U007F 2016 GMC Sierra Code - Control Module Communication FlexRay 1B 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
- U007F 2016 GMC Sierra indicates Control Module Communication FlexRay 1B 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.
Code U007F 2016 GMC Sierra Description
What are the Possible Causes of the DTC U007F 2016 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 U007F 2016 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 U007F 2016 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.
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Frequently Asked Questions about U007F 2016 GMC Sierra Code
What does the OBDII code U007F mean on a 2016 GMC Sierra?
The code U007F indicates a communication failure on the FlexRay 1B bus, which is used for high-speed data transfer between control modules in the vehicle.
What are the symptoms of U007F on a 2016 GMC Sierra?
Symptoms may include warning lights on the dashboard (e.g., check engine or service stability), erratic vehicle operation, or loss of communication with certain control modules.
What causes the U007F code to appear?
Common causes include damaged or corroded FlexRay wiring, a faulty control module, poor electrical connections, or a failed FlexRay communication chip.
Can I drive my 2016 GMC Sierra with the U007F code?
It is not recommended to drive the vehicle until the issue is resolved, as it can affect critical systems like stability control and powertrain communication.
How do you diagnose the U007F code on a GMC Sierra?
Diagnosis typically involves scanning for related codes, inspecting FlexRay wiring and connectors, testing the continuity of the bus, and checking for control module faults.
Is the U007F code specific to the GMC Sierra?
No, U007F is a generic code that can occur on various vehicles equipped with FlexRay communication systems, but the troubleshooting steps may vary by manufacturer.
What tools are needed to fix the U007F code?
A professional-grade scan tool capable of reading FlexRay communication, a multimeter for electrical testing, and possibly an oscilloscope to analyze signal integrity may be required.
How much does it cost to repair a U007F code?
Repair costs can vary widely depending on the root cause, ranging from $100 for minor wiring repairs to over $1,000 if a control module needs replacement.
Can a software update fix the U007F code?
In some cases, a software update from the manufacturer can resolve communication issues, but this depends on the specific nature of the problem.
What happens if the U007F code is ignored?
Ignoring this code can lead to further communication failures, reduced functionality of critical systems, and potential safety risks while driving.
Discuss the causes and fixes for U007F 2016 GMC Sierra OBDII Code
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