Pulse System
WARNING: This page is about a different car, the 1988 Pontiac Grand Prix, 1988 Oldsmobile Cutlass Supreme, and 1988 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
The motor operation is controlled by the dash switch consisting of a combination of switches and a variable resistor. The parking and pulse relays are used for motor operation.
A timing circuit consisting of a capacitor, variable resistor and integrated circuit board are used to control the time that the pulse wiper operation exists. The washer system requires the use of 3 relays and a integrated circuit board containing resistors and capacitors for the operation of the piston type water pump.