Restore Full Electrical Function to Your GM Truck or SUV
Are you dealing with baffling electrical problems in your 2003-2006 Cadillac Escalade ESV, Chevrolet Silverado, or GMC Sierra? Flickering lights, unresponsive power windows, a malfunctioning security system, or an illuminated airbag light are common signs of a failing Body Control Module (BCM). The BCM is the central computer for your vehicle’s body electronics, and when it fails, it can make your vehicle feel unpredictable and unsafe. This OEM-quality GM 15116066 BCM is the definitive solution, arriving pre-programmed to your vehicle’s VIN for a simple, plug-and-play installation.
Common Symptoms of a Failing GM BCM
- ✔ Unresponsive or erratic power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that won’t turn on or off.
- ✔ HVAC system failures, including a blower motor that doesn’t work or is stuck on one speed.
- ✔ An active airbag warning light, often with a B1001 diagnostic trouble code (DTC).
- ✔ Security system issues, including no-start conditions or false alarms.
- ✔ Intermittent or non-functional windshield wipers.
Why Choose Our Programmed 2003-2006 Escalade ESV Body Control Module?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We program the module with your vehicle’s specific VIN and the latest GM software updates before it ships. This critical step ensures all onboard systems communicate correctly, eliminating the need for expensive dealership programming. It’s designed to restore your vehicle’s functions to factory specifications, providing a reliable and long-lasting repair for your Escalade ESV Body Control Module and other compatible GM models.
Installation and Post-Install Considerations
Physical installation is straightforward. The BCM is typically located under the driver’s side dash, near the steering column. Simply disconnect the battery, remove the old module, and plug this one in. While the module is plug-and-play for most functions, some vehicles may require a ‘Setup SDM Primary Key in BCM’ procedure if the airbag light remains on. This syncs the new BCM with the airbag system and must be performed with a professional-grade scan tool. There is no core charge, so you can keep your old part without any hassle.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the main computer for your vehicle’s comfort and convenience features. It controls non-engine related functions like power windows, locks, lights, wipers, the security system, and the HVAC system.
Is this BCM truly plug-and-play?
Yes, because we pre-program it to your vehicle’s VIN, it is ready for installation right out of the box. This allows you to skip a trip to the dealership for programming. In some cases, a post-install procedure like an airbag system sync may be needed with a scan tool.
What if my airbag light is on after installation?
If the airbag light is on, it means the new BCM needs to be synced with the vehicle’s Sensing and Diagnostic Module (SDM). A qualified technician will need to perform the ‘Setup SDM Primary Key in BCM’ procedure with a professional diagnostic tool to resolve this.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep or dispose of your original module without any extra fees or hassle.
How do I know this part will fit my vehicle?
This module, part 15116066, fits a wide range of 2002-2007 GM vehicles, including the Cadillac Escalade, Chevy Avalanche, Silverado, Suburban, Tahoe, GMC Sierra, and Yukon. Please verify the part number or use our fitment tool to confirm compatibility.