Windshield Wash

The windshield wash function is activated by pulling the combination switch, washer switch (S4s4) towards the steering column. The switch contact connects the washer pump (M5/1) to terminal 15R. The All Activity Module (AAM) (N10) detects switch activation via an input that measures power supply to the washer pump (M5/1).

If the combination switch (S4) is in the Wiper Off or Intermittent position, the AAM activates the wiper motor (M5/1) via relay F1k17. To wipe windshield dry, the motor continues to operate after the switch has been released until the AAM detects three operations of the cam-operated switch.