Restore Full Control Over Your Truck’s Electronics
Are you chasing electrical ghosts in your 2003-2006 GMC Yukon XL 2500 or another GM truck? One minute the air conditioning works, the next it doesn’t. The power locks have a mind of their own, and a persistent airbag light stays on your dash. As a technician with over two decades of experience, I can tell you that these frustrating, intermittent issues often point to one culprit: a failing Body Control Module (BCM). This isn’t just an inconvenience; it’s a breakdown in your vehicle’s central command for all body-related functions. This VIN-programmed BCM, part number 15116066, is the definitive, hassle-free solution to restore your truck’s performance and your peace of mind.
A Technician’s Notebook: The Silverado with a Mind of its Own
A customer brought in his ’05 Silverado 2500, completely fed up. His radio would cut out, the driver’s window wouldn’t roll down on hot days, and his security light would flash randomly, sometimes preventing the truck from starting. He’d replaced the battery and checked fuses, but the problems were getting worse. A quick scan showed a slew of communication DTCs and a B1001 code. Instead of spending hours tracing wires, we identified the BCM as the source. By installing a VIN-programmed module like this one, we had him back on the road in under 30 minutes with all issues resolved. It’s a common failure, and this is the most efficient fix.
Is Your Truck Exhibiting These Common BCM Failure Symptoms?
A faulty BCM can cause a wide range of problems that seem unrelated. If you’re experiencing any of the following, a replacement is likely the answer:
- ✔ Intermittent or non-functional power windows, door locks, or interior lights.
- ✔ HVAC controls that work sporadically or a blower motor that won’t turn on.
- ✔ An illuminated airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- ✔ Security system malfunctions, including the vehicle failing to start (Passlock issues).
- ✔ Erratic behavior from windshield wipers or dashboard gauges.
- ✔ A cluster of seemingly random communication codes (U-codes) stored in the system.
A Straightforward Guide to Your BCM Installation
One of the best features of this module is its simple, plug-and-play installation. No complex wiring or special tools are needed for the physical swap. For a DIYer, this is a job you can complete in your driveway in less than 15 minutes.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before starting work.
- Locate the BCM: On most compatible trucks and SUVs like the 2003-2006 Yukon XL BCM, it’s located under the driver’s side dashboard, just to the left of the steering column. In Express/Savana vans, it’s typically in the center dash area.
- Swap the Module: The BCM is held in by simple clips or tabs. Carefully unplug the electrical connectors (they are color-coded and keyed, so you can’t mix them up), release the module, and remove it.
- Install the New BCM: Snap the new module into the mounting bracket and firmly reconnect all electrical harnesses.
- Power Up: Reconnect the battery terminal. Your vehicle is now ready to go.
- Post-Installation Checks: In some cases, a professional scan tool may be needed for specific relearn procedures. If the airbag light remains on, an “Setup SDM Primary Key in BCM” procedure is required to sync the systems. Similarly, a “Brake Pedal Position Relearn” might be necessary on certain models.
Verified Vehicle Compatibility List
This module is a direct-fit replacement for a wide range of General Motors vehicles. Please verify your model and year below. This part is interchangeable with numbers: 10383536, 15136225, 15136877, 15198116, and others.
CADILLAC ESCALADE, ESV, EXT 03-06
CHEVROLET SILVERADO 1500/2500/3500 03-07 (Classic Style)
CHEVROLET SUBURBAN 1500/2500 03-06
CHEVROLET TAHOE 03-06
GMC SIERRA 1500/2500/3500 & DENALI 03-07 (Classic Style)
GMC YUKON & YUKON XL 1500/2500 03-06
HUMMER H2 03-07
EXPRESS/SAVANA VANS 1500/2500/3500 04-07 (w/ opt PRP)
Frequently Asked Questions
Frequently Asked Questions
Do I need to have this BCM programmed by a dealer?
No. We pre-program the module to your vehicle’s specific VIN before shipping. This ensures it works right out of the box, saving you the time and expense of a dealership visit.