AutoCodes – GMC – B1424 GMC

B1424 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: B1424 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.

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Code Popularity 1,615

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 B1424 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 B1424 GMC - Control Module Power Circuit - AutoCodes.com — B1424 GMC Code - Control Module Power Circuit

What does this mean?

What are the Possible Causes of the DTC B1424 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 B1424 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 B1424 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 B1424 GMC code?

Need more information on how to fix the B1424 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1424 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

B1424 2014 GMC Sierra — Control Module Power Circuit
B1424 2015 GMC Sierra — Control Module Power Circuit
B1424 2016 GMC Sierra — Control Module Power Circuit
B1424 2017 GMC Sierra — Control Module Power Circuit
B1424 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 B1424 GMC Code

1. What are the common symptoms of OBDII code B1424 GMC related to the Control Module Power Circuit?

- Common symptoms include issues with starting the vehicle, loss of power to certain electronic components, and dashboard warning lights.

2. What are the possible causes of OBDII code B1424 GMC?

- The code can be triggered by a faulty control module, damaged wiring or connectors, a blown fuse, or a drained battery.

3. How can I diagnose the cause of OBDII code B1424 GMC?

- Diagnosing the code involves checking the control module, inspecting the wiring and connectors for damage, testing the power supply, and verifying the battery's condition.

4. Can I drive my vehicle with OBDII code B1424 GMC active?

- It is not recommended to drive the vehicle with this code active as it can lead to potential safety hazards or further damage to the electrical system.

5. How can I repair OBDII code B1424 GMC related to the Control Module Power Circuit?

- Repair options include replacing the faulty control module, repairing damaged wiring or connectors, replacing blown fuses, or recharging or replacing the battery.

6. Can a DIY enthusiast fix OBDII code B1424 GMC at home?

- Depending on the underlying cause, some DIY enthusiasts with knowledge of automotive electrical systems may be able to address this code at home. However, professional diagnosis and repair are recommended for complex issues.

7. What tools are needed to diagnose OBDII code B1424 GMC?

- Tools such as a scan tool for reading the code, a multimeter for testing electrical components, and a wiring diagram for the specific vehicle model are typically required for diagnosis.

8. How much does it cost to repair OBDII code B1424 GMC at a mechanic or dealership?

- Repair costs can vary depending on the cause of the code, the extent of the damage, and the labor rates of the mechanic or dealership. It's best to obtain a quote for an accurate estimate.

9. Will resetting the OBDII code B1424 GMC make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear. It's important to diagnose and repair the root cause.

10. Is OBDII code B1424 GMC a common issue in GMC vehicles?

- While it may not be as common as some other OBDII codes, issues related to the Control Module Power Circuit can occur in GMC vehicles, especially in older models or those with high mileage.