AutoCodes – GMC – B1441 GMC

B1441 GMC Code - Control Module Ignition OFF, Run, and Start Circuit

Quick Answer

The vehicle Power Mode Master (PMM) is the Body Control Module (BCM). Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition Switch 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: B1441 GMC indicates Control Module Ignition OFF, Run, and Start Circuit.
Common causes: Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition Switch 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 2,349

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 Apr 17, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1441 GMC Description

The vehicle Power Mode Master (PMM) is the Body Control Module (BCM). The ignition switch is a low-current switch with multiple discrete circuits to the BCM. The BCM logic uses the ignition switch positions to identify the operator's desired power mode and activate specific discrete signals, and serial data messages for the operation of different subsystems as necessary. Other modules which have switched voltage inputs may operate in a default mode if the Power Mode Master serial data message does not match what the individual module can detect from its own connections.
The Power Mode Master will activate relays and other direct outputs of the Power Mode Master as needed according to the calculated power mode. Some relays controlled by the BCM are switched ignition voltage outputs that are pass-through circuits within the BCM directly from the ignition switch. If these circuits are short to ground, the B+ circuit fuse to the ignition switch will open.

OBDII Code B1441 GMC - Control Module Ignition OFF, Run, and Start Circuit - AutoCodes.com — B1441 GMC Code - Control Module Ignition OFF, Run, and Start Circuit

What does this mean?

What are the Possible Causes of the DTC B1441 GMC?

Faulty Ignition Switch
Ignition Switch harness is open or shorted
Ignition Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1441 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 does this mean?

Code Tech Notes

B1441:01 Control Module Ignition OFF, Run, and Start Circuit Short to Battery
B1441:04 Control Module Ignition OFF, Run, and Start Circuit Short to Ground or Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1441 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.

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Need Help with the Code?

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Information for Specific GMC Models

B1441 2014 GMC Sierra — Control Module Ignition OFF, Run, and Start Circuit
B1441 2015 GMC Sierra — Control Module Ignition OFF, Run, and Start Circuit
B1441 2016 GMC Sierra — Control Module Ignition OFF, Run, and Start Circuit
B1441 2017 GMC Sierra — Control Module Ignition OFF, Run, and Start Circuit
B1441 2018 GMC Sierra — Control Module Ignition OFF, Run, and Start 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 B1441 GMC Code

1. What are the common symptoms of OBDII code B1441 GMC?

The common symptoms of OBDII code B1441 GMC include issues with the ignition system, such as difficulty starting the vehicle, stalling, or the engine not turning over.

2. What are the possible causes of OBDII code B1441 GMC?

Possible causes of OBDII code B1441 GMC include a faulty ignition switch, damaged wiring or connectors in the ignition circuit, or a malfunctioning control module.

3. How can I diagnose OBDII code B1441 GMC?

Diagnosing OBDII code B1441 GMC involves using a diagnostic scanner to retrieve the code and then conducting a thorough inspection of the ignition system, wiring, and control module to identify the root cause of the issue.

4. Can I still drive my vehicle with OBDII code B1441 GMC?

It is not recommended to drive your vehicle with OBDII code B1441 GMC, as it can lead to potential safety hazards and further damage to the ignition system. It is best to address the issue promptly.

5. How can I repair OBDII code B1441 GMC?

Repairing OBDII code B1441 GMC typically involves replacing the faulty ignition switch, repairing or replacing damaged wiring, or replacing the malfunctioning control module, depending on the root cause of the issue.

6. Are there any DIY tips for fixing OBDII code B1441 GMC?

While some basic troubleshooting steps can be taken, such as checking for loose connections or blown fuses, it is recommended to consult with a professional mechanic for a proper diagnosis and repair of OBDII code B1441 GMC.

7. Is OBDII code B1441 GMC a serious issue?

OBDII code B1441 GMC can be a serious issue as it affects the ignition system of the vehicle, which is essential for proper engine operation. Ignoring this code can lead to more severe problems over time.

8. How much does it cost to fix OBDII code B1441 GMC?

The cost of fixing OBDII code B1441 GMC can vary depending on the root cause of the issue, the extent of the repairs needed, and the labor rates of the mechanic. It is advisable to obtain quotes from different repair shops.

9. Can a faulty battery cause OBDII code B1441 GMC to appear?

While a faulty battery may not directly cause OBDII code B1441 GMC, it can contribute to issues with the ignition system, which could trigger this code. It's important to ensure the battery is in good condition.

10. How long does it take to repair OBDII code B1441 GMC?

The repair time for OBDII code B1441 GMC can vary depending on the specific repairs needed and the availability of parts. In general, it may take a few hours to a day to diagnose and fix the issue.