Restore Control Over Your GM Truck’s Electronics
Are you chasing electrical gremlins in your 2002 GMC Yukon or similar GM truck? Flickering lights, a possessed radio, power windows with a mind of their own, or a security light that prevents your truck from starting are all classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, when the BCM goes down, it can cause a cascade of frustrating and seemingly unrelated issues. This isn’t just an annoyance; it’s a reliability problem. This replacement BCM is the definitive solution, arriving pre-programmed with the latest GM software specifically for your vehicle’s VIN.
A Technician’s Notebook: The Ghost in the Machine
I once had a 2002 Sierra 2500 in my bay that was driving the owner crazy. The complaint was intermittent—sometimes the dome lights wouldn’t turn off, other times the horn would honk when using the turn signal. He’d already replaced the battery and checked all the grounds. After hooking up my scan tool, I found a slew of communication error codes (U-codes) pointing to a network problem. The BCM is the gateway for these systems. After confirming power and ground to the module were solid, we swapped in a pre-programmed BCM. All the bizarre electrical issues vanished instantly. It’s a common failure point on these trucks, and a new BCM is often the only permanent fix.
Is Your GM Truck or SUV Showing These Signs?
- ✔ Erratic or non-functional interior/exterior lights.
- ✔ Power windows, locks, or mirrors working intermittently or not at all.
- ✔ The security or anti-theft light is on, causing a no-start condition (Passlock failure).
- ✔ Gauges on the instrument cluster behaving strangely or dropping out.
- ✔ The radio or climate controls are unresponsive.
- ✔ Diagnostic Trouble Codes (DTCs) related to communication loss (U1000-U1300) or specific BCM functions are present.
The Smart Solution: VIN-Programmed and Ready to Install
Forget the hassle and expense of a dealership visit. We take the complexity out of the repair. Simply provide us with your vehicle’s VIN during checkout, and our technicians will program this 2002 Yukon BCM with the most current GM-approved software for your exact vehicle configuration. This ensures all factory-installed options work correctly right out of the box. Plus, there is no core charge, so you can keep your old module without the hassle of shipping it back.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow all systems to power down.
- ✔ Locate the BCM: On most trucks and SUVs like the Yukon, Sierra, and Silverado, the BCM is located under the steering column, behind the lower dash panel. On vans like the Astro and Safari, it’s typically behind the center dash area.
- ✔ Remove Trim Panels: Carefully remove any plastic trim panels necessary to access the BCM. These are usually held on by clips or a few screws.
- ✔ Unplug and Unbolt: Disconnect the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Then, unbolt the module from its mounting bracket.
- ✔ Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical harnesses.
- ✔ Reconnect and Test: Reinstall the trim panels and reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all functions: lights, windows, locks, radio, etc.
- ✔ Final Relearn Procedures: In some cases, post-installation steps are needed. If your airbag light is on, a professional scan tool is required for the ‘Setup SDM Primary Key in BCM’ procedure. A brake pedal position relearn may also be needed for proper brake light and traction control operation.
Guaranteed Fitment for Your GM Vehicle
This Body Control Module is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. It is guaranteed to fit the following models:
- 2002 Cadillac Escalade (4×2)
- 2002 Chevrolet Avalanche 1500 (4×2)
- 2002-2005 Chevrolet Blazer S10 / GMC Jimmy S15
- 2002-2004 Chevrolet S10 / GMC Sonoma
- 2002 Chevrolet Silverado & GMC Sierra 1500, 2500, 3500, Denali
- 2002 Chevrolet Suburban 1500 (4×2), 2500
- 2002 Chevrolet Tahoe (4×2)
- 2002-2005 Chevrolet Astro Van
- 2002 GMC Yukon (4×2)
- 2002 GMC Yukon XL 1500 (4×2), 2500
- 2002-2005 GMC Safari Van
Please verify your vehicle’s location (under steering column or center dash) and part number to ensure a perfect match.
Frequently Asked Questions
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 truck’s factory options, like power seats, keyless entry, and drivetrain. This ensures a seamless, plug-and-play installation without needing a trip to the dealer.
Is this a difficult part for a DIYer to replace?
For someone with basic mechanical skills, this is a very manageable job. The main challenge is accessing the module, which usually just involves removing a few dash panels. Since we handle the programming, the electrical part is simple plug-and-unplug.
What tools are required for the post-installation procedures?
The Airbag System Sync and Brake Pedal Position Relearn procedures require a bi-directional professional scan tool, like a Snap-on, Autel, or a GM Tech 2. Basic code readers cannot perform these functions. Many local repair shops can perform these relearns for you if needed.
Do I need to return my old BCM?
No. This part is sold with no core charge. You can keep your original module, which saves you the time and money of shipping a core back.
Will this fix my ‘Security’ light and no-start problem?
Yes, a failing BCM is one of the most common causes of Passlock security system issues on these GM vehicles. By programming this module to your VIN, the security information is correctly matched, resolving the conflict that prevents the engine from starting.