Is your Cadillac Escalade EXT plagued by baffling electrical problems? When your power windows, door locks, interior lights, or HVAC system start acting erratically, the culprit is often a failing Body Control Module (BCM). The BCM is the central command center for your truck’s body electronics, and its failure can lead to a host of frustrating issues. This OEM-quality replacement BCM, part number 15136225, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play installation.
Common Symptoms of a Failing BCM
- ✔ Unresponsive or malfunctioning power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that won’t turn on or off, or flicker intermittently.
- ✔ HVAC controls not working, or the blower motor operating unpredictably.
- ✔ An active security light on the dash, potentially causing the engine not to start.
- ✔ The airbag warning light is illuminated, often with diagnostic trouble code (DTC) B1001.
- ✔ A variety of communication errors or body-related DTCs stored in the vehicle’s memory.
Your Direct-Fit 2003-2006 Escalade EXT BCM Solution
This module is engineered to meet or exceed original equipment specifications, ensuring reliable performance and longevity. By ordering from us, you bypass the expensive and time-consuming trip to the dealership for programming. We handle the crucial VIN programming before we ship, so the module is ready for immediate installation upon arrival. This not only saves you money but gets your luxury truck back to perfect working order faster.
Key Features & Benefits
- ✔ VIN Programmed: Arrives ready to install with the latest GM software updates for your specific vehicle. No dealer visit required.
- ✔ Restores Full Functionality: Corrects common electrical faults and restores control over your vehicle’s comfort and convenience features.
- ✔ OEM-Quality Build: Constructed to the highest standards for durability and reliable, long-term performance.
- ✔ No Core Charge: Keep your old part. There is no need to worry about core returns or additional charges.
- ✔ Broad Compatibility: Interchangeable with part numbers 15116066, 10383536, 15136877, 15198116, and more, ensuring a perfect fit for a wide range of GM trucks and SUVs.
Installation & Post-Install Notes
Installation is straightforward. The BCM is typically located under the driver’s side dashboard, near the steering column. Disconnect the vehicle’s battery, unplug the electrical connectors from the old module, remove it, and install the new one in its place. Reconnect the battery. In some cases, post-installation procedures may be necessary:
- Airbag System Sync: If the airbag light remains on after installation, a technician will need to perform the ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool.
- Brake Pedal Position Relearn: Certain models may require this relearn procedure to ensure proper brake light and stability control operation.
Always consult a factory service manual or a qualified technician if you are unsure about any step of the installation process.
Frequently Asked Questions
What does the BCM do on a 2003-2006 Escalade EXT?
The Body Control Module (BCM) acts as the central computer for your truck’s non-engine related electronics. It controls features like power windows, locks, interior/exterior lighting, the security system, wipers, and the HVAC climate control system.
Is this BCM ready to install out of the box?
Yes. We program the module to your vehicle’s VIN before shipping. This ensures it communicates correctly with your truck’s other systems for a true plug-and-play installation, with no dealership programming needed.
What if my airbag light is on after installing the new BCM?
This can happen. It means the new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). A technician can perform a quick ‘Setup SDM Primary Key in BCM’ procedure with a capable scan tool to resolve this.
Do I need to send my old part back?
No. This part is sold with no core charge, so you are not required to return your original module.
Where is the BCM located on a 2005 Escalade EXT?
The BCM is located inside the cabin, under the driver’s side of the dashboard, typically attached to a bracket near the steering column.