Restore Full Functionality to Your GM Truck or SUV
Are you battling frustrating electrical gremlins in your 2002 GMC Yukon? Issues like flickering lights, unresponsive power windows, a haywire security system, or even a vehicle that refuses to start can often be traced back to a single culprit: a failing Body Control Module (BCM). As the central nervous system for your vehicle’s body electronics, when the BCM goes down, it can cause a cascade of confusing and unpredictable problems. This isn’t just an annoyance; it can be a significant safety and reliability issue.
This is your direct-fit, reliable solution. We offer a Body Control Module, compatible with part number DKAK, that arrives at your door pre-programmed to your vehicle’s specific Vehicle Identification Number (VIN). This crucial step eliminates the need for an expensive trip to the dealership for programming. Simply provide us with your VIN after purchase, and our experts will flash the module with the latest GM software updates, ensuring it communicates perfectly with your truck’s other systems right out of the box.
Case Study: A Tricky Diagnosis
A customer’s 2002 Sierra 1500 came into the shop last month with a baffling set of symptoms. The radio would turn on and off by itself, the dome light would flicker while driving, and occasionally, the truck wouldn’t start—it would just click. The battery and alternator tested fine. After checking the main grounds, we connected a high-level scan tool and noticed communication dropouts with the BCM. A failing BCM was starving other modules of data, causing these ghost-like issues. We replaced it with a VIN-programmed unit like this one, and every single problem was resolved instantly. It’s a common failure point I’ve seen on hundreds of these GM platforms.
Is Your GM Truck or SUV Showing These Signs?
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The factory security system engaging randomly or preventing the engine from starting.
- ✔ Erratic instrument panel behavior or warning lights (like the airbag light) staying illuminated.
- ✔ Communication errors with other modules when read by a scan tool.
- ✔ The radio or climate control system behaving unpredictably.
Your Straightforward BCM Installation Guide
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most GM trucks and full-size SUVs like the 2002 Yukon, the BCM is located under the driver’s side of the dashboard, near the steering column. On vans like the Astro/Safari or smaller SUVs like the Blazer, it’s often behind the center dash area.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical harnesses. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Relearn Procedures: Start the vehicle and follow the essential post-installation steps outlined below to ensure full system functionality.
Important: Post-Installation Procedures Required
After installing your new 2002 Yukon BCM, completing these final steps is critical for safety and performance. Failure to do so can leave warning lights on and systems inoperative.
- Airbag System Reset: The airbag warning light will remain on until a ‘Setup SDM Primary Key in BCM’ procedure is performed. This requires a bi-directional scan tool and syncs the new BCM with the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Sensor Relearn: Some vehicles may require a brake pedal position sensor recalibration. This ensures the brake lights and stability control systems function correctly with the new module.
Note: If you are not equipped or comfortable with these procedures, we strongly recommend seeking assistance from a qualified professional mechanic.
Verified Fitment For These GM Models
This BCM is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU and fits a wide range of vehicles, including:
- GMC Yukon / Yukon XL / Sierra / Safari (2002-2005)
- Chevrolet Tahoe / Suburban / Silverado / Avalanche (2002)
- Chevrolet S10 / Blazer (2002-2005)
- GMC S15 Sonoma / Jimmy (2002-2004)
- Cadillac Escalade (2002)
- Chevrolet Astro (2002-2005)
Please check the detailed fitment list in the product specifics to confirm compatibility with your exact model and options.
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM is a computer that manages many of your vehicle’s non-engine-related functions. Think of it as the brain for body electronics like power windows, locks, lights, the alarm system, wipers, and the instrument cluster.
Why do you need my VIN?
Your VIN (Vehicle Identification Number) allows us to program the BCM with the specific software and settings for your vehicle’s exact configuration (e.g., power seats, sunroof, trim level). This ensures it works correctly right out of the box without a trip to the dealer.
Is this part truly plug-and-play?
The module itself is plug-and-play in that it is programmed before shipping. However, as noted, you MUST perform the required post-installation procedures (like the airbag key setup) with a proper scan tool to restore full functionality and clear warning lights.
Do I need to send my old BCM back?
No core charge or return is required for this part. You can dispose of your old module responsibly.
What happens if I don’t do the brake pedal or airbag relearn procedures?
The airbag warning light will stay on, meaning the system is likely inactive, which is a major safety concern. If a brake pedal relearn is required and not performed, it could affect brake light operation or stability control functions.