AutoCodes – GMC – U3014 GMC

U3014 GMC Code - Control Module Input Power 4

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: U3014 GMC indicates Control Module Input Power 4.
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 552

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 U3014 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 U3014 GMC - Control Module Input Power 4 - AutoCodes.com — U3014 GMC Code - Control Module Input Power 4

What does this mean?

What are the Possible Causes of the DTC U3014 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 U3014 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 U3014 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.

Need more information about the U3014 GMC code?

Need more information on how to fix the U3014 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U3014 GMC 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 U3014 GMC Code

1. What are common symptoms of OBDII code U3014 GMC related to the Control Module Input Power 4?

The common symptoms include issues with starting the vehicle, reduced engine performance, and illumination of the check engine light.

2. What are some possible causes of OBDII code U3014 GMC for Control Module Input Power 4?

Possible causes may include a faulty control module, damaged wiring or connectors, a drained or weak battery, or issues with the alternator.

3. How can I diagnose the OBDII code U3014 GMC for Control Module Input Power 4?

Diagnosis typically involves using a scan tool to retrieve the code, checking the battery voltage, inspecting the wiring and connectors, and testing the control module for proper functioning.

4. Can a DIY enthusiast repair OBDII code U3014 GMC for Control Module Input Power 4?

While some basic checks like inspecting connectors and wiring can be done by a DIY enthusiast, diagnosing and repairing issues related to the control module may require professional expertise.

5. Is it safe to continue driving with OBDII code U3014 GMC for Control Module Input Power 4?

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

6. How much does it typically cost to repair OBDII code U3014 GMC for Control Module Input Power 4?

The cost of repairs can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

7. What are some preventative maintenance tips to avoid OBDII code U3014 GMC for Control Module Input Power 4?

Regularly checking the battery health, ensuring proper electrical connections, and addressing any warning signs promptly can help prevent issues leading to this code.

8. Can weather conditions or extreme temperatures trigger OBDII code U3014 GMC for Control Module Input Power 4?

Extreme temperatures or weather conditions can potentially affect the performance of electrical components and lead to issues triggering this code.

9. Will resetting the OBDII code U3014 GMC for Control Module Input Power 4 make it go away permanently?

Resetting the code without addressing the underlying issue will only temporarily clear the check engine light, but the problem may resurface if not properly fixed.

10. Are there any recalls or technical service bulletins related to OBDII code U3014 GMC for Control Module Input Power 4?

It's advisable to check with a GMC dealership or reputable automotive sources for any recalls or technical service bulletins related to this specific OBDII code to stay informed about potential known issues and solutions.