Restore Full Electronic Functionality to Your GM Truck or SUV
Are you battling frustrating electrical problems in your 2002 Chevrolet Avalanche or other GM vehicle? Symptoms like erratic power windows, malfunctioning door locks, a persistent security light, or interior lights that won’t turn off are often traced back to a single component: 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 confusing and annoying issues. This replacement Body Control Module is the definitive solution to restore your vehicle’s functions to factory-perfect condition.
From the Diagnostic Bay
We had a 2002 Sierra in the shop with a classic “electrical gremlin” case. The owner had replaced the driver’s side window switch twice, but the window would still only work intermittently. The dome lights would sometimes stay on, draining the battery. After checking the wiring and switches, we hooked up our scanner and found multiple communication codes pointing to the BCM. A faulty BCM was sending bad signals, making good parts seem faulty. Installing a VIN-programmed BCM like this one solved every single issue in one go, saving the customer from further guesswork and expensive parts.
Symptoms of a Failing GM Body Control Module
- ✔ Power windows, mirrors, or door locks operating erratically or not at all.
- ✔ The anti-theft or security light stays on, potentially causing a no-start condition.
- ✔ Interior dome lights or dashboard lights flicker or fail to turn on/off correctly.
- ✔ The horn honks unexpectedly or doesn’t work when pressed.
- ✔ Radio and climate control display issues.
- ✔ False warnings on the driver information center (DIC).
Why Choose Our Programmed 2002 Avalanche BCM?
Getting back on the road shouldn’t be complicated. Our process eliminates the most difficult part of replacing a BCM. We handle the programming for you before the part ever leaves our facility. Simply provide us with your vehicle’s VIN during checkout, and we will flash the module with the latest GM software specific to your truck. This means no expensive trips to the dealership for programming. It’s a true plug-and-play solution designed to save you time and money. This module is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU, ensuring wide compatibility across many GM models.
Important Post-Installation Information
While our BCM is programmed for a straightforward installation, some vehicles may require additional steps to sync with other onboard systems. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light operation and traction control performance.
Always consult a factory service manual or a qualified technician if you are unsure about any part of the installation process.
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. This Body Control Module comes fully programmed to your vehicle’s VIN before we ship it. It is ready for installation right out of the box, saving you from costly dealership programming fees.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship the part without it, as the programming is essential for it to function in your vehicle.
Where is the BCM located on my 2002 GM truck?
The location can vary slightly. On most trucks and SUVs like the Silverado, Sierra, Tahoe, and Avalanche, it is typically found under the driver’s side of the dashboard, near the steering column. On vans like the Astro and Safari, it is often located behind the center dash panel.
Will this fix my security light or starting issues?
A constantly lit security light and related no-start conditions are very common symptoms of a failed BCM. This part is designed to resolve those issues by restoring proper communication with your vehicle’s anti-theft system.
Is there a core charge for this part?
No, there is no core charge. You can keep your old, non-working module without needing to send it back to us.
What if my original part number isn’t 15063578?
This BCM is a direct replacement for several part numbers, including 15081796, 15095334, and 19208537. As long as your vehicle is listed in the compatibility chart and you have one of the interchangeable part numbers, this module will work for you.