Restore Your Truck’s Electrical System with a Plug-and-Play Solution
Are you battling strange and frustrating electrical issues in your 2002 Chevrolet Avalanche or other GM truck? Flickering lights, malfunctioning power windows, a security light that won’t turn off, or intermittent starting problems are all classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can create a cascade of seemingly unrelated problems. Don’t let these electrical gremlins keep you off the road. Get your truck back to 100% with this pre-programmed 2002 Avalanche BCM, the most reliable and straightforward solution available.
Unlike a generic part from a local store, this BCM is not just a replacement; it’s a complete, ready-to-install fix. We take the hassle and expense of dealer programming out of the equation. Simply provide us with your vehicle’s VIN after purchase, and our technicians will flash the module with the latest official GM software specific to your truck’s configuration. This ensures perfect communication between all vehicle systems and restores the functionality you’ve been missing. This module is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU.
From the Diagnostic Bay
We recently had a 2002 Sierra 2500 in the shop with a list of bizarre symptoms. The owner said the dome light would stay on randomly, the radio would cut out, and sometimes the truck wouldn’t start, but only on Tuesdays—or so he thought. He had already replaced the battery and checked all the fuses. We connected our scan tool and saw multiple communication errors pointing toward the BCM. Instead of a costly and time-consuming diagnostic chase, we installed one of our pre-programmed BCMs. Within an hour, every single issue was resolved. The owner was thrilled to have his reliable workhorse back without a massive dealership bill.
Common Symptoms of a Failing 2002 Avalanche BCM
- ✔ Erratic power windows, door locks, or interior/exterior lights that seem to have a mind of their own.
- ✔ The security or anti-theft light stays on, preventing the engine from starting.
- ✔ Instrument cluster gauges behaving erratically or not working at all.
- ✔ The radio, climate controls, or other interior accessories function intermittently.
- ✔ The horn honks unexpectedly or the car alarm activates for no reason.
- ✔ You receive communication error codes (U-codes) when scanning the vehicle.
Installation and Post-Install Procedures
Physically installing the BCM is typically straightforward. On most compatible models like the 2002 Avalanche, Silverado, and Sierra, it’s located under the steering column. Once the new, pre-programmed module is connected, your vehicle should start and run. However, depending on your vehicle’s specific systems, a couple of simple relearn procedures may be necessary.
- Airbag System Sync: If you notice the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is required. This syncs the new BCM with the airbag system’s Sensing and Diagnostic Module (SDM) and must be performed with a professional-grade scan tool.
- Brake Pedal Position Relearn: In some cases, the brake pedal position sensor may need to be recalibrated to ensure proper operation of the brake lights and traction control system.
We make the process even easier with our no core charge policy. You don’t need to worry about the cost or hassle of sending your old, faulty module back to us. Keep it, recycle it, or dispose of it as you see fit.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the main computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, door locks, interior and exterior lighting, the security system, wipers, and the instrument cluster, ensuring all these components work together correctly.
Is this BCM difficult to install?
The physical replacement is generally simple for someone with basic mechanical skills, often involving just a few bolts and electrical connectors under the dashboard. The key benefit of our product is that the complex software programming is already done for you, making it a plug-and-play process. Some vehicles may require simple relearn procedures as noted in the description.
Do I need to send my old BCM back?
No. We have a no-hassle, no core charge policy. You can keep your original module without any extra fees or deductions.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive the VIN, as we use it to load the correct GM software onto your module.
What happens if my airbag light comes on after installation?
This is a known possibility. It means the new BCM needs to be electronically introduced to the vehicle’s airbag module (SDM). A technician with a bi-directional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Will this fit my vehicle if it’s not a 2002 Avalanche?
Yes, this BCM is compatible with a wide range of 2002-2005 GM trucks and vans. Please check the detailed fitment list in the description to confirm compatibility with your specific make, model, and year, including vehicles like the Silverado, Sierra, Tahoe, Yukon, Astro, and S10/Blazer.