End Electrical Frustration and Restore Full Function to Your GM Truck
Are you dealing with baffling electrical issues in your truck or SUV? Flickering lights, power windows with a mind of their own, or a security system that won’t cooperate are common signs of a failing Body Control Module (BCM). This vital computer is the central hub for your vehicle’s body electronics, and when it malfunctions, it can cause a cascade of frustrating problems. This pre-programmed BCM is the definitive, hassle-free solution to get your vehicle back to 100% operational condition, just like the day it left the factory.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty BCM is the likely culprit. This module is the direct fix for:
- Intermittent or non-working power windows, door locks, and mirrors.
- Interior lights or dashboard lights behaving erratically.
- The security system engaging randomly or preventing the engine from starting (Passlock issues).
- Erratic windshield wiper or radio operation.
- Communication errors with other vehicle modules, often flagged by diagnostic trouble codes (DTCs) like U-codes.
Instead of paying for expensive diagnostic time and programming fees at a dealership, this module arrives ready for installation. We use your vehicle’s VIN to flash the unit with the latest, most stable software updates from GM, ensuring optimal performance and compatibility. For many owners, this is the most effective way to repair their 2002 Avalanche 1500 BCM and related GM vehicles.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: Simply provide your VIN during checkout, and we handle the complex programming. This eliminates the need for expensive dealer-only tools, saving you time and money.
- ✔ Plug & Drive Installation: Because the module is pre-flashed, installation is a straightforward process of swapping the part. Most DIY mechanics can complete the job with basic tools.
- ✔ Loaded with Latest GM Software: Your BCM will be updated with the newest software available, correcting many of the glitches and bugs present in the original factory programming.
- ✔ No Core Charge Required: Keep your old module. There’s no need to worry about the cost or hassle of shipping a core back to us.
- ✔ Broad GM Compatibility: This unit directly replaces a wide range of part numbers, including 15063578, 15081796, 15095334, and 19208537, across dozens of GM trucks, vans, and SUVs from 2002-2005.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
Expert Insight: Why a Pre-Programmed BCM is the Smart Choice
As a technician, I’ve seen countless vehicle owners chase electrical gremlins for weeks, replacing switches and relays only to find the BCM was the root cause. These modules live in a harsh environment, subject to heat, vibration, and voltage fluctuations that eventually degrade internal components. Buying a used BCM from a salvage yard is a gamble—it could have the same issues as your old one and will still require costly dealer programming. Our solution for the 2002 Avalanche 1500 BCM provides a fully updated and correctly configured module, which is the most reliable and cost-effective path to a lasting repair.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that acts as the central command center for your vehicle’s electronic accessories. It controls functions that aren’t related to the engine, such as power windows, locks, interior and exterior lighting, the security system, wipers, and the radio.
Is this module difficult to install?
For someone with basic mechanical skills, the installation is straightforward. The BCM is typically located under the steering column or in the center dash area. The process involves disconnecting the battery, removing a few trim panels, and swapping the electrical connectors to the new module. Since our 2002 Avalanche 1500 BCM comes pre-programmed, no special computer tools are needed for the initial setup.
Do I need to send my old BCM back?
No. This product has no core charge. You can keep, recycle, or dispose of your original module at your convenience, simplifying the entire process for you.
What if my airbag light comes on after installation?
In some cases, the new BCM may need to be synced with the airbag system (SDM). If the airbag light appears, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure. This is a simple sync function that a qualified mechanic can perform.
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 program and ship your BCM without it. This ensures the module is a perfect electronic match for your vehicle’s specific options.