2000 Cadillac Escalade relay switch

It's in the center console but you can't replace it. These are all vin specific and have to be programmed to your vehicle.

By the way the wipers don't run off of the body control module. They have their own check your circuit board in wipers that may be your problem. If you unhooked your battery the radio may need to have it's code put back in try your last 4 digits of vin number