Are you experiencing a cascade of bizarre electrical issues in your GM truck or SUV? From flickering lights and malfunctioning power windows to a dead HVAC system or a persistent airbag light, these are classic signs of a failing Body Control Module (BCM). The BCM is the electronic brain for your vehicle’s body accessories, and when it malfunctions, it can make your truck feel possessed. This VIN-programmed BCM, part number 15194170, is the definitive solution to restore order and full functionality to your vehicle without the exorbitant cost and hassle of a dealership visit.
Is Your GM Vehicle Showing These Symptoms?
A faulty BCM can manifest in numerous ways. If you’re noticing any of the following, it’s highly likely your BCM is the culprit:
- ✔ Unresponsive or erratic power windows, door locks, or interior/exterior lights.
- ✔ The HVAC system or climate controls do not work, or the blower motor operates intermittently.
- ✔ An illuminated airbag warning light, often accompanied by diagnostic trouble code (DTC) B1001.
- ✔ Security system malfunctions, leading to a no-start condition where the engine won’t crank.
- ✔ Strange parasitic battery drain that leaves you with a dead battery overnight.
- ✔ Multiple communication DTCs stored in the vehicle’s computer system.
The Plug-and-Play Solution: A Pre-Programmed 2003-2007 Silverado 3500 BCM
The biggest hurdle in replacing a BCM has always been the need for expensive programming at a dealership. We eliminate that step entirely. We pre-program this module to your vehicle’s specific VIN before shipping it to you. This ensures that it integrates seamlessly with your truck’s existing electronic systems, including the options and features unique to your build. It arrives ready for a straightforward, plug-and-play installation.
Installation is simple for any DIY mechanic. The BCM is typically located under the driver’s side dashboard, near the steering column. Simply disconnect the battery, remove a few trim panels, unbolt the old module, disconnect the electrical connectors, and install the new one in its place. Once reconnected, your vehicle’s body electronics will be back online and fully functional.
Please Note: In some cases, particularly if the airbag light was on, a post-installation procedure called “Setup SDM Primary Key in BCM” may be required using a professional scan tool to sync the new BCM with the airbag system. Additionally, a Brake Pedal Position relearn might be necessary on certain models.
Frequently Asked Questions
What does this Body Control Module do?
The BCM acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, door locks, the security system, interior and exterior lighting, wipers, and the HVAC system.
Will I need to take my truck to the dealer for programming?
No. This module comes pre-programmed to your vehicle’s VIN. This makes it a true plug-and-play installation, saving you time and money by avoiding a trip to the dealership.
What are the most common signs of a bad BCM in my Silverado or Sierra?
The most common symptoms are erratic or non-working power accessories (windows, locks), HVAC control failure, an airbag light with code B1001, and security system issues that can prevent the truck from starting.
Where is the BCM located on my 2005 Silverado?
On most 2003-2007 Silverado, Sierra, Tahoe, and Suburban models, the BCM is located under the driver’s side of the dashboard, typically attached to a metal bracket near the steering column.
What if my airbag light stays on after installation?
If the airbag light remains on, it means the new BCM needs to be synchronized with the airbag’s Sensing and Diagnostic Module (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure.
Does this part require a core return?
No, there is no core charge for this part. You can keep your old module, which means no hassle with return shipping.