Rear Door Window Control Switch
WARNING: This page is about a different car, the 2018 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
The rear window control switches receive voltage (high current circuit) from the delayed accessory relay whenever it is active. The rear window control switches receive voltage (low current circuit) from the master window control switch when the lock-out switch is in the UNLOCK position. The rear window control switches each have a dedicated ground circuit. The rear window control switches contain 2 relays, which when at rest (inactive), provide a ground path to their respective power window motor circuit(s).
When a rear window control switch is activated, the corresponding relay located within the rear window control switch is energized which supplies voltage (high current) to operate the power window motor in the desired direction.