The following schematic illustrates the FIAT 500 Windshield Wiper Wiring Diagram.
A Series winding
B Shunt winding
S Additional winding
FIAT 500 (1957 – 1973) windscreen wiper assembly comprises a motor unit that drives two wiper blades through a reduction gearing and mechanical linkage. The reduction gear includes a worm screw on the motor armature shaft and a helical pinion. The motor, left blade pivot and linkages are mounted on a sheet metal bracket, whilst the right blade pivot is connected to the main drive link. When assembled to the vehicle the right blade pivot is fixed directly onto the body. The unit is provided with an automatic parking device which ensures that the blades return to their correct park position. The windscreen wiper is- controlled by a lever switch with three separate positions on earlier models or a simple on-off switch on later models.