Windshield Wiper System Description
The windshield wiper system consists of a wiper motor, a linkage, a wiper arm, a blade and a wiper/washer switch. The windshield wiper circuit incorporates a self-parking device which consists of a worm gear and a cam plate in order to keep the circuit engaged temporarily when the switch is turned OFF. The wiper system is driven by a permanent magnet-type motor. The windshield wiper motor is mounted on the dash panel and is directly connected to the windshield wiper linkage.
The windshield wiper motor has 2 speeds, LO and HI, and also has intermittent wiper capability. The wiper switch is an integral part of the wiper/washer switch. Windshield wiper operation is actuated through the lever on the right side of the steering column.
Windshield Washer System Description
The windshield washer system is equipped with a washer fluid reservoir, a washer fluid pump, hoses, nozzles and a wiper/washer switch. The windshield washer reservoir is mounted behind the front right wheel well splash shield. Attached to the reservoir is a washer pump, which pumps fluid through the hoses to the 2 nozzles mounted on the hood. The washer switch is an integral part of the wiper/washer switch. Windshield washer operation is actuated through the lever on the right side of the steering column.
Scheme 1
Test Description
The numbers below refer to the step numbers on the diagnostic table.
- 2. Tests the inactive state of the washer switch.
- 3. Tests the active state of the washer switch.
- 8. After replacement of the ISU, the ISU must be reprogrammed.