Are you battling a storm of strange electrical problems in your GM truck or SUV? From flickering lights and unresponsive power windows to a dead HVAC system or a persistent airbag light, the culprit is often a failing Body Control Module (BCM). This genuine GM 15116066 BCM, pre-programmed to your vehicle’s specific VIN, is the definitive solution to restore order and full functionality to your vehicle’s essential electronic systems.
Your Pre-Programmed Sierra 3500 Body Control Module
The BCM acts as the central command center for your truck’s body electronics. When it fails, communication between components breaks down, leading to unpredictable and frustrating issues. This isn’t just a replacement part; it’s a restoration of your vehicle’s core operational integrity. Unlike a generic or junkyard module that requires expensive dealership programming, this Sierra 3500 Body Control Module arrives with the latest GM software updates and is coded directly to your VIN. This ensures a seamless, plug-and-play installation that gets you back on the road without extra hassle or cost.
Common Symptoms of a Failing GM BCM
- ✔ Unresponsive or erratic power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that won’t turn on or off.
- ✔ Complete loss of HVAC controls or a blower motor that works intermittently.
- ✔ An illuminated airbag warning light, often with Diagnostic Trouble Code (DTC) B1001.
- ✔ Security system malfunctions, causing no-start or random alarm activation.
- ✔ Inconsistent windshield wiper operation.
- ✔ A cluster of seemingly unrelated electrical DTCs stored in the system.
Key Features & Benefits
- ✔ VIN Programmed: Arrives ready for installation, flashed to your vehicle’s VIN to ensure perfect communication with other modules.
- ✔ Restores Full Functionality: Corrects common electrical failures, from power accessories to climate control, for a like-new driving experience.
- ✔ No Core Charge: A straightforward purchase with no need to return your old, faulty part.
- ✔ OEM-Standard Quality: Built to meet or exceed original equipment specifications for lasting reliability and performance, backed by a one-year warranty.
- ✔ Wide Compatibility: A direct replacement for a broad range of 2002-2007 GM trucks and SUVs, including Silverado, Tahoe, Suburban, Yukon, Escalade, and Hummer H2 models.
Installation & Post-Install Notes
Installation is typically a simple process. The BCM is usually located under the driver’s side dashboard, near the steering column. Disconnecting the battery before swapping the modules is recommended. While the unit is plug-and-play for most functions, some vehicles may require a ‘Setup SDM Primary Key in BCM’ procedure using a professional scan tool if the airbag light remains on. This syncs the new BCM with the airbag system. Similarly, a Brake Pedal Position relearn may be needed on certain models. Always consult a service manual for vehicle-specific instructions.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM is a computer that controls and monitors many of your vehicle’s non-engine related functions, such as power windows, door locks, interior and exterior lighting, the security system, wipers, and the HVAC system.
Is this part really plug-and-play?
Yes, because we program it to your vehicle’s VIN before shipping, it will work right out of the box. In some cases, a post-installation procedure like an airbag system sync may be needed if a warning light appears, which requires a professional scan tool.
Will this BCM fix my airbag light with a B1001 code?
A faulty BCM is a very common cause of the B1001 ‘Option Configuration Error’ code. Replacing it with this programmed module often resolves the issue, though you may need to perform the ‘Setup SDM Primary Key in BCM’ procedure to fully sync the systems and turn off the light.
Where is the BCM located on my 2006 GMC Sierra?
On most GM trucks and SUVs from this era, including the GMC Sierra, the BCM is located under the driver’s side of the dashboard, typically to the left of the steering column. On Savana and Express vans, it is found in the center dash area.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep or dispose of your old module without any additional fees.