AutoCodes – Chevrolet – U007C 2015 Chevrolet Silverado

U007C 2015 Chevrolet Silverado Code - Control Module Communication High Speed Extension CAN Bus 2 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: U007C 2015 Chevrolet Silverado indicates Control Module Communication High Speed Extension CAN Bus 2 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 257

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

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

What does this mean?

What are the Possible Causes of the DTC U007C 2015 Chevrolet Silverado?

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 U007C 2015 Chevrolet Silverado?

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 U007C 2015 Chevrolet Silverado 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 U007C 2015 Chevrolet Silverado code?

Need more information on how to fix the U007C 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U007C 2015 Chevrolet Silverado 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 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.