Is Your GM Truck Plagued by Baffling Electrical Issues?
If you’re dealing with flickering lights, a malfunctioning climate control system, or power windows and locks with a mind of their own, you’re likely facing a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of frustrating and seemingly unrelated problems. This VIN-programmed BCM is the definitive solution, designed to restore full functionality to your 2003-2007 GMC Sierra 3500, Chevrolet Silverado, Tahoe, Suburban, and other compatible GM vehicles.
Common Symptoms of a Failing BCM
- ✔ Unresponsive or erratic power windows, door locks, and interior/exterior lights.
- ✔ HVAC and climate control systems not working correctly, or the blower motor functioning intermittently.
- ✔ The security system acting up, leading to a no-start condition or false alarms.
- ✔ An illuminated airbag warning light, often accompanied by diagnostic trouble code (DTC) B1001.
- ✔ A variety of communication or function-specific DTCs stored in the vehicle’s memory.
- ✔ Intermittent electrical functions that seem to have no clear cause.
The Plug-and-Play Solution: A Pre-Programmed 2003-2007 Sierra 3500 BCM
Don’t waste time and money at the dealership. This Body Control Module comes expertly pre-programmed to your vehicle’s specific VIN. This crucial step ensures that the module communicates flawlessly with your truck’s other electronic systems right out of the box. It’s loaded with the latest GM software updates to guarantee optimal performance and reliability. This is a direct-fit replacement for part number 15137395 and is interchangeable with a wide range of other GM part numbers, including 15116066, 15137394, and 15198116.
Installation & Post-Install Notes
Installation is a straightforward process for any DIYer. The BCM is typically located under the driver’s side dashboard, near the steering column. Simply disconnect the battery, remove the old module, plug in the new one, and reconnect the battery. In most cases, the job is done. However, please note:
- Airbag System Sync: If the airbag light appears after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position: Some models may require a brake pedal position sensor relearn to ensure proper brake light and traction control operation.
Frequently Asked Questions
What does a Body Control Module do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related functions, such as the power windows, locks, lights, wipers, security system, and climate controls.
Is this BCM really plug-and-play?
Yes! Because we program it to your vehicle’s VIN before shipping, it eliminates the need for expensive dealership programming. It arrives ready to be installed and function correctly.
Why is VIN programming so important?
VIN programming loads your vehicle’s specific configuration and options into the BCM. Without it, the module won’t know how to operate your truck’s features, leading to errors or non-functioning components.
What if my airbag light stays on after installation?
This is a common security measure. The new BCM needs to be electronically ‘introduced’ to the airbag’s Sensing and Diagnostic Module (SDM). A repair shop with a professional-grade scan tool can perform the ‘Setup SDM Primary Key’ procedure to resolve this.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep your old module without any hassle.
Where is the BCM located on my 2006 Sierra?
On most 2003-2007 GM trucks like the Sierra and Silverado, the BCM is located under the driver-side dash, just to the left of the steering column.