain modules.

3. What causes the U0075 code to appear on a 2015 GMC Sierra?

Possible causes include a faulty Object Detection Control Module, damaged or corroded CAN bus wiring, poor electrical connections, or a malfunctioning module elsewhere on the CAN network.

4. Can a weak battery cause the U0075 code on a GMC Sierra?

Yes, a weak or failing battery can lead to insufficient voltage, which may disrupt CAN bus communication and trigger the U0075 code.

5. How do I diagnose the U0075 code on a 2015 GMC Sierra?

Start by inspecting the CAN bus wiring for damage or corrosion, check all associated connectors, and verify the battery voltage. Use a scan tool to check for communication with the affected modules.

6. Can I still drive my 2015 GMC Sierra with the U0075 code?

While the vehicle may still be drivable, features like blind-spot monitoring or park assist may not function properly, which could impact safety.

7. How do I fix the U0075 code on a 2015 GMC Sierra?

Repairs might include fixing damaged wiring, cleaning or securing loose connections, reprogramming a module, or replacing the faulty Object Detection Control Module.

8. How much does it cost to repair the U0075 code on a GMC Sierra?

Repair costs vary depending on the issue. Wiring repairs might cost $100-$300, while module replacement could cost $500-$1,000 or more, including labor.

9. Can a software update resolve the U0075 code on a 2015 GMC Sierra?

In some cases, a software update or reprogramming of the control module may resolve communication errors on the CAN bus.

10. Will clearing the U0075 code with a scan tool fix the problem?

Clearing the code will erase it temporarily, but if the underlying issue is not addressed, the code will likely return.

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