End the Electrical Headaches in Your Hummer H2
If you’re battling bizarre electrical issues in your 2003-2007 Hummer H2—like flickering lights, a dead instrument cluster, or power windows with a mind of their own—you’ve likely met the culprit: a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and hard-to-diagnose problems. This replacement module, part number 15194170, is the definitive solution to restore order and reliability to your vehicle.
We make this repair simple with our professional Cloning Service. Instead of sending you a generic module that requires expensive dealership programming, we transfer the critical data from your original BCM directly to this replacement unit. This means the new module arrives at your door ready for a true plug-and-play installation, perfectly matched to your H2’s specific configuration.
A Technician’s Notebook: The Ghost in the Machine
I remember a 2006 Hummer H2 that came into my bay with a laundry list of intermittent electrical complaints. The radio would cut out, the HVAC blower was erratic, and the security light would flash, sometimes causing a no-start condition. The owner had already replaced the battery and checked the main grounds. After hooking up the scanner, I saw multiple communication loss codes with the BCM. These GMT800-platform vehicles are tough, but their BCMs are a known failure point after years of heat cycles and vibration. Swapping in a cloned BCM solved every single issue in under 10 minutes. It’s a classic fix I’ve performed hundreds of times.
Is Your H2 Exhibiting These Electrical Faults?
A failing BCM doesn’t always trigger a check engine light, often leaving owners and even some technicians guessing. Here are the most common signs that your 2003-2007 Hummer H2 BCM is failing:
- ✔ Unresponsive or erratic power windows, door locks, and interior/exterior lights.
- ✔ HVAC system failures, such as the blower motor not working or temperature controls being inoperative.
- ✔ The security system acting up, leading to random alarm activation or a no-start condition.
- ✔ An illuminated airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001 (Option Configuration Error).
- ✔ Strange instrument cluster behavior or complete power loss to the dash.
- ✔ Communication errors with other modules on the vehicle’s data network.
Your 5-Minute Installation Guide
Getting your Hummer H2 back to normal is a straightforward job that most DIYers can handle with basic tools. Our cloning service eliminates the need for programming, making the physical swap all that’s required.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and help reset the system.
- Locate the BCM: On the 2003-2007 Hummer H2, the Body Control Module is located on the left-hand (driver’s) side of the dashboard, typically under the steering column area.
- Swap the Module: Carefully unplug the electrical connectors from your old BCM. The connectors are color-coded and uniquely shaped, so you can’t mix them up. Remove the old module and secure the new, cloned module in its place.
- Reconnect and Test: Re-attach all electrical connectors to the new BCM, ensuring they click securely into place. Reconnect the negative battery terminal.
- Final System Checks: Start your H2 and verify that all functions (lights, locks, windows, HVAC, etc.) are working correctly. In some cases, a post-install procedure may be necessary (see our FAQ below).
Verified Fitment for Your GM Vehicle
This Body Control Module is a direct replacement for part number 15194170 and is interchangeable with a wide range of other GM part numbers. It is guaranteed to fit the following models:
- HUMMER H2: 2003, 2004, 2005, 2006, 2007
- Cadillac Escalade, ESV, EXT: 2003-2006
- Chevrolet Avalanche, Silverado, Suburban, Tahoe: 2003-2007 (classic body style)
- GMC Sierra, Yukon, Yukon XL: 2003-2007 (classic body style)
- Chevrolet Express & GMC Savana Vans: 2004-2007 (with specific options)
This module is also a direct replacement for part numbers: 10383536, 15116066, 15136225, 15136877, 15198116, 15257043, and more.
Frequently Asked Questions
How does the BCM Cloning Service work?
You send us your original, faulty BCM. Our technicians extract the unique vehicle data (VIN, mileage, security keys, and options) and flash it onto your new replacement module. This makes it a perfect electronic match for your vehicle, eliminating any need for dealership programming.
Will I need to go to the dealer for programming?
Absolutely not. The cloning service handles all programming before the part is shipped to you. The module you receive will be 100% plug-and-play.
Why is my airbag light on after installation?
This can happen occasionally. It means the new BCM needs to be electronically introduced to the airbag’s computer (SDM). A mechanic with a professional scan tool will need to perform the “Setup SDM Primary Key in BCM” procedure to sync the systems and clear the light.
What happens to my old BCM?
We always return your original module to you along with the newly cloned replacement. There is no core charge or need to send it back to us after the repair.
Will this fix my brake light or traction control issue?
In some cases, a Brake Pedal Position Sensor relearn procedure may be required after BCM replacement to ensure these systems function correctly. This can also be done with a bi-directional scan tool.