AutoCodes – Cadillac – U007E Cadillac

U007E Cadillac 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 Cadillac 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.

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Code Popularity 492

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
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Code U007E Cadillac 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 U007E Cadillac - Control Module Communication FlexRay 1A Bus Off - AutoCodes.com — U007E Cadillac Code - Control Module Communication FlexRay 1A Bus Off

What does this mean?

What are the Possible Causes of the DTC U007E Cadillac?

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 Cadillac?

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 Cadillac 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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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 U007E Cadillac Code

1. What does the OBDII code U007E Cadillac mean?

The code U007E for Cadillac indicates a problem with the Control Module Communication FlexRay 1A Bus Off.

2. What are the common symptoms of the U007E Cadillac code?

Common symptoms of U007E code may include communication failures between control modules, dashboard warning lights, and issues with vehicle performance.

3. What are the possible causes of the U007E Cadillac trouble code?

Potential causes of the U007E code include faulty control modules, wiring issues, damaged FlexRay bus communication lines, or a malfunctioning FlexRay communication module.

4. How do I diagnose the U007E Cadillac code?

Diagnosing the U007E code typically involves using a diagnostic scanner to retrieve the specific code, checking for other related trouble codes, and conducting a thorough inspection of the vehicle's communication system components.

5. Can I still drive my Cadillac with the U007E code present?

It is not recommended to drive your Cadillac with the U007E code present, as it may lead to further issues and potential safety hazards. It is best to address the problem promptly.

6. How can I repair the U007E Cadillac trouble code?

Repairing the U007E code involves identifying and fixing the root cause of the communication issue, which may include repairing or replacing faulty control modules, repairing damaged wiring, or addressing any other related component failures.

7. Are there any DIY tips for troubleshooting the U007E code?

While some basic troubleshooting steps can be taken, diagnosing and repairing the U007E code often requires specialized tools and expertise. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

8. Is the U007E Cadillac code a common issue in Cadillac vehicles?

The U007E code related to Control Module Communication FlexRay 1A Bus Off is not as common as other OBDII codes, but it can occur in Cadillac vehicles due to communication system failures.

9. Can a software update fix the U007E Cadillac trouble code?

In some cases, a software update provided by the manufacturer may address communication issues related to the U007E code. Consult with a Cadillac dealership or authorized service center for more information.

10. How can I prevent the U007E code from recurring in my Cadillac?

To prevent the U007E trouble code from recurring, it is essential to maintain regular vehicle inspections, address any communication system issues promptly, and follow recommended maintenance schedules provided by Cadillac.