U007E GMC Code - Control Module Communication FlexRay 1A 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
- U007E GMC indicates Control Module Communication FlexRay 1A 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 U007E GMC Description
What are the Possible Causes of the DTC U007E GMC?
- 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 U007E GMC?
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 U007E GMC 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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Information for Specific GMC Models
- U007E 2014 GMC Sierra — Control Module Communication FlexRay 1A Bus Off
- U007E 2015 GMC Sierra — Control Module Communication FlexRay 1A Bus Off
- U007E 2016 GMC Sierra — Control Module Communication FlexRay 1A Bus Off
- U007E 2017 GMC Sierra — Control Module Communication FlexRay 1A Bus Off
- U007E 2018 GMC Sierra — Control Module Communication FlexRay 1A Bus Off
Frequently Asked Questions about U007E GMC Code
What does the OBD-II code U007E mean on a GMC vehicle?
Code U007E indicates an issue with the FlexRay communication network, specifically that the Control Module Communication FlexRay 1A Bus is offline or experiencing a fault.
What are common symptoms of the U007E code on a GMC?
Symptoms may include warning lights on the dashboard, lack of communication with certain modules, erratic vehicle behavior, or failure of systems like ABS or traction control.
What causes the U007E code to appear on GMC vehicles?
Common causes include damaged or corroded FlexRay wiring, faulty control modules, poor electrical connections, or software issues within the vehicle's network.
Can driving with a U007E code cause further damage?
Yes, driving with the U007E code can result in malfunctioning vehicle systems and may compromise safety features like stability control or braking assistance.
How do you diagnose a U007E code on a GMC?
Diagnosis involves inspecting the FlexRay network wiring, checking for loose or corroded connectors, scanning for related codes, and verifying module communication with a diagnostic tool.
What repair steps can resolve the U007E code on a GMC?
Repairs may include replacing damaged wiring, cleaning corroded connections, updating module software, or replacing a faulty control module.
Can a faulty battery cause a U007E code on GMC vehicles?
Yes, a weak or failing battery can disrupt communication within the FlexRay network, potentially triggering the U007E code.
How much does it cost to fix the U007E code on a GMC?
Repair costs vary depending on the root cause, ranging from $100 for minor wiring repairs to over $1,000 for control module replacement.
Is the U007E code common on GMC vehicles?
The U007E code is less common but can occur in GMC models equipped with advanced communication networks like FlexRay.
Can a software update fix the U007E code on a GMC?
Yes, if the issue is related to a software glitch, updating the affected control module may resolve the problem.
Discuss the causes and fixes for U007E GMC OBDII Code
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