Restore Your Vehicle’s Brain and End Electrical Frustration
If you’re dealing with bizarre electrical issues in your 2002 Cadillac Escalade or another compatible GM truck/SUV—like power windows with a mind of their own, flickering interior lights, or a security system that prevents your vehicle from starting—you’ve likely met the culprit: a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, when the BCM goes down, it creates a cascade of frustrating and unpredictable problems. This isn’t just an annoyance; it can affect everything from your radio to your security system.
This is a direct-fit replacement Body Control Module, arriving at your door fully programmed to your vehicle’s specific VIN. We load the latest GM-certified software before it ships, which means you can skip the expensive trip to the dealership for programming. Just provide your VIN during checkout, and we handle the rest. It’s the most straightforward, reliable way to get your truck or SUV back to 100% functionality.
Case Study: A Tricky Diagnosis
I remember a 2002 Sierra that came into my shop with the owner at his wit’s end. The radio would turn on and off randomly, the driver’s side power lock was dead, and the dome light wouldn’t turn off. He’d already replaced the radio and the lock actuator with no success. After hooking up my scan tool, I saw a dozen communication error codes (U-codes) pointing to a network failure. The issue wasn’t the individual components; it was the central hub—the BCM—that was failing to communicate properly. A new, programmed 2002 Escalade BCM (which shares the same architecture) solved all three problems at once. This is a classic case where chasing symptoms instead of the root cause costs time and money.
Is Your Vehicle Showing These Symptoms?
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ The security or anti-theft light is illuminated, often causing a no-start condition.
- ✔ The radio or instrument cluster behaves erratically or powers off unexpectedly.
- ✔ False warnings appearing on the driver information center.
- ✔ Communication DTCs like U0140, U0155, or other U-codes stored in various modules.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On most compatible trucks and SUVs (like the Tahoe, Suburban, and Silverado), the BCM is located under the driver’s side of the dashboard, near the steering column. On vans (Astro, Safari) and some SUVs (Blazer), it’s often behind the center dash panel.
- ✔ Remove Connectors: Carefully unplug all electrical connectors from the old BCM. They have locking tabs that need to be depressed. Do not force them.
- ✔ Swap the Module: Unbolt or unclip the old BCM from its mounting bracket and remove it. Install your new, pre-programmed BCM in its place.
- ✔ Reconnect Everything: Plug all electrical connectors securely into the new BCM. Reconnect the negative battery terminal.
- ✔ Perform Relearns (If Needed): Start the vehicle. Check for any warning lights. As noted below, an airbag or brake system relearn procedure may be required using a professional scan tool if related warning lights appear.
Important Post-Installation Information
While this 2002 Escalade BCM is designed for a simple installation, some vehicle systems may require recalibration. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This syncs the new BCM with the airbag module and requires a compatible high-end diagnostic tool.
- Brake Pedal Position Relearn: On some models, a brake pedal sensor relearn might be necessary to ensure brake lights and traction control function correctly.
Expert Advice: Always consult a factory service manual for your specific vehicle if you are unsure about any step. While many DIYers can perform this swap, having a qualified technician available for potential relearn procedures is a good backup plan.
Verified Vehicle Compatibility
This Body Control Module is a guaranteed fit for a wide range of General Motors vehicles. It directly replaces part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. Please verify your part number or match your vehicle from the list below:
- Cadillac Escalade (2002) – 4×2 Models
- Chevrolet Avalanche 1500 (2002) – 4×2 Models
- Chevrolet Blazer S10 (2002-2005)
- Chevrolet Silverado & Sierra Pickups (1500, 2500, 3500) (2002)
- Chevrolet & GMC Suburban (1500, 2500) (2002)
- Chevrolet Tahoe & GMC Yukon / Yukon XL (2002) – 4×2 Models
- Chevrolet Astro & GMC Safari (2002-2005)
- Chevrolet S10 / GMC Sonoma (2002-2004)
- GMC Jimmy S15 (2002-2005)
- GMC Sierra Denali (2002)
Note: Compatibility can depend on specific options. The provided list is comprehensive, but verifying your original part number is the best practice for a perfect match.
Frequently Asked Questions
Do I need to do anything after I order?
Yes. After you place your order, you must send us your vehicle’s 17-digit VIN. We cannot program and ship your BCM without it.
Is this a simple plug-and-play installation?
For most users, yes. We program it so you don’t need the dealer. However, as noted, some vehicles may require an additional relearn procedure for the airbag or brake systems if a warning light appears after installation.
Where is the BCM located on my 2002 Escalade?
On the 2002 Escalade, as well as the Tahoe, Yukon, and Silverado of that year, the BCM is typically found under the driver-side dashboard, near the steering column.
What if my original part number is not on your list?
If your part number is not listed (e.g., 15063578, 15081796, DKAK), please contact us with your VIN. We can verify compatibility and ensure you receive the correct module for your vehicle.
Do I have to return my old BCM?
No. This purchase has no core charge. You can keep your original module.