AutoCodes – GMC – U3007 GMC

U3007 GMC 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 GMC 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 2,540

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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

What does this mean?

What are the Possible Causes of the DTC U3007 GMC?

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

Need Help with the Code?

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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 U3007 GMC Code

1. What are the common symptoms of OBDII code U3007 GMC?

The common symptoms of OBDII code U3007 GMC, Control Module Supply Circuit 2, may include issues with starting the vehicle, poor engine performance, and illumination of the Check Engine Light.

2. What can cause the U3007 GMC trouble code to appear?

The U3007 GMC trouble code can be triggered by issues such as a faulty control module, damaged wiring or connectors in the supply circuit, or a weak battery.

3. How serious is the U3007 GMC trouble code?

The U3007 GMC trouble code should be addressed promptly as it can lead to potential issues with the vehicle's performance and drivability. Ignoring this code may result in further damage to the vehicle.

4. Can I drive my vehicle with the U3007 GMC trouble code?

It is not recommended to drive your vehicle with the U3007 GMC trouble code present, as it can affect the overall performance and safety of the vehicle. It's best to have the issue diagnosed and repaired before driving again.

5. How can I diagnose and repair the U3007 GMC trouble code?

Diagnosing and repairing the U3007 GMC trouble code typically involves using a diagnostic scanner to identify the specific cause of the issue, checking the control module and associated wiring for faults, and repairing or replacing any damaged components.

6. Is it possible to reset the U3007 GMC trouble code on my own?

While you can clear the trouble code using a diagnostic scanner, it's important to address the underlying issue causing the code to prevent it from reoccurring. Simply clearing the code without fixing the problem will not resolve the issue.

7. Are there any DIY tips for fixing the U3007 GMC trouble code?

If you have experience with automotive repairs and diagnostics, you may attempt to check the control module, wiring connections, and battery voltage yourself. However, if you're unsure, it's best to seek professional help.

8. How much does it cost to repair the U3007 GMC trouble code?

The cost of repairing the U3007 GMC trouble code can vary depending on the specific cause of the issue, the labor rates in your area, and the cost of replacement parts. It's recommended to obtain quotes from local auto repair shops for an accurate estimate.

9. Can a weak battery cause the U3007 GMC trouble code?

Yes, a weak or failing battery can potentially trigger the U3007 GMC trouble code, as it may not provide sufficient voltage to the control module supply circuit. It's important to have the battery tested and replaced if necessary.

10. Will the U3007 GMC trouble code affect my vehicle's emissions?

If left unresolved, the U3007 GMC trouble code can potentially affect your vehicle's emissions by causing improper engine performance and combustion. It's important to address this code to ensure your vehicle meets emissions standards.