that is dedicated to providing all of the driver controls for the front wiper and washer systems. (Refer to 8 -
ELECTRICAL/LAMPS/LIGHTING - EXTERIOR/MULTI-FUNCTION SWITCH - DESCRIPTION).
•
Washer Fluid Level Switch - The washer fluid level switch is located in a dedicated hole on the lower, rear-
ward facing surface of the washer reservoir, ahead of the left front wheel house splash shield.
•
Washer Pump/Motor - The reversible electric washer pump/motor unit is located in a dedicated hole on the
lower, rearward facing surface of the washer reservoir, ahead of the left front wheel house splash shield. This
single reversible washer pump/motor provides washer fluid to either the front or rear washer system plumbing,
depending upon the direction of the pump motor rotation.
•
Washer Reservoir (1) - The washer reservoir is combined with the engine coolant reserve bottle located on
the radiator support to the left of the air conditioning condenser in the engine compartment. This combined
reservoir has separate, clearly identified washer fluid and engine coolant filler caps that are accessed from the
left front corner of the engine compartment.
•
Wiper High/Low Relay - The wiper high/low relay is an International Standards Organization (ISO) micro relay
located in the Power Distribution Center (PDC) in the engine compartment near the battery.
•
Wiper On/Off Relay - The wiper on/off relay is an International Standards Organization (ISO) micro relay
located in the Power Distribution Center (PDC) in the engine compartment near the battery.
Hard wired circuitry connects the front wiper and washer system components to the electrical system of the vehicle.
These hard wired circuits are integral to several wire harnesses, which are routed throughout the vehicle and
retained by many different methods. These circuits may be connected to each other, to the vehicle electrical system
and to the front wiper and washer system components through the use of a combination of soldered splices, splice
block connectors, and many different types of wire harness terminal connectors and insulators. Refer to the appro-
priate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair proce-
dures, further details on wire harness routing and retention, as well as pin-out and location views for the various
wire harness connectors, splices and grounds.
OPERATION
The front wiper and washer system is designed to pro-
vide the vehicle operator with a convenient, safe, and
reliable means of maintaining visibility through the
windshield glass. The various components of this sys-
tem are designed to convert electrical energy pro-
duced by the vehicle electrical system into the
mechanical action of the wiper blades to wipe the out-
side 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 compo-
nents 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.
The vehicle operator initiates all front wiper and washer system functions with the control knob (1) on the end of the
control stalk (2) of the multi-function switch that extends from the left side of the steering column, just below the
steering wheel. Rotating the control knob on the end of the control stalk, selects the Off, Delay, Low, or High wiper
system operating modes. In the Delay mode, the control knob also allows the vehicle operator to select from one of
five intermittent wipe Delay intervals. Depressing the control knob towards the steering column actuates the momen-
tary washer system switch, which selects the Wash, and Wipe-After-Wash Modes depending upon when and how
long the switch is held closed. The multi-function switch provides hard wired resistor multiplexed inputs to the instru-
ment cluster for all of the wiper and washer system functions. The instrument cluster then sends electronic mes-
HB
FRONT WIPERS/WASHERS - SERVICE INFORMATION
8R - 35