Restore Your GM Truck’s Electrical System with a Plug-and-Play Solution
Are you dealing with bizarre electrical issues in your 2002 GMC Yukon XL 1500 or another compatible GM vehicle? Intermittent power windows, door locks with a mind of their own, a security light that won’t turn off, or gauges that flicker randomly are all classic signs of a failing Body Control Module (BCM). The BCM acts as the central hub for your vehicle’s body electronics, and when it fails, it can cause a cascade of frustrating and confusing problems. This isn’t just an inconvenience; a faulty BCM can even lead to a no-start condition, leaving you stranded.
This replacement BCM is the reliable, straightforward fix you need. We take the guesswork and hassle out of the repair by pre-programming the module to your vehicle’s exact Vehicle Identification Number (VIN) before it ships. This means it arrives ready for installation, loaded with the latest GM software updates to ensure peak performance and reliability. You get a solution that restores function without the expensive trip to the dealership for programming.
From the Diagnostic Bay
I remember a 2002 Sierra 2500 that came into my shop with a laundry list of complaints. The owner said the radio would turn on by itself, the driver’s side window wouldn’t go down, and the security light was always on. He had already replaced the window switch and checked fuses, but nothing worked. After connecting my scan tool, I saw multiple communication error codes (U-codes) pointing to the BCM. These modules are notorious for internal solder joint failures over time, causing these exact kinds of phantom issues. We installed a VIN-programmed BCM like this one, and in under an hour, every single electrical gremlin was gone. It’s a common failure, but thankfully, it’s a very direct fix.
Common Signs of a Failing GM BCM
If your vehicle is exhibiting any of these symptoms, a failing BCM is the likely culprit. Replacing it can resolve multiple issues at once.
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior dome lights staying on or not working at all.
- ✔ The security or anti-theft light is illuminated on the dash, possibly preventing the engine from starting.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Dashboard gauges behaving erratically or going dead intermittently.
- ✔ Communication Diagnostic Trouble Codes (DTCs), such as U0140, are stored in other modules.
A Straightforward Guide to Installation
Installing your new BCM is a manageable job for a DIYer with basic tools. The most important part—the programming—is already done for you.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to fully discharge.
- Locate the BCM: On most compatible trucks and SUVs like the Yukon, Tahoe, and Silverado, the BCM is located under the driver’s side of the dashboard, near the steering column. On vans like the Astro and Safari, it’s often behind the center dash.
- Remove the Old Module: 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 BCM: Mount your new, pre-programmed BCM in the same location and securely plug in all the electrical connectors. Ensure they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position and test all body functions—windows, locks, lights, etc.—to confirm the repair.
- Perform Relearns (If Needed): As noted in our policies, if the airbag light is on or brake functions seem off, a post-install relearn procedure may be required using a professional scan tool.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. It is guaranteed to fit the following models and options:
ASTRO 02-05 (center dash)
BLAZER S10/JIMMY S15 02-05 (center dash)
ESCALADE 02 (under steering column), 4×2
S10/S15/SONOMA 02-04 (center dash)
SAFARI (GMC) 02-05 (center dash)
SIERRA 1500/2500/3500 PICKUP 02 (under steering column)
SIERRA DENALI 02 (under steering column)
SILVERADO 1500/2500/3500 PICKUP 02 (under steering column)
SUBURBAN 1500/2500 02 (under steering column), 4×2
TAHOE 02 (under steering column), 4×2
YUKON 02 (under steering column), 4×2
YUKON XL 1500 02 (under steering column), 4×2
YUKON XL 2500 02 (under steering column)
Frequently Asked Questions
Do I need to send you my old BCM?
No. This purchase comes with no core charge. You can keep your original module, which saves you the time and expense of a core return.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us a message with your 17-digit VIN. We cannot program and ship your module without it. Please double-check it for accuracy.
Is this BCM truly plug-and-play?
Yes, for the vast majority of functions. Because we program it to your VIN, it will control your vehicle’s specific options correctly upon installation. In some cases, as with any BCM replacement, additional calibrations like an Airbag System Sync or Brake Pedal Position Relearn may be needed.
What tools are needed for the post-installation procedures?
The ‘Setup SDM Primary Key in BCM’ (for the airbag light) and the brake sensor relearn must be performed with a bi-directional professional diagnostic tool, such as a Tech 2, Snap-on, or Autel scanner. Most local repair shops have this capability.
Will this fix my ‘Service 4WD’ light?
A faulty BCM can sometimes cause false warning lights, but the ‘Service 4WD’ message is typically related to the Transfer Case Control Module (TCCM) or components in the 4×4 system itself. It’s best to diagnose that issue separately.
What if I have a different part number on my original BCM?
This module replaces several part numbers, including 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. If your part number is on this list, this module is the correct replacement for your vehicle.