Restore Full Electrical Function to Your GM Truck or SUV
Are you battling frustrating electrical gremlins in your 2003-2007 GMC Sierra 2500, Chevrolet Silverado, or another compatible GM vehicle? Issues like flickering lights, unresponsive power windows, a malfunctioning HVAC system, or a persistent airbag light are often traced back to a single component: a failing Body Control Module (BCM). The BCM acts as the central nervous system for your vehicle’s body accessories. When it fails, it can cause a cascade of seemingly unrelated problems, making diagnosis a nightmare. This genuine OEM-quality GM 15116066 BCM is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a hassle-free, plug-and-play installation.
Diagnosing a Faulty Sierra 2500 Body Control Module
A failing BCM can manifest in numerous ways, often mimicking other component failures. If you’re experiencing several of the following symptoms, your BCM is the likely culprit. This module is engineered to resolve these exact issues, restoring your vehicle’s factory performance and reliability.
- ✔ Unresponsive or erratic power windows, door locks, and interior or exterior lights.
- ✔ HVAC system failures, such as the blower motor not working or being stuck on one speed.
- ✔ An illuminated airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- ✔ Security system malfunctions, including random alarm activation or a no-start condition where the engine cranks but won’t fire.
- ✔ Intermittent operation of windshield wipers or radio controls.
- ✔ A variety of communication-related DTCs stored in the vehicle’s computer.
This module is a direct replacement for a wide range of part numbers, ensuring perfect compatibility. Interchangeable part numbers include: 10383536, 15116066, 15136225, 15136877, 15137393, 15137394, 15137395, 15137396, 15198116, 15257043, 15257044, 15257045, 15257046, 10367690, 15064149, and 15194170.
Post-Installation Considerations
Our VIN programming handles the vast majority of the setup, making installation straightforward. However, in some vehicles, specific systems may need to be re-synced with the new BCM. If your airbag light remains on after installation, a technician will need to perform the ‘Setup SDM Primary Key in BCM’ procedure using a professional scan tool. Similarly, a ‘Brake Pedal Position Relearn’ may be required on certain models to ensure correct brake light and traction control operation. These are standard procedures and do not indicate a fault with the module.
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 power windows, locks, lights, wipers, the security system, and the HVAC climate control system.
Is this part difficult to install?
Installation is typically very simple and takes less than 15 minutes. The BCM is usually located under the driver’s side dashboard near the steering column. Simply disconnect the battery, unplug the old module, plug in the new one, and reconnect the battery.
Will I need to go to the dealership after installing this?
No. This module comes pre-programmed to your vehicle’s VIN. This eliminates the need for expensive dealership programming, allowing for a direct installation right out of the box.
What if my airbag light is on after installation?
This is a normal possibility. It means the new BCM needs to be electronically introduced to the airbag system’s computer (SDM). A repair shop with a professional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems and turn off the light.
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 penalty or hassle.