Is Your GM Truck Plagued by Bizarre Electrical Problems?
If your 2003-2007 GMC Sierra 3500 or other compatible GM vehicle is experiencing frustrating issues like flickering lights, unresponsive power windows, or a malfunctioning HVAC system, a failing Body Control Module (BCM) is the most likely culprit. The BCM acts as the central command center for your truck’s body electronics, and when it malfunctions, it can create a cascade of seemingly unrelated problems. This OEM-quality replacement BCM, part number 15194170, is the definitive solution to restore your vehicle’s full electrical functionality.
Solving Issues with a Programmed 2003-2007 Sierra 3500 Body Control Module
A faulty BCM can be a diagnostic nightmare. It can cause intermittent issues that are hard to trace, from security system faults that prevent the engine from starting to an airbag light that won’t turn off. Instead of spending hundreds at a dealership for diagnostics and programming, this module arrives at your door pre-programmed to your vehicle’s specific VIN. This ensures seamless integration and communication with your truck’s other electronic systems right out of the box. Simply install it, and you’re ready to go.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and interior/exterior lights.
- ✔ HVAC system failures, such as the blower motor not working or temperature controls being unresponsive.
- ✔ An illuminated airbag warning light, often accompanied by diagnostic trouble codes (DTCs) like B1001.
- ✔ Vehicle security system acting up, leading to a no-start condition or false alarms.
- ✔ Intermittent operation of windshield wipers or radio controls.
- ✔ Communication loss codes with other modules on the data network.
This module is a direct replacement for a wide range of GM trucks and SUVs, including the Chevrolet Silverado, Tahoe, Suburban, Avalanche, and Express van, as well as the GMC Yukon, Savana van, Cadillac Escalade, and Hummer H2. It is interchangeable with numerous part numbers, including 15116066, 15136225, 15198116, and 15257043, ensuring a perfect fit for your repair.
Installation and Post-Install Notes
Installation is straightforward. The BCM is typically located under the driver’s side dashboard, near the steering column. After disconnecting the battery, simply unplug the electrical connectors from the old module, remove it, and install the new one. While our VIN programming handles the majority of the setup, some vehicles may require a ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool if the airbag light remains on. This syncs the new BCM with the airbag system. There is no core charge, so you can keep your old part without any hassle.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that controls and monitors various electronic accessories, such as power windows, locks, lights, wipers, and the security system. It’s the brain for your vehicle’s body electronics.
Is this BCM truly plug-and-play?
Yes, this module is pre-programmed to your vehicle’s VIN before shipping. This means it’s ready for installation without requiring a trip to the dealership for expensive programming, making it a true plug-and-play solution.
Where is the BCM located on my 2006 GMC Sierra?
On most 2003-2007 GM trucks like the Sierra and Silverado, the BCM is located under the driver’s side of the dashboard, typically to the left of the steering column.
What if my airbag light is on after installation?
If the airbag light is on after installing the new BCM, the vehicle may require an ‘SDM Primary Key’ relearn procedure. This requires a professional-grade scan tool to sync the new BCM with the existing airbag system (SDM).
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep or dispose of your old module without needing to send it back to us.