Is your 2002 GM truck or SUV experiencing bizarre electrical problems?
If you’re dealing with flickering lights, malfunctioning power windows and locks, or strange warning messages on your dash, a failing Body Control Module (BCM) is the most likely cause. The BCM is the central computer for your vehicle’s body electronics, and when it fails, it can create a host of frustrating and difficult-to-diagnose issues. This replacement module is the definitive solution to restore full functionality and reliability to your vehicle.
This is a direct-fit replacement for a wide range of 2002-2005 GM vehicles, including the Silverado, Sierra, Tahoe, Suburban, and Astro Van. To ensure a seamless installation, we program the module to your vehicle’s specific VIN before shipping. This essential step loads the latest GM software and configures the BCM for the exact options your truck came with from the factory, saving you a costly trip to the dealership. Simply provide your VIN after purchase, and we’ll handle the rest.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-working power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that won’t turn on or off.
- ✔ The security system engaging randomly or preventing the engine from starting (Passlock issues).
- ✔ Instrument cluster gauges behaving erratically or not working at all.
- ✔ False warning messages on the driver information center (DIC).
- ✔ Intermittent issues with the radio or climate control systems.
- ✔ Battery drain when the vehicle is turned off.
Installation and Programming for Your Vehicle
This isn’t just a part; it’s a complete solution. By programming the module to your VIN, we ensure it communicates correctly with your vehicle’s other computers, like the Engine Control Module (ECM) and Powertrain Control Module (PCM). After installation, some vehicles may require a simple relearn procedure. If your airbag light is on, a technician with a capable scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure. Similarly, a brake pedal position sensor relearn might be needed to ensure proper brake light operation. Best of all, there is no core charge, so you can keep your original module.
This module is a direct replacement for part numbers: 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls electronic accessories not related to the engine. This includes power windows, locks, lights, security system, wipers, and instrument cluster functions.
Is this BCM plug-and-play?
Because we program the module to your specific VIN before shipping, it is as close to plug-and-play as possible. In some cases, minor post-installation procedures like an airbag system sync or brake pedal position relearn may be required, which can be performed by a qualified technician.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information.
What if my airbag light is on after installation?
If the airbag warning light is on, it means the new BCM needs to be synced with the vehicle’s Sensing and Diagnostic Module (SDM). A technician with a professional diagnostic tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Do I need to return my old BCM?
No. This part has no core charge, so you are not required to send your original module back to us.