Restore Your GM’s Electrical System with a Plug-and-Play Solution
Are you chasing down electrical gremlins in your truck or SUV? Flickering dashboard lights, power windows with a mind of their own, or a security system that randomly prevents your vehicle from starting 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 fails, it can cause a cascade of frustrating and unpredictable problems. This isn’t just an annoyance; a faulty BCM can impact safety features and leave you stranded. Stop throwing parts at the problem and get the definitive fix.
We offer a reliable, fully tested Body Control Module compatible with part number 15081796 and others. The best part? We handle the complicated part for you. Simply provide your vehicle’s VIN at checkout, and our technicians will program the module with the latest GM software specific to your 2002 Escalade or other compatible vehicle. This means no expensive trips to the dealership for programming. It arrives at your door ready for installation, saving you time, money, and headaches. Plus, there is no core charge, so you can keep your old part without any extra hassle or cost.
Case Study: The Ghost in the Machine
A customer brought in a 2002 Sierra 2500 with a truly baffling issue. The dome lights would stay on, the radio presets would reset overnight, and the power locks would cycle on their own. They had already replaced the battery and checked all the fuses. After connecting my scan tool, I saw several ‘U’ codes (U0140, U0155), indicating a loss of communication with the BCM. These communication faults are a dead giveaway. Instead of a complex wiring repair, the root cause was internal failure of the original BCM. We installed a pre-programmed module just like this one, and within 30 minutes, all the ‘ghosts’ were gone. It’s a common failure I’ve seen hundreds of times on this GM platform.
Common Signs of a Failing GM BCM
If your vehicle is exhibiting any of these symptoms, a failing BCM is the likely culprit. A faulty module can also trigger diagnostic trouble codes (DTCs), most commonly communication errors.
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security or anti-theft system engaging randomly, causing a no-start condition.
- ✔ Dashboard warning lights (like the airbag or brake light) illuminating for no reason.
- ✔ Intermittent operation of the horn, windshield wipers, or radio.
- ✔ Communication DTCs such as U0140, U0141, U0155, or B1000.
Your Straightforward BCM Installation Guide
Installing your pre-programmed 2002 Escalade BCM is a manageable job for a confident DIYer. While the exact location varies (typically under the steering column or in the center dash), the process is generally similar across models.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On most full-size trucks and SUVs like the Escalade, Tahoe, and Silverado, the BCM is located under the driver’s side of the dashboard, often near the steering column. On vans like the Astro/Safari, it’s typically behind the center dash panel.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket and remove it.
- Install the New Module: Mount the new BCM in the same location and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect Battery: Reattach the negative battery terminal. Turn the key to the ‘ON’ position and verify that your interior lights, power functions, and instrument cluster are operating correctly.
- Perform Post-Install Procedures: In some cases, additional steps are needed. If your airbag light is on, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure. A Brake Pedal Position Relearn might also be necessary for proper brake light and traction control function.
Verified Fitment for Your GM Vehicle
This module is a direct replacement for several part numbers, including 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. It is guaranteed to fit the following vehicles:
- ✔ 2002 Cadillac Escalade (4×2)
- ✔ 2002 GMC Yukon / Yukon XL (4×2) / Sierra Denali
- ✔ 2002 Chevrolet Tahoe (4×2) / Suburban / Avalanche 1500 (4×2)
- ✔ 2002 Chevrolet Silverado & GMC Sierra 1500, 2500, 3500 Pickups
- ✔ 2002-2005 Chevrolet Blazer S10 / GMC Jimmy S15
- ✔ 2002-2004 Chevrolet S10 / GMC Sonoma
- ✔ 2002-2005 Chevrolet Astro / GMC Safari
Please verify your original part number or consult the detailed fitment list to ensure compatibility with your specific vehicle configuration. A properly functioning 2002 Escalade BCM is essential for your vehicle’s operation.
Frequently Asked Questions
Frequently Asked Questions
Do I really need to provide my VIN?
Yes, absolutely. Providing your VIN is critical. We use it to load the correct, vehicle-specific software and the latest updates from GM onto your BCM. This ensures it communicates properly with your vehicle’s other modules right out of the box.