Restore Full Control Over Your Truck’s Electronics
Are you battling frustrating electrical issues in your GMC Sierra or Chevrolet Silverado? One day the power windows work, the next they don’t. Maybe your HVAC controls have a mind of their own, or a persistent airbag light refuses to go away. These aren’t separate problems; they’re classic signs of a failing Body Control Module (BCM). This module is the central command for your truck’s body electronics, and when it fails, it can create a cascade of seemingly unrelated issues. This replacement BCM, part number 15198116, is the definitive solution for your 2003-2007 Sierra 3500 BCM and a wide range of other GM trucks and SUVs.
We make this repair simple with our professional cloning service. Simply send us your original BCM, and we will transfer all the critical vehicle-specific data to this replacement unit. This means no expensive trips to the dealership for programming. The module arrives at your door ready for a true plug-and-play installation, restoring functionality and getting your truck back to 100%.
A Technician’s Notebook: The BCM Ghost Hunt
I’ve seen it a hundred times in the shop: a 2005 Silverado 2500 comes in with the weirdest collection of symptoms. The owner says the radio sometimes cuts out, the driver’s side door lock is dead, and the A/C blower motor only works on high. They’ve already replaced the blower motor resistor and a door lock actuator with no luck. After a quick scan, I see a handful of communication codes (U-codes) and a BCM-specific code like B1001. This is the classic signature of an internal BCM failure. The module’s internal logic and circuits start to break down, causing these ‘ghost’ problems. A cloned BCM like this one is the fastest, most reliable fix, solving all those issues at once without disturbing the vehicle’s security or options programming.
Is Your Truck Showing These Symptoms?
A faulty BCM can manifest in many ways. If you’re experiencing any of the following, it’s a strong indicator that your module needs replacement:
- ✔ Intermittent or non-functional power windows, door locks, or interior lights.
- ✔ HVAC system problems, such as an unresponsive blower motor or erratic temperature control.
- ✔ An illuminated airbag warning light, often accompanied by diagnostic trouble code (DTC) B1001.
- ✔ Security system malfunctions, including the vehicle failing to start or the security light staying on.
- ✔ Erratic windshield wiper operation or failure of the washer pump.
- ✔ Communication errors with other modules, leading to a variety of DTCs.
A Straightforward Guide to Your BCM Installation
Getting your truck’s electronics back in order is easier than you think. This process typically takes less than 10 minutes.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most GM trucks like the Sierra and Silverado, the BCM is located under the driver’s side dashboard, near the steering column. It’s a black plastic box with several large multi-pin connectors.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be pressed to release. Once unplugged, the module can be unclipped or unbolted from its bracket.
- Install the New Module: Seat the replacement BCM into the mounting bracket and firmly reconnect all electrical connectors until they click into place.
- Reconnect and Test: Reconnect the battery terminal. Start your vehicle and test all functions: windows, locks, lights, wipers, and HVAC to confirm the repair was successful.
Post-Installation Procedures & Notes
Our cloning service makes this a seamless swap, but in some cases, additional steps may be needed. If the airbag light is on after installation, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure. Additionally, some models may require a ‘Brake Pedal Position Relearn’. Please be aware that your original module will be returned to you with the cloned replacement; we do not keep cores.
Guaranteed Fitment for Your GM Vehicle
This module is a direct replacement for part number 15198116 and is interchangeable with several other part numbers, including 15116066, 10383536, 15136225, 15137393, and more. It provides a reliable fix for the following vehicles:
- Chevrolet Avalanche 1500/2500 (2002-2006)
- Chevrolet Silverado 1500/2500/3500 Pickup (2003-2007 Classic)
- Chevrolet Suburban 1500/2500 (2003-2006)
- Chevrolet Tahoe (2003-2006)
- Chevrolet Express & GMC Savana Van 1500/2500/3500 (2004-2007, w/ tradesman package)
- GMC Sierra 1500/2500/3500 Pickup & Denali (2003-2007 Classic)
- GMC Yukon & Yukon XL 1500/2500 (2003-2006)
- Cadillac Escalade, ESV, EXT (2003-2006)
- Hummer H2 (2003-2007)
Don’t let electrical gremlins sideline your truck. This cloned 2003-2007 Sierra 3500 BCM is your ticket to a fast, reliable, and dealership-free repair. Order today and take back control.
Frequently Asked Questions
What is a ‘cloning service’?
Cloning is a process where we transfer the exact VIN-specific programming and software from your original, faulty BCM to this replacement unit. This ensures 100% compatibility with your vehicle’s existing systems and options, making the installation truly plug-and-play without needing a dealer.
Do I need to send my original BCM to you?
Yes. For the cloning service to work, you must ship your original module to us. We perform the data transfer and then ship both your original module and the ready-to-install replacement back to you.
Is there a core charge for this part?
No, there is no core charge. We always return your original module, so you don’t have to worry about extra fees or core returns.
Will this fix my airbag light?
If the airbag light is caused by a faulty BCM (like with code B1001), this module will resolve the root cause. However, after installation, the system may require an ‘SDM Primary Key Setup’ with a professional scan tool to sync the modules and turn off the light.
What tools do I need for installation?
In most cases, you will only need basic hand tools, such as a socket or screwdriver, to access the module under the dash. No special electronic tools are required for the physical installation.
How long does the cloning process take?
Once we receive your module, the cloning service is typically completed within 1-2 business days before it is shipped back to you.