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U007C 2015 Chevrolet Silverado Code - Control Module Communication High Speed Extension CAN Bus 2 Off

Quick Answer

The U007C diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado refers to a Control Module Communication High Speed Extension CAN Bus 2 Off. Common causes include Faulty control module on the CAN bus 2 network, Loose or corroded wiring connections in the CAN bus system, Water intrusion or damage to wiring harnesses. 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
U007C 2015 Chevrolet Silverado indicates Control Module Communication High Speed Extension CAN Bus 2 Off.
Common causes
Common causes include Faulty control module on the CAN bus 2 network, Loose or corroded wiring connections in the CAN bus system, Water intrusion or damage to wiring harnesses.
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 20, 2024
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Code U007C 2015 Chevrolet Silverado Description

The U007C diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado refers to a Control Module Communication High Speed Extension CAN Bus 2 Off. This code indicates a communication error between control modules in the vehicle, specifically on the high-speed CAN bus 2 network. The Controller Area Network (CAN) bus is a critical communication system in modern vehicles that allows various control modules to exchange information and commands. When the CAN bus 2 network is disrupted or goes offline, it can lead to issues with the vehicle's performance and functionality.

OBDII Code U007C 2015 Chevrolet Silverado - Control Module Communication High Speed Extension CAN Bus 2 Off
U007C 2015 Chevrolet Silverado Code - Control Module Communication High Speed Extension CAN Bus 2 Off

Common Causes of U007C 2015 Chevrolet Silverado

  1. Faulty control module on the CAN bus 2 network
  2. Loose or corroded wiring connections in the CAN bus system
  3. Water intrusion or damage to wiring harnesses
  4. Software glitches or programming issues in control modules
  5. Electrical system malfunctions or battery voltage irregularities

Symptoms of U007C 2015 Chevrolet Silverado

  1. Check Engine Light illuminated on the dashboard
  2. ABS warning light or traction control light may come on
  3. Transmission shifting irregularities or harsh shifting
  4. Loss of power steering assist
  5. Inoperative airbag system

How to Fix U007C 2015 Chevrolet Silverado

  1. Begin by using a diagnostic scan tool to retrieve the specific trouble codes and identify the affected control module.
  2. Inspect the wiring harnesses and connectors in the CAN bus 2 network for any damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Check for water intrusion or other physical damage that may be affecting the communication system. Address any issues found.
  4. Update control module software or reprogram as needed to resolve any programming glitches.
  5. Clear the DTCs and perform a test drive to confirm that the issue has been resolved.

Cost to Fix U007C 2015 Chevrolet Silverado

The typical repair costs for addressing a U007C code on a 2015 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, the cost of parts for wiring repairs or control module replacements can range from $100 to $500 or more. Labor costs at auto repair shops typically range from $80 to $150 per hour, and the total repair bill could amount to several hundred dollars. It's advisable to consult with a trusted mechanic or dealership for an accurate estimate based on the vehicle's condition and the required repairs.

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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 U007C 2015 Chevrolet Silverado Code

1. What does the OBDII code U007C mean for a 2015 Chevrolet Silverado?

The code U007C indicates an issue with the Control Module Communication High Speed Extension CAN Bus 2 Off in your vehicle.

2. What are common symptoms of the U007C code in a 2015 Chevrolet Silverado?

Common symptoms of the U007C code may include issues with the vehicle's communication system, such as loss of communication between control modules, warning lights on the dashboard, and potentially poor vehicle performance.

3. What are possible causes of the U007C code in a 2015 Chevrolet Silverado?

Possible causes of the U007C code include damaged wiring or connectors in the CAN bus system, a faulty control module, or a software issue within the vehicle's communication network.

4. How can I diagnose the U007C code in my 2015 Chevrolet Silverado?

Diagnosing the U007C code typically involves using a professional OBDII scanner to retrieve the specific trouble code, inspecting the wiring and connectors in the CAN bus system, and conducting tests to identify the faulty control module.

5. Can I still drive my 2015 Chevrolet Silverado with the U007C code present?

It is not recommended to drive your vehicle with the U007C code present, as it may lead to further issues with the vehicle's communication system and potentially affect its overall performance and safety.

6. How can I repair the U007C code in my 2015 Chevrolet Silverado?

Repairing the U007C code may involve repairing or replacing damaged wiring and connectors, replacing the faulty control module, or updating the vehicle's software to address any communication network issues.

7. Is it necessary to reset the OBDII code U007C after repairing the issue in a 2015 Chevrolet Silverado?

Yes, it is important to reset the U007C code using an OBDII scanner after repairing the underlying issue. This will clear the code from the vehicle's memory and ensure proper functioning of the communication system.

8. Can a DIY enthusiast fix the U007C code in a 2015 Chevrolet Silverado?

While some basic troubleshooting steps can be taken by a DIY enthusiast, diagnosing and repairing the U007C code may require specialized tools and expertise, so it is recommended to consult a professional mechanic for assistance.

9. How much does it cost to repair the U007C code in a 2015 Chevrolet Silverado?

The cost of repairing the U007C code can vary depending on the specific underlying issue, the need for replacement parts, and labor costs. It is advisable to obtain quotes from different auto repair shops for an accurate estimate.

10. Will the U007C code in a 2015 Chevrolet Silverado cause the vehicle to fail an emissions test?

The U007C code may cause the vehicle to fail an emissions test, as it indicates a problem with the control module communication system. It is important to address and repair this issue before attempting an emissions test.

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