Low speed wiper and high speed wiper control

Fig 1: Low Speed Wiper And High Speed Wiper Switches Timing Pattern

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

When the windshield low speed wiper switch on the column switch is turned ON while the ignition switch is in ACC or ON position, the column switch turns the windshield wiper relay ON. Also, the wiper speed switching relay turns OFF (LO), and the windshield wiper operates at low speed.

When the windshield high speed wiper switch is turned ON, the windshield wiper relay turns ON. Also, the wiper speed switching relay turns ON (HI), and the windshield wiper operates at high speed.