Are you battling frustrating electrical gremlins in your GM truck or SUV? Flickering lights, unresponsive power windows, or a security system that has a mind of its own are all classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it starts to fail, it can cause a wide range of bizarre and unpredictable problems. This replacement BCM is the definitive solution to restore your vehicle’s functionality and peace of mind.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle and high cost out of the repair by pre-programming the module to your vehicle’s specific VIN before it ships. This means you get a BCM loaded with the latest GM software updates, ensuring optimal performance and compatibility. Simply provide your VIN after purchase, and we’ll handle the complex programming, saving you a trip to the dealership and their expensive labor fees.
Common Symptoms of a Failing 2002 Sierra 1500 BCM
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ Interior dome lights, headlights, or taillights malfunctioning.
- ✔ The security system causing a no-start condition or the alarm going off randomly.
- ✔ The “Service Vehicle Soon” light or other warning indicators illuminated on the dashboard.
- ✔ Inconsistent or non-functional radio and climate controls.
- ✔ Communication errors between various electronic modules.
From the Diagnostic Bay
We had a 2002 Silverado in the shop that was driving the owner crazy. The radio would switch stations on its own, the dome light would stay on for hours after the door was closed, and sometimes the truck just wouldn’t start. The owner had already replaced the battery and checked all the fuses. After connecting our diagnostic scanner, we saw multiple communication fault codes all pointing back to one component. A faulty BCM was scrambling signals across the entire vehicle. We installed a VIN-programmed module, and instantly, all the strange electrical issues vanished. The truck was back to being reliable, and the owner was thrilled to have a simple, effective fix.
Plug-and-Play with Minor Post-Installation Steps
Our goal is to make your repair as simple as possible. Because this 2002 Sierra 1500 BCM is programmed to your VIN, it’s designed for a direct installation. However, depending on your vehicle’s specific configuration, a couple of simple relearn procedures may be necessary after the part is installed. These are standard procedures for this type of repair.
Post-Installation Requirements:
- ✔ Airbag System Sync: If your airbag warning light is on after installation, a technician will need to perform the “Setup SDM Primary Key in BCM” procedure with a capable scan tool. This syncs the new BCM with the airbag system.
- ✔ Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure brake lights and traction control function correctly.
This module is a direct replacement for part numbers: 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU, and fits a wide range of 2002-2005 GM vehicles including the Sierra, Silverado, Yukon, Tahoe, Suburban, Avalanche, Astro, Safari, Blazer, and S10/Sonoma. Order today and get your truck’s electronics working like new again!
Frequently Asked Questions
What does a BCM do on a 2002 GMC Sierra?
The Body Control Module (BCM) acts as the main computer for your truck’s electronic accessories. It controls functions like power windows, power locks, interior and exterior lighting, the security system, and dashboard warning lights.
Is this BCM truly plug-and-play?
It is ‘plug-and-program.’ We program it to your VIN, so it communicates with your truck’s systems upon installation. However, as noted, some vehicles may require minor, common relearn procedures for the airbag or brake systems, which require a professional scan tool.
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 the module until we receive and program it with your VIN.
What if my original part number isn’t DKAK?
No problem. This module is a direct replacement for several part numbers, including 15063578, 15081796, 15095334, 19208537, and DPNU. As long as your original part number is on this list, this module will fit and function correctly.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module.