AutoCodes – GMC – B1425 GMC

B1425 GMC 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 GMC 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 390

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

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

What does this mean?

What are the Possible Causes of the DTC B1425 GMC?

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 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 B1425 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 B1425 GMC code?

Need more information on how to fix the B1425 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1425 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

B1425 2014 GMC Sierra — Control Module Power Circuit
B1425 2015 GMC Sierra — Control Module Power Circuit
B1425 2016 GMC Sierra — Control Module Power Circuit
B1425 2017 GMC Sierra — Control Module Power Circuit
B1425 2018 GMC Sierra — Control Module Power Circuit

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 GMC Code

1. What are common symptoms of OBDII code B1425 GMC related to the Control Module Power Circuit?

The common symptoms include issues with power windows, power door locks, and other electrical components not functioning properly.

2. What are the possible causes of OBDII code B1425 GMC?

Possible causes include a faulty control module, damaged wiring or connectors, or a blown fuse related to the power circuit.

3. How can I diagnose the cause of OBDII code B1425 GMC?

Diagnosing the issue involves checking the control module for power supply, inspecting wiring and connectors for damage, and testing fuses related to the power circuit.

4. Can a DIY enthusiast repair OBDII code B1425 GMC at home?

Repairing this code may be possible for DIY enthusiasts with experience in automotive electrical systems. However, it's recommended to consult a professional for accurate diagnosis and repair.

5. Is it safe to continue driving with OBDII code B1425 GMC active?

It is not recommended to continue driving with this code active, as it can lead to further electrical issues or malfunctions in the vehicle.

6. How much does it typically cost to repair OBDII code B1425 GMC?

The cost of repairing this code can vary depending on the underlying cause. It may range from a simple fuse replacement to a more complex control module repair or replacement, potentially costing a few hundred dollars.

7. Can resetting the OBDII code B1425 GMC resolve the issue temporarily?

Resetting the code may temporarily clear the error, but if the underlying issue is not addressed, the code is likely to reappear once the problem resurfaces.

8. Are there any preventive measures to avoid OBDII code B1425 GMC in the future?

Regular inspection of the vehicle's electrical system, timely maintenance, and prompt resolution of any electrical issues can help prevent the occurrence of this code in the future.

9. Are there any specific tools required to diagnose OBDII code B1425 GMC?

Diagnosing this code may require tools such as a multimeter for testing electrical connections, a scan tool for accessing the vehicle's onboard diagnostics, and a wiring diagram for reference.

10. How long does it typically take to repair OBDII code B1425 GMC?

The repair time can vary based on the specific cause of the code. Simple fixes like replacing a fuse may take a short time, while more complex issues involving control module repair or replacement may require more extensive work and time.