In order to scan the body control module, you will need an advanced scan too that can access the module and give you live readings on everything it controls.
The cost for a good scan tool is about $1,500.00to $3,000.00 for one that has the capability.
I attached the location for you below of the module.
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.