Restore Your Vehicle’s Electrical System with a VIN-Programmed BCM
Are you battling frustrating electrical gremlins in your 2002 Cadillac Escalade or another compatible GM truck? Flickering interior lights, malfunctioning power windows, a security light that won’t turn off, or a vehicle that refuses to start can often be traced back to a single component: a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, its failure can cause widespread and confusing issues. This isn’t just an inconvenience; it’s a breakdown in your vehicle’s core functionality. This replacement 2002 Escalade BCM is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a straightforward installation.
A Technician’s Notebook: The Phantom Battery Drain
I once had a 2002 GMC Sierra in the shop with a classic BCM failure symptom: a parasitic battery drain that left the owner stranded multiple times. After checking the alternator and battery, my diagnostics pointed to the BCM. It wasn’t fully going to ‘sleep’ after the truck was turned off, keeping certain circuits active and slowly draining the battery overnight. Swapping in a VIN-programmed BCM like this one solved the problem instantly. The owner went from needing a jump start every other morning to having a reliable truck again. These modules are notorious for internal circuit board failures, and a direct replacement is the only long-term fix.
Is Your Truck Showing These Symptoms?
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Erratic instrument cluster behavior, including gauges that drop out or warning lights that stay on.
- ✔ The security or anti-theft light remains illuminated, potentially causing a no-start condition.
- ✔ Interior dome lights or courtesy lights staying on or not working at all.
- ✔ Radio or climate control systems functioning incorrectly.
- ✔ Communication errors with other modules, often logged as U-series DTCs.
The Power of Pre-Programming
One of the biggest hurdles in replacing a modern vehicle computer is the need for expensive, dealer-level programming. We eliminate that step entirely. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash this module with the latest GM software specific to your truck’s configuration. This ensures all factory options work as intended right out of the box, saving you a costly trip to the dealership and hours of diagnostic headaches. This service makes the repair accessible for both professional mechanics and dedicated DIYers.
A Straightforward Guide to Installation
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the BCM: On most of these GM trucks and vans, the BCM is located under the driver’s side of the dashboard, often near the steering column or behind the center dash panel.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that must be depressed to be released. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely plug in all the electrical connectors. You should hear a click as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, radio, lights, etc.—to confirm proper operation.
Important Post-Installation Notes
While this module is programmed for your vehicle, some systems may require a ‘handshake’ procedure after installation. If your airbag warning light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ function. Additionally, some models may require a Brake Pedal Position Relearn to ensure correct brake light and traction control operation. These are standard procedures for this type of repair. As always, consulting a factory service manual for your specific vehicle is recommended.
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 vehicles:
- Cadillac Escalade: 2002 (4×2)
- Chevrolet Avalanche 1500: 2002 (4×2)
- Chevrolet Astro Van: 2002-2005
- Chevrolet Blazer S10 / GMC Jimmy S15: 2002-2005
- Chevrolet S10 / GMC Sonoma: 2002-2004
- Chevrolet Silverado & GMC Sierra (1500, 2500, 3500, Denali): 2002
- Chevrolet Suburban & GMC Yukon XL (1500, 2500): 2002
- Chevrolet Tahoe & GMC Yukon: 2002 (4×2)
- GMC Safari Van: 2002-2005
With our expert programming and a no-core-charge policy, you can get your truck’s essential features working correctly again. Order your 2002 Escalade BCM today and put an end to those electrical frustrations.
Do I need to do any programming myself?
No. We handle all the programming before the module is shipped. Just provide your vehicle’s VIN at checkout, and it will arrive ready to install with the latest GM software for your specific vehicle.
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer that manages and controls many of your vehicle’s non-engine-related electronic features. This includes power windows, door locks, interior and exterior lighting, the security system, and the instrument cluster.
Is this a difficult part to install for a DIYer?
For someone with basic mechanical skills, the physical replacement is straightforward. It typically involves removing a few dash panels and swapping electrical connectors. The most significant benefit of our product is that the complex programming is already done for you, making the job much easier.
Will this fix my ‘Security’ light issue?
In many cases, yes. A faulty BCM is a very common cause for the anti-theft or security light to stay on, which can prevent the vehicle from starting. This programmed module restores proper communication and often resolves that specific issue.
What does ‘No Core Charge’ mean?
It means you do not have to send your old, faulty BCM back to us. There are no extra fees or deposits, which simplifies the process and saves you money on return shipping.