U007E 2016 GMC Sierra Code - Control Module Communication FlexRay 1A Bus Off
Quick Answer
The U007E diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a Control Module Communication FlexRay 1A Bus Off error. Common causes include Faulty control module(s) on the FlexRay network, Wiring or connector issues disrupting communication, Electrical interference or noise affecting the FlexRay system. 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
- U007E 2016 GMC Sierra indicates Control Module Communication FlexRay 1A Bus Off.
- Common causes
- Common causes include Faulty control module(s) on the FlexRay network, Wiring or connector issues disrupting communication, Electrical interference or noise affecting the FlexRay system.
- 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 U007E 2016 GMC Sierra Description
The U007E diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a Control Module Communication FlexRay 1A Bus Off error. This means that there is a communication issue with the FlexRay network, which is a high-speed communication system used by various control modules in the vehicle to exchange data. The FlexRay system plays a crucial role in ensuring proper communication between different modules, such as the engine control module, transmission control module, anti-lock brake system module, and others.
Common Causes of U007E 2016 GMC Sierra
- Faulty control module(s) on the FlexRay network.
- Wiring or connector issues disrupting communication.
- Electrical interference or noise affecting the FlexRay system.
- Software glitches or programming errors.
- Physical damage to the FlexRay network components.
Symptoms of U007E 2016 GMC Sierra
- Check engine light illuminated on the dashboard.
- Loss of communication with certain control modules.
- Erratic behavior of vehicle systems, such as transmission shifting irregularities.
- Reduced fuel efficiency.
- Inability to access certain features or functions through the vehicle's interface.
How to Fix U007E 2016 GMC Sierra
- Begin by conducting a thorough inspection of the FlexRay network components, including control modules, wiring, connectors, and terminators.
- Use a diagnostic scan tool to identify the specific module or area causing the communication error.
- Address any wiring or connector issues, repairing or replacing damaged components as needed.
- Update software or reprogram control modules to ensure proper communication on the FlexRay network.
- Clear the DTC and perform a test drive to verify that the issue has been resolved.
Cost to Fix U007E 2016 GMC Sierra
The typical repair costs for addressing a U007E code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. In general, you can expect to pay anywhere from $200 to $500 for parts and labor. Keep in mind that diagnosis time and labor rates at auto repair shops can fluctuate based on location, vehicle make and model, and other factors. It's advisable to consult with a trusted mechanic or dealership to get a more accurate estimate for your particular situation.
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Frequently Asked Questions about U007E 2016 GMC Sierra Code
1. What does the OBDII code U007E mean on a 2016 GMC Sierra?
U007E indicates an issue with the Control Module Communication FlexRay 1A Bus, typically meaning the communication on this bus has been disrupted or is "off."
2. What are the common symptoms of code U007E in a 2016 GMC Sierra?
Symptoms may include warning lights on the dashboard, such as the Check Engine Light, reduced vehicle performance, or failure of certain electronic systems like ABS or traction control.
3. What causes the U007E code to appear on a 2016 GMC Sierra?
This code is often caused by a damaged wiring harness, faulty control module, poor electrical connections, or issues with the FlexRay communication network itself.
4. How do you diagnose the U007E code on a 2016 GMC Sierra?
Diagnosis involves using a scan tool to check for related codes, inspecting the FlexRay bus wiring and connectors, and testing the control modules for proper communication.
5. Can a faulty control module trigger the U007E code?
Yes, a malfunctioning control module that fails to send or receive signals on the FlexRay 1A Bus can trigger this code.
6. Is it safe to drive a 2016 GMC Sierra with the U007E code?
It may be unsafe to drive, depending on which systems are affected. Loss of critical functions like ABS or stability control could compromise safety.
7. How is the U007E code repaired on a 2016 GMC Sierra?
Repairs may include repairing or replacing damaged wiring, cleaning or reconnecting connectors, or replacing a faulty control module.
8. Can a dead battery cause the U007E code on a 2016 GMC Sierra?
A weak or dead battery can disrupt communication on the FlexRay network and potentially trigger this code.
9. How much does it cost to repair the U007E code on a 2016 GMC Sierra?
Costs vary widely depending on the issue. Wiring repairs may cost $100–$300, while replacing a control module can exceed $1,000, including programming.
10. Can clearing the code resolve the U007E issue on a 2016 GMC Sierra?
Clearing the code may work temporarily, but the underlying issue must be addressed to prevent the code from returning.
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