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U0075 2018 Chevrolet Silverado Code - Control Module Communication Object Detection CAN Bus Off

Quick Answer

The U0075 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado indicates an issue with the Control Module Communication Object Detection CAN Bus Off. Common causes include Faulty control module, Wiring or connection issues in the CAN bus system, Software glitches or updates. 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 2018 Chevrolet Silverado indicates Control Module Communication Object Detection CAN Bus Off.
Common causes
Common causes include Faulty control module, Wiring or connection issues in the CAN bus system, Software glitches or updates.
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 11, 2024
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Code U0075 2018 Chevrolet Silverado Description

The U0075 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado indicates an issue with the Control Module Communication Object Detection CAN Bus Off. This code specifically points to a problem with the communication system within the vehicle. The Controller Area Network (CAN) bus is a communication network that allows various control modules within a 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 2018 Chevrolet Silverado - Control Module Communication Object Detection CAN Bus Off
U0075 2018 Chevrolet Silverado Code - Control Module Communication Object Detection CAN Bus Off

Common Causes of U0075 2018 Chevrolet Silverado

  1. Faulty control module
  2. Wiring or connection issues in the CAN bus system
  3. Software glitches or updates
  4. Electrical interference or shorts
  5. Water damage or corrosion in the control module connectors

Symptoms of U0075 2018 Chevrolet Silverado

  1. Check engine light illuminated on the dashboard
  2. Loss of communication with various control modules
  3. Erratic behavior of electronic components (e.g., power windows, door locks)
  4. Reduced fuel efficiency
  5. Inability to start the vehicle

How to Fix U0075 2018 Chevrolet Silverado

  1. Perform a comprehensive diagnostic scan to identify the specific control module causing the communication issue.
  2. Inspect the wiring and connections in the CAN bus system for any damage or corrosion.
  3. Update the software in the affected control modules to address any glitches or compatibility issues.
  4. Replace any faulty control modules or repair damaged wiring as needed.
  5. Clear the DTC and perform a test drive to ensure that the communication between control modules is restored.

Cost to Fix U0075 2018 Chevrolet Silverado

The cost of repairing the U0075 code on a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the typical repair costs for this type of communication problem can range from $200 to $800, including parts and labor. However, 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. It is advisable to consult with a trusted mechanic or dealership for a more precise estimate based on your specific situation.

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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 2018 Chevrolet Silverado Code

1. What does the OBDII code U0075 on a 2018 Chevrolet Silverado mean?

The code U0075 indicates a communication problem with the Control Module Communication Object Detection CAN Bus Off in your vehicle.

2. What are the common symptoms of a U0075 code in a 2018 Chevrolet Silverado?

Common symptoms of a U0075 code may include the check engine light coming on, loss of communication with certain control modules, and issues with vehicle performance.

3. What are the possible causes of a U0075 code in a 2018 Chevrolet Silverado?

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

4. How can I diagnose a U0075 code in my 2018 Chevrolet Silverado?

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

5. Can I still drive my 2018 Chevrolet Silverado with a U0075 code?

It is not recommended to drive your vehicle with a U0075 code present, as it can affect the communication between critical control modules and potentially impact the vehicle's performance and safety.

6. How can I repair a U0075 code in my 2018 Chevrolet Silverado?

Repairing a U0075 code may involve repairing or replacing damaged wiring or connectors, reprogramming control modules, or replacing faulty control modules as needed.

7. Is it possible to clear a U0075 code in a 2018 Chevrolet Silverado without fixing the underlying issue?

Clearing a U0075 code without addressing the underlying issue is not recommended, as the problem is likely to reoccur and could lead to further issues with the vehicle's communication system.

8. Are there any recalls or technical service bulletins related to the U0075 code in a 2018 Chevrolet Silverado?

It's recommended to check with a Chevrolet dealership or online resources for any recalls or technical service bulletins related to the U0075 code in your specific vehicle to see if there are any known issues or remedies.

9. Can a DIY enthusiast fix a U0075 code in a 2018 Chevrolet Silverado?

While some DIY enthusiasts may have the skills and tools to diagnose and repair a U0075 code, it's recommended to consult with a professional mechanic or dealership for proper diagnosis and repair to ensure the issue is resolved correctly.

10. How much can it cost to repair a U0075 code in a 2018 Chevrolet Silverado?

The cost of repairing a U0075 code can vary depending on the underlying cause and the extent of the repairs needed. It's advisable to obtain a professional diagnosis to get an accurate estimate of the repair costs for your specific situation.

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