AutoCodes – Buick – U3007 Buick

U3007 Buick Code - Control Module Supply Circuit 2

Quick Answer

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Common causes include Faulty Control Module setting the code, Control Module harness is open or shorted, Control Module circuit poor electrical connection. 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: U3007 Buick indicates Control Module Supply Circuit 2.
Common causes: Common causes include Faulty Control Module setting the code, Control Module harness is open or shorted, Control Module circuit poor electrical connection.
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 597

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 Jun 18, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U3007 Buick Description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. With the ignition is ON, the Diagnostic Trouble Code (DTC) will set when the control module or sensor detects a system voltage of less than approximately 9 V for approximately 5 s.

OBDII Code U3007 Buick - Control Module Supply Circuit 2 - AutoCodes.com — U3007 Buick Code - Control Module Supply Circuit 2

What does this mean?

What are the Possible Causes of the DTC U3007 Buick?

Faulty Control Module setting the code
Control Module harness is open or shorted
Control Module circuit poor electrical connection

How to Fix the DTC U3007 Buick?

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 U3007 Buick 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.

Need more information about the U3007 Buick code?

Need more information on how to fix the U3007 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U3007 Buick code diagnosed by a professional: Find a repair shop in your area

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 U3007 Buick Code

1. What are the common symptoms of OBDII code U3007 in a Buick related to Control Module Supply Circuit 2?

The common symptoms include issues with starting the vehicle, stalling, rough idling, and potential illumination of the check engine light.

2. What are some possible causes of OBDII code U3007 in a Buick?

Possible causes of this code can include a faulty control module, damaged wiring or connectors in the circuit, or a malfunctioning power supply to the control module.

3. How can I diagnose the Control Module Supply Circuit 2 issue in my Buick?

Diagnosis typically involves using a scan tool to retrieve the specific code, checking the wiring and connectors for any visible damage, and testing the control module and power supply for proper functionality.

4. Can I drive my Buick with the U3007 code present?

It is not recommended to drive the vehicle with this code present, as it can lead to performance issues and potential further damage to the control module or other components.

5. How can I repair the U3007 code related to Control Module Supply Circuit 2 in my Buick?

Repair options may include replacing the control module, repairing or replacing damaged wiring or connectors, and ensuring a stable power supply to the control module.

6. Will resetting the trouble codes make the U3007 code disappear permanently?

Simply resetting the trouble codes may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear once the problem is detected again.

7. Is it possible to fix the U3007 code in a Buick by simply clearing the code with a scan tool?

Clearing the code without addressing the root cause of the issue will not fix the problem. It is important to diagnose and repair the underlying cause to resolve the U3007 code.

8. Can a DIY enthusiast repair the U3007 code related to Control Module Supply Circuit 2 in a Buick?

While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing complex electrical issues like this code may require professional expertise and specialized tools.

9. How much does it typically cost to repair the U3007 code in a Buick?

The cost of repairing the U3007 code can vary depending on the specific cause of the issue, the parts needed for repair, and whether the repair is done by a professional mechanic or as a DIY project.

10. Are there any recalls or technical service bulletins related to the U3007 code in Buick vehicles?

It is recommended to check with Buick dealerships or websites for any recalls or technical service bulletins related to the U3007 code to see if there are known issues or solutions provided by the manufacturer.