Is Your GM Truck or SUV Plagued by Electrical Gremlins?
If your 2002 Chevrolet Silverado, GMC Sierra, or other compatible GM vehicle is experiencing bizarre electrical issues, a failing Body Control Module (BCM) is the most likely culprit. The BCM is the central command center for your vehicle’s body electronics, managing everything from your power windows and locks to the interior lights and security system. When it starts to fail, it can create a host of frustrating and unpredictable problems that can be difficult to diagnose.
From the Diagnostic Bay
We had a 2002 Sierra 1500 in the shop last month with a classic case of BCM failure. The owner had already replaced the battery twice and the alternator once, convinced it was a power supply issue. The dome lights would stay on, the radio would randomly shut off, and the power locks worked intermittently. A quick scan showed multiple communication errors pointing toward the BCM. After installing a VIN-programmed module like this one, all the phantom electrical issues vanished. It saved the customer from chasing down endless wiring problems and replacing perfectly good parts.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights staying on or not turning on at all.
- ✔ The security system acting up or preventing the vehicle from starting.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Intermittent dashboard warning lights with no apparent cause.
- ✔ Radio or climate control systems malfunctioning.
The Direct-Fit, Programmed Solution for Your Truck
Don’t let a faulty module keep your truck off the road. This is a direct replacement 2002 Silverado Body Control Module, and it solves the problem the right way. We take the guesswork out of the repair by pre-programming the unit to your vehicle’s specific VIN before we ship it. This ensures compatibility with your truck’s options and systems. Simply provide us with your VIN after purchase, and we’ll handle the complex programming, loading the latest GM software updates for optimal performance and reliability.
Installation and Post-Install Notes
Installation is straightforward for a DIY mechanic or any professional technician. On most trucks like the Silverado and Sierra, the BCM is located under the steering column. After installation, some vehicles may require additional relearn procedures. If your airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. Additionally, a ‘Brake Pedal Position Relearn’ may be necessary to ensure proper brake light and traction control function. Best of all, there is no core charge, so you can keep your old part.
Guaranteed Fitment for Part Number 15081796
This module is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. It fits a wide range of 2002-2005 GM trucks and vans. Please verify your part number and check the detailed fitment list below to ensure compatibility with your exact vehicle.
Frequently Asked Questions
Do I need to program this 2002 Silverado Body Control Module?
No. We pre-program the module to your vehicle’s VIN before shipping. This makes installation much simpler than buying a blank module from a dealer.
Where is the BCM located on my 2002 Silverado 1500?
The BCM is typically located under the driver’s side dashboard, near the steering column. On vans like the Astro and Safari, it is often found in the center dash area.
What if my airbag light is on after I install the BCM?
This is a known possibility. You will need a qualified technician with a professional-grade scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the airbag system with the new BCM.
Is this part truly plug-and-play?
It is as close as it gets. Because it’s programmed to your VIN, it will function immediately for most features. However, as noted, some vehicles may require simple relearn procedures for the brake or airbag systems, which is standard for this type of repair.
What information do you need from me?
After you place your order, you must provide us with your 17-digit Vehicle Identification Number (VIN). We cannot program or ship your BCM without it.