Restore Full Electrical Function to Your Cadillac
Are you chasing down frustrating electrical gremlins in your 2003-2006 Cadillac Escalade EXT? When features like your power windows, door locks, interior lights, or even the HVAC system start acting erratically, the Body Control Module (BCM) is often the culprit. This isn’t just an inconvenience; it can affect your vehicle’s security and safety. We offer a definitive solution with our 2003-2006 Escalade EXT BCM, complete with a professional cloning service that makes replacement easier and more reliable than ever.
Instead of just programming a replacement with your VIN, our expert cloning service transfers the exact data from your original, failing module directly onto this replacement unit. This means all your vehicle’s specific settings and security data are perfectly preserved. The result is a true plug-and-play fix that eliminates the need for a costly trip to the dealership for further programming.
Case Study: The Phantom Battery Drain
A customer brought in a 2005 Escalade EXT with a battery that would die overnight. They had already replaced the battery and alternator, but the problem persisted. After connecting a multimeter to measure parasitic draw, we started pulling fuses. The draw dropped significantly when we pulled the BCM fuse. The internal circuitry of the original BCM had failed, preventing it from ‘sleeping’ properly when the truck was off. Our cloned BCM not only restored all body functions but permanently solved the mysterious battery drain, saving the customer from further diagnostic headaches and replacement parts.
Is Your Escalade EXT Showing These Electrical Faults?
- ✔ The security system acts up, causing a no-start condition or random alarm triggers.
- ✔ Power windows, door locks, or mirrors work intermittently or not at all.
- ✔ The HVAC blower motor or climate controls are unresponsive.
- ✔ Interior or exterior lights flicker, stay on, or won’t turn on.
- ✔ You have an airbag warning light on the dash, sometimes with a B1001 diagnostic trouble code.
- ✔ The instrument cluster displays erratic warnings or loses communication.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting work.
- ✔ Locate the BCM: On the 2003-2006 Escalade EXT, the BCM is located under the driver’s side of the dashboard, near the steering column.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old module. They have locking tabs that need to be depressed. Once disconnected, remove the module from its mounting bracket.
- ✔ Install the New Module: Seat the replacement BCM into the bracket and firmly reconnect all electrical connectors until they click into place.
- ✔ Power Up: Reconnect the negative battery terminal. Start the vehicle and test all body functions (lights, locks, windows, etc.) to confirm the repair.
- ✔ Post-Install Checks: In some cases, an airbag light may require a ‘Setup SDM Primary Key’ procedure with a scan tool. A brake pedal position relearn might also be necessary. Consult your service manual for specifics.
Verified Fitment for Your Vehicle
This Body Control Module is a direct-fit replacement for the following vehicles. It is interchangeable with part numbers 15116066, 15136225, 10367690, 15064149, and others.
- Cadillac Escalade EXT: 2003, 2004, 2005, 2006 (Body Control Module located under steering column)
- Cadillac Escalade & ESV: 2003-2006
- Chevrolet Avalanche 1500/2500: 2003-2006
- Chevrolet Silverado & GMC Sierra Trucks (Crew Cab): 2003-2007 Classic
- Chevrolet Suburban, Tahoe & GMC Yukon/Yukon XL: 2003-2006
- Hummer H2: 2003-2007
Frequently Asked Questions
What exactly is a BCM cloning service?
Our cloning service is a process where we transfer the complete software and vehicle-specific data—including security information and options—from your original BCM to the replacement unit. This ensures the new module is an exact digital copy of the old one, guaranteeing seamless compatibility without extra programming.
Why is cloning better than standard VIN programming for my Escalade?
While VIN programming provides the base file for your vehicle, cloning transfers everything. This includes learned parameters and security handshakes with other modules in your truck. It’s the most reliable way to ensure all systems communicate correctly right after installation, avoiding potential conflicts.
Do I need to take my truck to a dealer after installation?
No. The primary benefit of our cloning service is to avoid dealer intervention. The module arrives ready to install and operate, saving you time and money on programming fees.
What if my airbag light is still on after installing the BCM?
If the airbag light remains on, it means the BCM and the Sensing and Diagnostic Module (SDM) need to be electronically re-synced. This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be performed by a technician with a professional-grade diagnostic tool.
Where is the BCM located on my 2004 Escalade EXT?
The Body Control Module is mounted on a bracket under the driver’s side dashboard, typically to the left of the steering column. It’s accessible after removing the lower dash panel.
What is your policy on the old module (core)?
We require your original module to perform the cloning service. After the service is complete, we always return your original module to you along with the newly cloned replacement unit. We do not keep it.