U007E Chevrolet 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 Chevrolet 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 Chevrolet Description
What are the Possible Causes of the DTC U007E Chevrolet?
- 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 Chevrolet?
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 Chevrolet 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 Chevrolet Models
- U007E 2014 Chevrolet Silverado — Control Module Communication FlexRay 1A Bus Off
- U007E 2015 Chevrolet Silverado — Control Module Communication FlexRay 1A Bus Off
- U007E 2016 Chevrolet Silverado — Control Module Communication FlexRay 1A Bus Off
- U007E 2017 Chevrolet Silverado — Control Module Communication FlexRay 1A Bus Off
- U007E 2018 Chevrolet Silverado — Control Module Communication FlexRay 1A Bus Off
Frequently Asked Questions about U007E Chevrolet Code
What does OBD-II code U007E mean on a Chevrolet?
Code U007E indicates a communication issue between control modules on the vehicle's FlexRay bus system, specifically "FlexRay 1A Bus Off," meaning the bus has stopped functioning properly.
What are the common symptoms of code U007E in a Chevrolet?
Symptoms may include warning lights on the dashboard, erratic vehicle behavior, loss of communication with certain control modules, or failure of specific systems like ABS, transmission, or stability control.
What causes code U007E in a Chevrolet?
Causes can include damaged wiring or connectors in the FlexRay communication network, module software issues, failed control modules, or electromagnetic interference affecting the system.
How can I diagnose code U007E in a Chevrolet?
Diagnosis typically involves using a scan tool to check for related codes, inspecting wiring and connectors for damage, verifying the integrity of the FlexRay bus, and testing individual control modules for faults.
Can I drive my Chevrolet with code U007E?
While it may be possible to drive the vehicle, issues with communication between control modules could impact safety-critical systems, so it's recommended to address the problem promptly.
How do I fix code U007E in a Chevrolet?
Repairs may include replacing damaged wiring or connectors, reprogramming or replacing faulty control modules, or resetting the FlexRay communication system using a scan tool.
What is the FlexRay communication bus in a Chevrolet?
FlexRay is a high-speed communication protocol used in modern vehicles to enable data exchange between control modules for systems like braking, steering, and stability control.
Can a weak battery cause code U007E in a Chevrolet?
Yes, a weak or failing battery can cause voltage fluctuations that disrupt communication between control modules, potentially triggering code U007E.
How much does it cost to fix code U007E in a Chevrolet?
Repair costs vary depending on the root cause, ranging from $100 for minor wiring repairs to over $1,000 if control module replacement and programming are required.
Should I reset the FlexRay system to clear code U007E?
Resetting the system may clear the code temporarily, but it’s important to diagnose and repair the underlying issue to prevent recurrence.
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