Restore Full Electrical Control to Your GM Truck or SUV
Are you tired of chasing electrical gremlins in your 2002 GMC Yukon or other compatible GM vehicle? Intermittent power windows, flickering dash lights, a security system that has a mind of its own, or a frustrating no-start condition are all classic signs of a failing Body Control Module (BCM). As the central nervous system for your vehicle’s body electronics, a faulty BCM can cause a cascade of confusing and unpredictable problems. In my 20+ years of diagnostics, I’ve seen these modules cause more headaches for owners and technicians than almost any other electronic component. The good news is, there’s a reliable, straightforward fix.
This isn’t just a replacement part; it’s a complete solution. We take the guesswork and high dealership costs out of the equation. Simply provide us with your vehicle’s VIN after purchase, and our experts will program this BCM with the latest official GM software specifically for your truck or SUV. This means it arrives at your door ready for installation, saving you a trip to the dealer and the hefty bill for programming. Get your vehicle’s essential functions—from interior lighting and power locks to the anti-theft system—working reliably again with this pre-programmed 2002 Yukon BCM.
From the Diagnostic Bay
A customer brought in his ’02 Silverado 2500 last month with a truly bizarre issue. The radio would turn on by itself, the dome light would flicker while driving, and occasionally, the truck just wouldn’t start—the security light would be flashing. He’d already replaced the battery and checked the alternator. After hooking up the scan tool, I saw a handful of communication error codes pointing toward the BCM. Instead of a costly diagnostic rabbit hole, we swapped in one of our pre-programmed modules. The entire job took less than an hour, and all the electrical ghosts were gone. He called a week later to say his truck hadn’t run that smoothly in years. This is a common story for these vehicles, and a new BCM is often the definitive fix.
Is Your GM Truck or SUV Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your Body Control Module needs attention:
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ The security or anti-theft system preventing the vehicle from starting.
- ✔ Horn honking randomly or not working when pressed.
- ✔ Inaccurate or dead gauges on the instrument cluster.
- ✔ Communication error codes (U-codes) stored in the system.
- ✔ The “Service 4WD” message appearing without any actual transfer case issues.
A Straightforward Guide to Your BCM Installation
Installing your new BCM is a manageable job for a DIY enthusiast. While the exact location varies slightly by model (under the steering column for trucks/SUVs, center dash for vans), the process is generally similar.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait 10-15 minutes to allow all systems to power down completely.
- Locate the BCM: On most Yukons, Tahoes, and Silverados, you’ll find it under the driver’s side of the dashboard, often mounted to a bracket near the steering column. You may need to remove a lower dash panel for access.
- Disconnect the Connectors: Carefully unclip the multiple wiring harness connectors from the old BCM. They have locking tabs, so don’t force them. Note their colors and positions if it helps, though they are typically keyed to only fit in the correct slot.
- Remove the Old Module: Unbolt or unclip the old BCM from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all the wiring harnesses.
- Reconnect the Battery: Reattach the negative battery terminal.
IMPORTANT POST-INSTALLATION STEPS: After installing this 2002 Yukon BCM, two final procedures may be required. To clear a persistent airbag warning light, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ function. Additionally, some vehicles require a brake pedal position sensor recalibration to ensure proper brake light function and system performance. If you are not equipped to perform these steps, a qualified local mechanic can complete them for you.
Verified Vehicle Compatibility List
This module is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. It is guaranteed to fit the following vehicles:
- 2002 GMC Yukon / Yukon XL (4×2)
- 2002 Chevrolet Tahoe / Suburban 1500 & 2500 (4×2)
- 2002 Cadillac Escalade (4×2)
- 2002 Chevrolet Avalanche 1500 (4×2)
- 2002 GMC Sierra 1500 / 2500 / 3500 & Denali
- 2002 Chevrolet Silverado 1500 / 2500 / 3500
- 2002-2005 Chevrolet Blazer S10 / GMC Jimmy S15
- 2002-2004 Chevrolet S10 / GMC Sonoma S15
- 2002-2005 Chevrolet Astro Van
- 2002-2005 GMC Safari Van
Please verify your original part number or consult the detailed fitment list to ensure this is the correct part for your specific vehicle and options.
Frequently Asked Questions about the 2002 Yukon BCM
- Do I need to do any programming after I receive this BCM?
- No. We program the module to your vehicle’s VIN before shipping. It arrives ready to be installed. However, post-installation procedures like an airbag key setup or brake pedal recalibration may be necessary.
- What information do you need from me?
- After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). This is essential for us to program the BCM correctly.
- Is this a difficult part to replace myself?
- For most DIYers with basic tools, this is a very manageable replacement. The primary challenge is accessing the module under the dashboard. The physical swap is simple plug-and-play.
- Will this fix my security light and no-start problem?
- A faulty BCM is one of the most common causes of security system issues (Passlock/Passkey) on these GM models. While other issues can cause this, replacing a failed BCM is a very frequent and effective solution.
- What happens if I don’t do the airbag or brake pedal procedures?
- If the ‘Setup SDM Primary Key’ procedure is required and not performed, the airbag warning light will remain illuminated on your dash. If the brake pedal recalibration is needed, it could affect brake light operation or other related safety systems.
- Does this BCM come with a warranty?
- Yes, all of our electronic modules come with a standard warranty. Please see the warranty tab on the product page for complete details and duration.