AutoCodes – GMC – B1425 2014 GMC Sierra

B1425 2014 GMC Sierra Code - Control Module Power Circuit

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 Low battery voltage, 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: B1425 2014 GMC Sierra indicates Control Module Power Circuit.
Common causes: Common causes include Low battery voltage, 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 150

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 11, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1425 2014 GMC Sierra Description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Damage to components, and incorrect data can occur when the voltage is out of range. The vehicle has multiple Control Modules that will set this Diagnostic Trouble Code (DTC).

OBDII Code B1425 2014 GMC Sierra - Control Module Power Circuit - AutoCodes.com — B1425 2014 GMC Sierra Code - Control Module Power Circuit

What does this mean?

What are the Possible Causes of the DTC B1425 2014 GMC Sierra?

Low battery voltage
Faulty Control Module
Control Module harness is open or shorted
Control Module circuit poor electrical connection

How to Fix the DTC B1425 2014 GMC Sierra?

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 B1425 2014 GMC Sierra 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 B1425 2014 GMC Sierra code?

Need more information on how to fix the B1425 2014 GMC Sierra 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 B1425 2014 GMC Sierra Code

1. What does the OBDII code B1425 mean on a 2014 GMC Sierra?

The code B1425 refers to an issue with the Control Module Power Circuit, indicating a potential problem with the power supply to a control module.

2. What are the common symptoms of the B1425 code on a 2014 GMC Sierra?

Symptoms may include malfunctioning electrical components, warning lights on the dashboard, or intermittent power issues with specific modules.

3. What causes the B1425 code to appear in a 2014 GMC Sierra?

Common causes include a blown fuse, damaged wiring, faulty connectors, or a malfunctioning control module.

4. How do I diagnose the B1425 code on my 2014 GMC Sierra?

Start by inspecting fuses, wiring, and connectors for damage or corrosion. Use a multimeter to verify proper voltage supply to the affected control module.

5. Can a weak battery cause the B1425 code on a 2014 GMC Sierra?

Yes, a weak or failing battery can lead to insufficient voltage supply, triggering the B1425 code.

6. Is the B1425 code serious for a 2014 GMC Sierra?

While it may not immediately impact drivability, unresolved issues could lead to further electrical problems or failure of critical systems.

7. What repairs are commonly needed for the B1425 code on a 2014 GMC Sierra?

Repairs may include replacing blown fuses, repairing or replacing damaged wiring, cleaning or securing connectors, or replacing the faulty control module.

8. Can I clear the B1425 code without fixing the issue on my 2014 GMC Sierra?

Clearing the code without addressing the root cause will likely result in the code returning and may lead to further complications.

9. How much does it cost to fix the B1425 code on a 2014 GMC Sierra?

The cost varies depending on the issue but typically ranges from $50 for a simple fuse replacement to several hundred dollars if a control module needs replacement.

10. Can I drive my 2014 GMC Sierra with the B1425 code active?

While the truck may still be drivable, it's recommended to address the issue promptly to avoid potential electrical failures.