Restore Full Electrical Function to Your GM Truck or Van
Are you battling bizarre electrical issues in your 2002 Chevrolet Silverado, GMC Sierra, or another compatible GM vehicle? Problems like flickering interior lights, malfunctioning power windows and locks, a security system that acts up, or warning lights that won’t turn off are often signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a wide range of frustrating problems. This replacement BCM is the definitive solution to get your truck’s systems working correctly again.
From the Diagnostic Bay
We had a 2002 Sierra 2500 in the shop that was driving the owner crazy. The dome light would stay on for hours, draining the battery, and the power door locks worked only when they wanted to. He had already replaced the battery and checked all the fuses. After a quick scan, we pinpointed the BCM as the culprit. Instead of a costly trip to the dealer for a new module and programming, we installed one of these VIN-programmed units. The installation was straightforward, and after a quick brake pedal position relearn, all the electrical gremlins were gone. The customer was thrilled to have his reliable truck back without the dealership hassle and expense.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, mirrors, and door locks.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ The security or anti-theft system light flashing, preventing the vehicle from starting.
- ✔ Horn sounding unexpectedly or not working when pressed.
- ✔ Inaccurate gauge readings on the instrument cluster.
- ✔ Communication errors with other vehicle modules, triggering various warning lights.
Solving Issues with Your 2002 Silverado Body Control Module
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and complexity out of the repair. Simply provide us with your vehicle’s VIN during checkout, and our technicians will program the module with the latest GM-approved software specific to your truck’s configuration. This ensures seamless integration and proper function of all related systems right out of the box. This module is a direct replacement for multiple part numbers, including 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU.
Important Post-Installation Steps
While this module is programmed for your VIN, some vehicle systems may require a ‘handshake’ with the new BCM. Depending on your specific model and options, you may need a qualified technician with a professional scan tool to perform one or both of the following procedures:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary to sync the airbag system with the new BCM.
- Brake Pedal Position Relearn: To ensure correct brake light operation and traction control function, a brake pedal position sensor recalibration may be required.
Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
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 like power windows, locks, lights, security systems, and wipers. It acts as a central hub for these body-related functions.
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings for your vehicle’s specific options and features. This ensures the module works correctly upon installation and minimizes post-install complications.
Is this a simple plug-and-play installation?
For many functions, yes. Because we pre-program the module, it’s much simpler than installing a blank unit from a dealer. However, as noted, some vehicles may require additional relearn procedures for the airbag or brake systems, which require a professional scan tool.
What happens if I don’t do the required relearn procedures?
If the airbag light is on, the airbag system may not function correctly in an emergency. If the brake pedal position isn’t learned, your brake lights or traction control system may not operate as intended. It is highly recommended to have these procedures performed if needed.
Do I need to send my old BCM back?
No. This part is sold without a core charge, so you can keep your original module.
How do I find my original BCM part number?
Your original BCM is typically located under the steering column or in the center dash area. The part number is printed on a sticker on the module’s housing. Matching it to our list (15063578, 15081796, 15095334, etc.) helps confirm compatibility.