Section 29 (Wiper System & Washer System): Wipers/Washers: Operation: Notes

The wiper and washer system is designed to provide the vehicle operator with a convenient, safe, and reliable means of maintaining visibility through the windshield glass. The various components of this system are designed to convert electrical energy produced by the vehicle electrical system into the mechanical action of the wiper blades to wipe the outside surface of the glass, as well as into the hydraulic action of the washer system to apply washer fluid stored in an on-board reservoir to the area of the glass to be wiped. When combined, these components provide the means to effectively maintain clear visibility for the vehicle operator by removing excess accumulations of rain, snow, bugs, mud, or other minor debris from the outside windshield glass surface that might be encountered while driving the vehicle under numerous types of inclement operating conditions.

Two wiper systems are available: the standard intermittent wipe system, or an optional automatic wipe system. The vehicle operator initiates all wiper and washer system functions with the multi-function switch wiper control stalk that extends from the right side of the steering column, just below the steering wheel. Depressing, raising, or pulling the right control stalk of the multi-function switch selects the desired wiper system operating mode. See Fig 1. The wiper system allows the vehicle operator to select from two continuous wiper speeds, Hi or Lo, either a fixed interval intermittent wipe mode or an auto wipe mode (as the vehicle is equipped), and a pulse wipe mode. Pushing the knob on the end of the control stalk towards the steering column activates the washer pump/motor, which dispenses washer fluid onto the windshield glass through the washer nozzles.

Fig 1: Windshield Wiper/Washer Switch

Courtesy of DAIMLERCHRYSLER CORP.

The hard wired inputs to and outputs from the wiper and washer system components may be diagnosed and tested using conventional diagnostic tools and methods. Refer to the appropriate diagnostic information. Refer to the owner's manual in the vehicle glove box for more information on the features and operation of the wiper and washer system.