Are you chasing down electrical gremlins in your GM truck or SUV? Flickering lights, malfunctioning power windows and locks, a security system that acts up, or even a frustrating no-start condition can often be traced back to one component: a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, when the BCM starts to fail, it can create a cascade of confusing and unpredictable problems. Stop throwing parts at the issue and get the definitive solution.
This is a direct-fit replacement Body Control Module, specifically for a wide range of 2002-2005 GM vehicles. The best part? We handle the programming for you. Before we ship, we’ll flash this module with the latest GM software updates, tailored specifically to your vehicle using the VIN you provide. This eliminates the need for an expensive trip to the dealership for programming, making this a truly plug-and-play repair for both seasoned mechanics and DIY enthusiasts. Restore your vehicle’s functionality and peace of mind with a reliable, pre-programmed 2002 Escalade BCM.
Case Study: A Tricky Diagnosis
I had a 2002 GMC Sierra in my bay last month with a classic BCM failure story. The owner was frustrated because the truck would intermittently refuse to start, the dome lights would stay on, and the radio would randomly shut off. He’d already replaced the battery and checked the alternator. Using a professional scan tool, I found several U-codes (communication loss) pointing to the BCM. Instead of sending him to the dealer for a new module and programming, we ordered one of these pre-programmed units. The install took less than 30 minutes, and because it was already flashed to his VIN, the truck fired right up and all the electrical issues were gone. It’s a time and money saver that gets the job done right.
Is Your GM Truck or SUV Showing These Signs?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security or anti-theft system preventing the engine from starting (Security light on).
- ✔ Inconsistent or incorrect gauge cluster operation.
- ✔ Diagnostic trouble codes (DTCs) related to body systems or communication errors (B-codes or U-codes).
- ✔ A/C and climate control functions not working correctly.
Your Straightforward Installation Guide
Replacing the BCM is a manageable job for most DIYers. While specific locations vary, the process is generally the same. This guide for a 2002 Escalade BCM and similar GM models will help.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the BCM: On most full-size trucks and SUVs (Silverado, Sierra, Tahoe, Escalade), the BCM is located under the driver’s side of the dashboard, near the steering column. On vans (Astro, Safari) and S-series trucks/SUVs, it’s often behind the center dash area.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once unplugged, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Seat your new, pre-programmed BCM into the mounting bracket and securely plug in all 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 functions: lights, locks, windows, radio, etc. Start the vehicle to ensure it runs properly.
- Post-Installation Checks: In some cases, additional steps may be needed. If your airbag light is on, a professional scan tool is required for the ‘Setup SDM Primary Key’ procedure. A brake pedal position relearn may also be necessary for certain models.
Verified Compatibility for Your Vehicle
This module is a guaranteed fit for the following vehicles and part numbers. Please match your original part number or vehicle to this list to ensure compatibility. This unit replaces part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU.
ESCALADE 02 Body Control (BCM); (under steering column), 4×2
Chevrolet:
AVALANCHE 1500 02 (under steering column), 4×2
ASTRO 02-05 (center dash)
BLAZER S10 02-05 (center dash)
S10 PICKUP 02-04 (center dash)
SILVERADO 1500/2500/3500 PICKUP 02 (under steering column)
SUBURBAN 1500/2500 02 (under steering column), 4×2 for 1500
TAHOE 02 (under steering column), 4×2
GMC:
JIMMY S15 02-05 (center dash)
SAFARI 02-05 (center dash)
SIERRA 1500/2500/3500 PICKUP 02 (under steering column)
SIERRA DENALI 02 (under steering column)
SONOMA S15 02-04 (center dash)
YUKON 02 (under steering column), 4×2
YUKON XL 1500/2500 02 (under steering column), 4×2 for 1500
Important Note: After purchase, you MUST provide your vehicle’s 17-digit VIN to enable us to program the 2002 Escalade BCM correctly before shipping. There is no core charge—you can keep your old part.
Frequently Asked Questions
How do I provide my VIN number?
After you complete your purchase, you can send us a message with your 17-digit VIN. We cannot ship the module until we receive this information for programming.
Is this BCM truly plug-and-play?
Yes, for most vehicles. Because we program it to your VIN, it will communicate with your vehicle’s other modules, avoiding the need for dealer-level programming. However, as noted, some vehicles may require an airbag sync or brake pedal relearn with a scan tool if related warning lights appear.
What if my original part number isn’t 19208537?
This module is a direct replacement for several part numbers, including 15063578, 15081796, 15095334, DKAK, and DPNU. If your module has one of these numbers, this part will work for you.
Do I need to send my old BCM back?
No. We do not require a core return for this part. You can keep your original module.
My airbag light came on after installation. What should I do?
This can happen occasionally. It means the new BCM needs to be formally introduced to the airbag system’s computer (SDM). A qualified technician with a professional diagnostic tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.