Driver's Window

Voltage is supplied at all times to the power window master switch through fuse 3 (in the under-dash fuse/relay box). When you push the power window master switch to UP, voltage is applied to the driver's power window motor. (The motor's ground path is back through the power window master switch.) The driver's power window motor then drives the window up. When you push the switch to DOWN, voltage is applied in the opposite direction, and the motor drives the window down.