The longer blade is installed on the left (driver) side
of the windshield.
• Wiper Linkage - The wiper pivots are the only
visible components of the wiper linkage. The remain-
der of the linkage is concealed within the engine
compartment just behind the hood opening. The
wiper linkage module includes the two wiper drive
links, the wiper motor crank arm, the two wiper piv-
ots, and the linkage and motor mounting bracket.
• Wiper Motor - The wiper motor is secured to
the wiper linkage module bracket on the underside of
the cowl panel within the engine compartment. The
wiper motor output shaft and crank arm extend
through a clearance hole in the mounting bracket,
where they are connected to a crank arm that drives
the wiper linkage.
• Wiper Relay - The wiper relay is located in a
dedicated receptacle on the lower left surface of the
fuse block underneath the steering column behind
the fuse access panel and the steering column open-
ing panel.
• Wiper, Turn Signals, Engine Start Control
Module - The wiper, turn signals and engine start
control module is integral to the fuse block located
underneath the steering column. The fuse block is
concealed behind the fuse access panel and the steer-
ing column opening panel, where it is secured with
screws to the steering column. The wiper, turn sig-
nals and engine start control module contains the
intermittent wipe logic circuitry, which includes
active electronic elements that allow it to provide the
intermittent wipe delay and the wipe-after-wash fea-
tures of the intermittent wipe system based upon
numerous hard wired inputs, then provides the
proper programmed hard wired control output to
operate the wiper motor through the wiper relay.
Hard wired circuitry connects the 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 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 appropriate wiring infor-
mation. The wiring information includes wiring dia-
grams, proper wire and connector repair procedures,
further details on wire harness routing and reten-
tion, as well as pin-out and location views for the
various wire harness connectors, splices and grounds.
OPERATING MODES
The components of the wiper and washer system
are designed to provide the following operating
modes:
• Continuous Wipe Mode - The two-speed wiper
motor, the internal circuitry of the multi-function
switch, and the wiper relay work in concert to pro-
vide two continuous wipe cycles, low speed or high
speed.
• Intermittent Wipe Mode - The internal cir-
cuitry of the multi-function switch, the intermittent
wipe circuitry of the wiper, turn signals and engine
start control module in the fuse block, and the wiper
relay work in concert to provide an intermittent wipe
mode with a single, fixed delay interval.
• Pulse Wipe Mode - The internal circuitry of
the multi-function switch and the wiper relay work
in concert to provide a pulse wipe mode that will
allow the wiper motor to be operated for a single,
complete wipe cycle.
• Washer Mode - When the washer system is
activated with the multi-function switch while the
wiper system is operating, washer fluid will be dis-
pensed onto the windshield glass through the washer
nozzles for as long as the washer pump/motor is
energized.
• Wipe-After-Wash Mode - The intermittent
wipe circuitry of the wiper, turn signals and engine
start control module in the fuse block, and the wiper
relay provide a wipe-after-wash feature. If the wipers
are turned Off, this feature will operate the washer
pump/motor and the wipers for as long as the washer
system is activated, then provide several additional
wipe cycles after the washer system is deactivated
before parking the wiper blades near the base of the
windshield.
OPERATION
The 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
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 main-
tain clear visibility for the vehicle operator by remov-
ing 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.
VA WIPERS/WASHERS 8R - 3
WIPERS/WASHERS (Continued)
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