Restore Your GM Truck’s Electrical System with a Plug-and-Play Solution
Are you dealing with baffling electrical issues in your 2002 GMC Yukon, Silverado, or another compatible GM vehicle? Flickering dash lights, power windows with a mind of their own, or a security system that randomly prevents your truck from starting are classic signs of a failing Body Control Module (BCM). As the central computer for your vehicle’s comfort and security features, a faulty BCM can cause a cascade of frustrating problems. This replacement BCM is the definitive solution, arriving pre-programmed with the latest GM software matched specifically to your vehicle’s VIN.
Forget about expensive dealership visits and the hassle of programming. We handle the complex part for you. Simply provide your VIN during checkout, and we’ll ship a module that’s ready for installation. This is the most efficient way to restore your vehicle’s functionality and get back on the road with confidence. This module is a direct replacement for multiple part numbers, including 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU.
A Technician’s Notebook
I once had a 2002 Sierra in my bay with a classic ‘parasitic draw’ issue. The owner had replaced the battery twice, but it would still be dead every few mornings. He was convinced it was the alternator or a bad ground. After running diagnostics, I found the BCM wasn’t going into ‘sleep mode’ when the truck was off. It was constantly drawing a small amount of power, enough to drain the battery over 12-24 hours. We installed a VIN-programmed BCM just like this one, and the problem was solved instantly. It’s a reminder that what looks like a battery problem is often a computer issue in modern vehicles.
Common Signs of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ The security or anti-theft light stays on, causing a no-start condition.
- ✔ Interior dome lights or dashboard lights flicker or do not work correctly.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Communication error codes, such as U1000, stored in other modules.
- ✔ Wipers behaving erratically or not parking in the correct position.
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 of these GM trucks and vans, the BCM is located under the driver’s side of the dashboard, often near the steering column or behind a kick panel. On Astro/Safari vans, it’s typically in the center dash area.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old module. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, ensuring they click into place.
- ✔ Reconnect Power: Reattach the negative battery terminal and tighten it securely.
- ✔ Perform Final Checks: Start the vehicle and test all body functions—windows, locks, lights, wipers, etc. Note that some models may require the post-installation procedures detailed below.
Important Post-Installation Information
While this 2002 Yukon BCM is programmed for your VIN, some vehicle systems may require a ‘handshake’ with the new module. This is normal. Two common procedures are:
- Airbag System Sync: If your airbag warning light is on after installation, a scan tool procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the systems.
- Brake Pedal Position Relearn: On some models, a relearn for the brake pedal position sensor may be required to ensure proper brake light and traction control operation.
Always consult a factory service manual or a qualified technician if you are unsure about these procedures.
Will This Fit My GM Truck or Van?
This module is guaranteed to fit the following vehicles and options. Please verify your part number or vehicle application before ordering.
ASTRO 02-05 Body Control (BCM); (center dash)
BLAZER S10/JIMMY S15 02-05 Body Control (BCM); (center dash)
ESCALADE 02 Body Control (BCM); (under steering column), 4×2
S10/S15/SONOMA 02-04 Body Control (BCM)
SAFARI (GMC) 02-05 Body Control (BCM); (center dash)
SIERRA 1500 PICKUP 02 Body Control (BCM); (under steering column)
SIERRA 2500 PICKUP 02 Body Control (BCM); (under steering column)
SIERRA 3500 PICKUP 02 Body Control (BCM); (under steering column)
SIERRA DENALI 02 Body Control (BCM); (under steering column)
SILVERADO 1500 PICKUP 02 Body Control (BCM); (under steering column)
SILVERADO 2500 PICKUP 02 Body Control (BCM); (under steering column)
SILVERADO 3500 PICKUP 02 Body Control (BCM); (under steering column)
SUBURBAN 1500 02 Body Control (BCM); (under steering column), 4×2
SUBURBAN 2500 02 Body Control (BCM); (under steering column)
TAHOE 02 Body Control (BCM); (under steering column), 4×2
YUKON 02 Body Control (BCM); (under steering column), 4×2
YUKON XL 1500 02 Body Control (BCM); (under steering column), 4×2
YUKON XL 2500 02 Body Control (BCM); (under steering column)
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings for your vehicle’s specific options. This ensures proper communication with other modules and is essential for a successful repair.
Is this a simple plug-and-play installation?
For most functions, yes. Because we pre-program the module, the main installation is plug-and-play. However, as noted above, some vehicles may require an additional relearn procedure for the airbag or brake systems, which requires a compatible scan tool.
Do I need to send my old BCM back?
No. This part is sold without a core charge. You can keep your original module, which can be helpful for double-checking part numbers or for future reference.
Will this 2002 Yukon BCM fix my ‘Security’ light issue?
Yes, a constantly illuminated ‘Security’ light and a subsequent no-start condition are among the most common symptoms of a failed BCM. This VIN-programmed module is designed to resolve that issue.
What if my part number isn’t an exact match to 15063578?
This module is a direct replacement for several part numbers, including 15081796, 15095334, 19208537, DKAK, and DPNU. If your module has one of these numbers, this part is compatible.