Restore Full Functionality to Your Cadillac Escalade
Are you dealing with frustrating electrical problems in your 2003-2006 Cadillac Escalade? When features like power windows, door locks, or the HVAC system start acting erratically, the Body Control Module (BCM) is often the culprit. As the central command center for your vehicle’s body electronics, a failing BCM can cause a wide range of issues that diminish the comfort and security of your luxury SUV. This OEM-quality replacement BCM, part number 15064149, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play installation.
Case Study: The Phantom Power Drain
I once had a 2005 Escalade in my bay with a classic ‘phantom drain’ that killed the battery overnight. The owner had already replaced the battery and alternator. After hooking up an ammeter, I started pulling fuses and traced the draw to the BCM circuit. The module wasn’t allowing the vehicle’s accessory systems to fully go to sleep. Swapping in a VIN-programmed BCM like this one not only solved the battery drain but also fixed an intermittent power lock issue the owner had forgotten to mention. It’s a perfect example of how a single faulty 2003-2006 Escalade BCM can create multiple, seemingly unrelated problems.
Is Your Escalade Exhibiting These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Intermittent or non-functional power windows, door locks, or interior lights.
- ✔ HVAC system failures, such as the blower motor not working or temperature controls being unresponsive.
- ✔ The security light is on, or the vehicle experiences a random no-start condition.
- ✔ An airbag warning light is illuminated, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- ✔ Erratic wiper operation or other strange electrical behavior.
- ✔ Communication errors with other modules on the vehicle’s data network.
A Straightforward Guide to Installation
One of the best features of this module is its simple, DIY-friendly installation. No trip to the dealer is required. You can get your Escalade back to normal in under 15 minutes.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the BCM: On the 2003-2006 Escalade, the BCM is located under the driver’s side of the dashboard, typically to the left of the steering column.
- Remove the Old Module: Carefully disconnect the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unclip or unbolt the old module from its mounting bracket.
- Install the New Module: Seat the new, pre-programmed BCM into the mounting bracket and securely reconnect all electrical connectors. You’ll hear a ‘click’ when they are properly seated.
- Reconnect and Test: Reconnect the battery terminal. Start the vehicle and test all body functions—lights, locks, windows, wipers, and HVAC—to confirm the repair was successful.
Verified Vehicle Compatibility
This module is a direct replacement for part number 15064149 and other interchangeable numbers. While it is a perfect solution for the 2003-2006 Escalade BCM, it also fits a wide range of other GM trucks and SUVs. Always verify your part number or consult your mechanic to ensure proper fitment.
ESCALADE ESV 03-06 Body Control (BCM); (under steering column)
ESCALADE EXT 03-06 Body Control (BCM); (under steering column)
AVALANCHE 1500/2500 03-06 Body Control (BCM); (under steering column)
CHEVROLET SILVERADO 1500/2500/3500 03-06 Crew Cab (under steering column)
GMC SIERRA 1500/2500/3500 03-06 Crew Cab (under steering column)
SUBURBAN 1500/2500 03-06 Body Control (BCM); (under steering column)
TAHOE 03-06 Body Control (BCM); (under steering column)
YUKON & YUKON XL 1500/2500 03-06 Body Control (BCM); (under steering column)
HUMMER H2 03-07 Body Control (BCM); (LH dash)
Frequently Asked Questions
Frequently Asked Questions
What exactly does this Body Control Module do?
The BCM is a computer that manages and controls the electronic accessories in your vehicle’s body. This includes lighting, power windows, security systems, door locks, wipers, and the climate control system. When it fails, these systems can stop working correctly.
How do I provide my VIN for programming?
After placing your order, you will be prompted to enter your vehicle’s 17-digit VIN. We use this to program the module with the latest GM software, ensuring it works perfectly with your Escalade’s specific options.
Is this part truly plug-and-play?
Yes. Because we program it to your VIN before shipping, you will not need to take it to a dealership for additional programming. Installation is as simple as swapping the part. In some rare cases, an airbag light may require a reset with a pro-level scan tool.
What if my airbag light is on after installation?
If the airbag light appears, it means the new BCM needs to be synced with the airbag’s Sensing and Diagnostic Module (SDM). This is a simple “Setup SDM Primary Key in BCM” procedure that can be performed by a technician with an advanced diagnostic tool.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep or dispose of your old module without any hassle.
What is the warranty on this part?
This BCM comes with a one-year warranty, giving you peace of mind and confidence in your repair.