Restore Full Functionality to Your Cadillac
Are you dealing with baffling electrical issues in your 2003-2006 Cadillac Escalade ESV? Flickering lights, an unresponsive climate control system, or power windows with a mind of their own are classic signs of 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 unpredictable problems. This replacement BCM, equivalent to GM part number 15194170, is the reliable, long-term solution you need to get your luxury SUV back in top condition.
A Technician’s Notebook: The Escalade with a Ghost
I remember a 2005 Escalade ESV that came into my bay with a list of complaints that seemed unrelated. The owner said the A/C would randomly shut off, the security light would flash, and sometimes the power door locks wouldn’t work. He’d already replaced the battery and checked fuses. After hooking up my scanner, I found a series of communication codes pointing to the BCM. These modules are notorious for internal solder joint failures over time, leading to intermittent connections. Installing a VIN-programmed 2003-2006 Escalade ESV BCM resolved every single issue in under 10 minutes. It’s a common failure, but thankfully, a straightforward fix.
Is Your Escalade Showing These Symptoms?
- ✔️ Unpredictable HVAC or blower motor operation.
- ✔️ Power windows, door locks, or interior lights not working correctly.
- ✔️ An active airbag warning light, often with a DTC like B1001 (Option Configuration Error).
- ✔️ The security system acting up, preventing the vehicle from starting.
- ✔️ Strange electrical behavior that comes and goes without a clear cause.
- ✔️ A cluster of communication or body-related Diagnostic Trouble Codes (DTCs).
A Straightforward Guide to Installation
One of the best features of this module is its simple, DIY-friendly installation. Because we program it to your vehicle’s VIN before shipping, you can skip the expensive trip to the dealership for programming. The entire process takes just a few minutes.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and help reset the system.
- Locate the BCM: On your Escalade ESV, the BCM is typically found under the driver’s side of the dashboard, near the steering column.
- Swap the Module: Carefully unplug the electrical connectors from the old BCM. Remove any mounting screws or clips, take out the old module, and put the new one in its place.
- Reconnect Everything: Secure the new BCM, plug in the electrical connectors until they click, and then reconnect your battery terminal.
- Final Check: Start your vehicle and test all functions—lights, windows, locks, and HVAC—to confirm the repair. In some cases, a post-install procedure may be needed (see our FAQ).
Guaranteed Fitment for Your GM Vehicle
This BCM is a direct replacement for part number 15194170 and is interchangeable with many other GM part numbers. It is guaranteed to fit the following models:
ESCALADE & ESCALADE ESV & ESCALADE EXT: 2003-2006
Chevrolet:
AVALANCHE 1500/2500: 2003-2006
SILVERADO & SIERRA (1500/2500/3500, including Denali): 2003-2006, and 2007 ‘Classic’ Crew Cab models
SUBURBAN & YUKON XL (1500/2500): 2003-2006
TAHOE & YUKON: 2003-2006
EXPRESS & SAVANA VAN (with opt PRP): 2004-2007
Hummer:
H2: 2003-2007
Frequently Asked Questions
What does ‘VIN Programmed’ actually mean for me?
It means we load your vehicle’s specific Vehicle Identification Number (VIN) and its factory-correct software onto the module before we ship it. This ensures it communicates perfectly with your Escalade’s other computers right out of the box, eliminating the need for dealership programming, which can save you hundreds of dollars.
Will this fix my airbag light?
If the airbag light is on due to a BCM communication error (like DTC B1001), this module will likely resolve it. However, after installation, if the light remains, a technician may need to perform a quick ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool to sync the airbag system to the new BCM.
Is this a difficult part to install myself?
Not at all. For most DIYers with basic tools, this is a very simple job. The BCM is usually held in by a few clips or screws and is easily accessible under the dash. The entire swap typically takes less than 15 minutes.
Do I have to return my old BCM (core charge)?
No, there is absolutely no core charge. You can keep your old part, so there’s no need to worry about return shipping or waiting for a core refund.
What if my brake lights don’t work correctly after installation?
On some GM models, a Brake Pedal Position (BPP) sensor relearn procedure may be necessary after replacing the BCM. This is a simple recalibration that can be done with a compatible bi-directional scan tool to ensure proper brake light and traction control function.