AutoCodes – Generic – U3006

U3006 Code - Control Module Input Power 1

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: U3006 indicates Control Module Input Power 1.
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 30,953

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 U3006 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 U3006 - Control Module Input Power 1 - AutoCodes.com — U3006 Code - Control Module Input Power 1

What does this mean?

What are the Possible Causes of the DTC U3006?

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

How to Fix the DTC U3006?

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 U3006 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 U3006 code?

Need more information on how to fix the U3006 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U3006 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U3006 Buick — Control Module Input Power 1
U3006 Cadillac — Control Module Input Power 1
U3006 Chevrolet — Control Module Input Power 1
U3006 GMC — Control Module Input Power 1

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 U3006 Code

1. What are the common symptoms of OBDII code U3006 (Control Module Input Power 1)?

The common symptoms include engine stalling, rough idling, poor acceleration, and the illumination of the Check Engine Light.

2. What could be causing the OBDII code U3006 to trigger?

Possible causes of U3006 can include a faulty control module, wiring issues in the input power circuit, blown fuses, or a weak battery.

3. How can I diagnose the OBDII code U3006 at home?

You can start by checking the fuses related to the affected control module, inspecting the wiring for any visible damage, and ensuring the battery is in good condition.

4. Is it safe to continue driving with the U3006 fault code present?

It is not recommended to drive with the U3006 code active, as it can lead to further damage to the vehicle and potentially unsafe driving conditions.

5. How can I reset the U3006 fault code after making repairs?

After addressing the underlying issue, you can reset the fault code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes.

6. Can a DIY enthusiast repair the U3006 code themselves?

Depending on the cause of the code, some DIY enthusiasts may be able to address the issue by checking and repairing wiring or replacing fuses. However, complex control module issues may require professional assistance.

7. How much does it typically cost to repair the U3006 fault code?

The cost of repairing U3006 can vary widely depending on the root cause of the issue. Simple fixes like replacing a fuse may cost less than diagnosing and repairing a faulty control module.

8. Will the U3006 fault code affect my vehicle's performance?

Yes, the U3006 code can negatively impact your vehicle's performance by causing issues such as stalling, rough idling, and reduced power output.

9. Are there any preventive measures to avoid the U3006 fault code?

Regularly checking the condition of your vehicle's wiring, keeping the battery in good health, and addressing any electrical issues promptly can help prevent the U3006 code from occurring.

10. How urgent is it to address the U3006 fault code?

It is recommended to address the U3006 fault code as soon as possible to prevent further damage to the vehicle and ensure safe and optimal driving conditions.