Rear Window Defogger Fan: Operation

Fan operation is controlled by a multiple position switch. Switch may be turned to any of its speed positions and air will be drawn through fan and onto rear window. As switch is moved from high to lower speed positions, resistance is added to motor feed lead, thereby lowering fan speed.

Fig 1: Rear Window Defogger Wiring Diagram (Resistor-in-Switch Circuit - Typical)

Courtesy of NOT AVAILABLE

Fig 2: Rear Window Defogger Wiring Diagram (Resistor-in-Line Circuit - Typical)

Courtesy of NOT AVAILABLE