Restore Your Truck’s Electrical Stability and Functionality
Are you battling frustrating electrical gremlins in your 2002 Silverado or other GM vehicle? Intermittent power windows, flickering dash lights, malfunctioning door locks, or a security system that acts up on its own are classic signs of a failing Body Control Module (BCM). As the central command for your truck’s body electronics, a faulty BCM can cause a cascade of confusing and unpredictable problems. This replacement BCM is the definitive solution, arriving at your door pre-programmed with the latest GM software specifically for your vehicle’s VIN. Forget expensive dealership visits for programming—this module is ready for installation right out of the box.
A Technician’s Notebook: The Phantom Drain
I once had a 2002 Sierra in the shop with a battery that would die overnight. The owner had replaced the battery and alternator, but the phantom drain persisted. After checking all the usual suspects, I hooked up my diagnostic scanner and noticed the BCM wasn’t allowing other modules to go to ‘sleep’ mode. It was keeping the network active, slowly draining the battery. We swapped in a VIN-programmed BCM like this one, and the problem was solved instantly. These modules control more than you think, and a failure can manifest in very strange ways.
Is Your GM Vehicle Showing These Symptoms?
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior dome lights or dashboard lights staying on or not working at all.
- ✔ The security or anti-theft system preventing the vehicle from starting.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Communication error codes (U-codes) stored in the system.
- ✔ Wipers or radio functioning intermittently.
A Straightforward Guide to Your BCM Installation
Installing your new 2002 Silverado BCM is a manageable job for a confident DIYer. While the exact location can vary, on most trucks like the Silverado and Sierra, it’s found under the driver’s side of the dashboard.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most 2002 GM full-size trucks, you’ll find the BCM mounted to a bracket under the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM from its mounting location.
- Install the New Module: Mount your new, pre-programmed BCM in the same position and reconnect all the electrical connectors, ensuring they click securely into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Relearns (If Needed): Start the vehicle. If you see an airbag light or notice issues with brake light operation, you may need to perform the post-installation procedures noted below with a compatible scan tool.
Verified Vehicle Compatibility
This Body Control Module is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. It is guaranteed to fit the following GM models and years:
- Chevrolet Silverado 1500, 2500, 3500 (2002)
- GMC Sierra 1500, 2500, 3500, Denali (2002)
- Chevrolet Avalanche 1500 (2002, 4×2)
- Chevrolet Tahoe (2002, 4×2)
- Chevrolet Suburban 1500, 2500 (2002, 4×2 on 1500)
- GMC Yukon & Yukon XL 1500, 2500 (2002, 4×2 on 1500/XL 1500)
- Cadillac Escalade (2002, 4×2)
- Chevrolet Blazer S10 / GMC Jimmy S15 (2002-2005)
- Chevrolet S10 / GMC Sonoma (2002-2004)
- Chevrolet Astro / GMC Safari (2002-2005)
Please ensure your original module’s part number is listed. Providing your VIN during checkout is required to ensure we send you a perfectly matched and programmed 2002 Silverado BCM.