Window Motors

Each door module has supplied battery voltage and ground, through window motor drive circuits, to appropriate window motor. Window motors are reversible. Direction window moves depends on which motor drive circuit battery voltage is applied to, and motor drive circuit ground is applied to. To move window in up direction, appropriate door module applies battery voltage to window motor up drive circuit, and ground to window motor down drive circuit. When a window movement in opposite direction is needed, appropriate door module reverses polarity, and supplies power and ground to opposite circuits to move window in reverse direction.