Is Your 2002 GM Truck Experiencing Strange Electrical Problems?
If your 2002 GMC Yukon XL 1500, Tahoe, Suburban, or Escalade is acting possessed, the Body Control Module (BCM) is often the culprit. The BCM is the central command center for your vehicle’s body electronics, managing everything from your power windows and door locks to your interior lights and security system. When it starts to fail, it can cause a cascade of frustrating and unpredictable issues that can be difficult to diagnose.
From the Diagnostic Bay
We had a 2002 Tahoe come in where the owner was convinced it was haunted. The dome lights would stay on, the radio would randomly shut off, and the power locks had a mind of their own. After checking all the usual suspects like fuses and grounds, we pinpointed the BCM. A failing internal relay was sending erratic signals throughout the truck. Installing a VIN-programmed BCM like this one solved every single issue instantly, restoring the vehicle’s functions and the owner’s peace of mind.
Common Symptoms of a Failing Body Control Module
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights staying on, flickering, or not working at all.
- ✔ The security system acting erratically or preventing the vehicle from starting (Security light on).
- ✔ The horn honking unexpectedly or not working when pressed.
- ✔ Inaccurate or dead gauges on the instrument cluster.
- ✔ Erratic behavior from the radio or climate control systems.
- ✔ “Service 4WD” or other warning messages appearing on the dash.
The Direct-Fit Solution: A Programmed 2002 Yukon XL BCM
Don’t let a faulty module keep your truck off the road. This Body Control Module, part number 15063577, is the definitive solution for your vehicle. We take the guesswork and hassle out of the repair process. Simply provide us with your vehicle’s VIN (Vehicle Identification Number) during checkout, and our technicians will program the module with the latest GM-certified software specific to your truck’s configuration. This ensures a seamless, plug-and-play installation without the need for an expensive trip to the dealership for coding.
This module is a direct replacement for several service numbers, guaranteeing compatibility. Plus, with our no-core-charge policy, you can keep your original module without the hassle of shipping it back.
Installation and Post-Installation Requirements
The BCM is typically located under the driver’s side of the dashboard, near the steering column. While the physical replacement is straightforward for a DIY mechanic, some electronic ‘handshake’ procedures may be necessary after installation to ensure all systems communicate correctly.
- Airbag System Sync: If the airbag warning light illuminates after you install the new BCM, a ‘Setup SDM Primary Key in BCM’ procedure is required. This syncs the new BCM with the airbag’s Sensing and Diagnostic Module (SDM) and must be performed with a bi-directional scan tool.
- Brake Pedal Position Relearn: In some cases, a recalibration of the brake pedal position sensor may be needed. This is crucial for the proper operation of your brake lights and traction control system.
Please note: Specific procedures can vary. We always recommend consulting a factory service manual or a qualified technician for guidance.
Guaranteed Compatibility
This BCM is a direct replacement for the following part numbers: 15063577, 15081857, 19208544, 15095335, DKAJ, DPNW. It is designed to fit the following 2002 models:
- GMC Yukon & Yukon XL 1500 (4×4)
- Chevrolet Tahoe & Suburban 1500 (4×4)
- Chevrolet Avalanche 1500 (4×4)
- Cadillac Escalade & Escalade EXT
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM is a computer that controls and monitors most of the non-engine related electronic functions in your vehicle. This includes power windows, locks, lights, security system, wipers, and more. It acts as the central hub for these systems.
Do I need to program this BCM?
No. This BCM comes fully programmed to your vehicle’s specific VIN. You must provide your VIN at the time of purchase so we can load the correct software and vehicle options before shipping it to you. This makes the installation process much simpler.
Where is the BCM located on my 2002 Yukon XL?
The BCM is located under the driver’s side dashboard, typically to the left of the steering column. It’s a black plastic box with several large electrical connectors.
Why do you need my VIN?
The VIN (Vehicle Identification Number) allows us to access the exact factory build data for your truck. This includes information about its engine, transmission, 4×4 system, and other options. We use this data to program the BCM correctly so that all features in your vehicle work as intended from the factory.
Will I need special tools for the installation?
For the physical replacement, you’ll only need basic hand tools. However, as noted in the description, you may need a professional-grade bidirectional scan tool for post-installation procedures like the Airbag System Sync or Brake Pedal Position Relearn if they are required for your vehicle.