Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Dodge Durango 1998-2000 Approved Dodge Durango 1998-99 98DN_8K
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DN WIPER AND WASHER SYSTEMS 8K - 1
WIPER AND WASHER SYSTEMS
CONTENTS
page page
GENERAL INFORMATION WIPER SWITCH AND WASHER SWITCH . . . . . . 3
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . 1 DIAGNOSIS AND TESTING
REAR WIPER AND WASHER SYSTEM . . . . . . . 2 INTERMITTENT WIPE RELAY . . . . . . . . . . . . . . . 9
WINDSHIELD WASHER SYSTEM . . . . . . . . . . . . 1 WASHER SYSTEM . . . . . . . . . . . . . . . . . . . . . . . 7
WINDSHIELD WIPER SYSTEM . . . . . . . . . . . . . 1 WIPER SWITCH AND WASHER SWITCH . . . . . . 8
DESCRIPTION AND OPERATION WIPER SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . 5
CENTRAL TIMER MODULE . . . . . . . . . . . . . . . . 3 REMOVAL AND INSTALLATION
INTERMITTENT WIPE RELAY . . . . . . . . . . . . . . . 4 INTERMITTENT WIPE RELAY . . . . . . . . . . . . . . 14
WASHER FLUID LEVEL SENSOR . . . . . . . . . . . . 5 WASHER SYSTEM . . . . . . . . . . . . . . . . . . . . . . 15
WASHER NOZZLE AND PLUMBING . . . . . . . . . . 5 WIPER ARM . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
WASHER PUMP . . . . . . . . . . . . . . . . . . . . . . . . . 5 WIPER BLADE . . . . . . . . . . . . . . . . . . . . . . . . . 10
WASHER RESERVOIR . . . . . . . . . . . . . . . . . . . . 4 WIPER LINKAGE AND PIVOT . . . . . . . . . . . . . . 12
WIPER ARM AND BLADE . . . . . . . . . . . . . . . . . . 2 WIPER MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . 12
WIPER LINKAGE AND PIVOT . . . . . . . . . . . . . . . 2 WIPER SWITCH AND WASHER SWITCH . . . . . 14
WIPER MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL INFORMATION wipe mode is provided by delay logic and relay con-
trol circuitry contained within the Central Timer
INTRODUCTION Module (CTM), and an intermittent wipe relay.
Windshield and rear liftgate glass wiper and The windshield wipers will operate only when the
washer systems are standard factory-installed equip- ignition switch is in the Accessory or On positions. A
ment on this model. Refer to 8W-53 - Wipers in fuse located in the junction block protects the cir-
Group 8W - Wiring Diagrams for complete circuit cuitry of the windshield wiper system.
descriptions and diagrams. Following are general descriptions of the major
components in the windshield wiper system. Refer to
WINDSHIELD WIPER SYSTEM the owner's manual in the vehicle glove box for more
An intermittent windshield wiper system is stan- information on the features, use and operation of the
dard equipment on this model. The intermittent windshield wiper system.
wiper system lets the driver select from either of two
wiper speeds, low or high, or the intermittent wipe WINDSHIELD WASHER SYSTEM
delay mode. A knob on the end of the multi-function An electrically operated windshield washer system
switch stalk is rotated to select the desired wiper is standard equipment. A knob on the end of the
speed, or the intermittent wipe delay mode and inter- multi-function switch stalk is depressed toward the
val. steering column to activate the washer system. A
On models equipped with a base version of the washer reservoir in the engine compartment holds
CTM, the intermittent wipe mode delay times are the washer fluid, which is pressurized by a pump
driver adjustable from about one-half second to about when the windshield washer switch is actuated. The
eighteen seconds. On models equipped with a high- windshield washer pump feeds the pressurized
line version of the CTM, the intermittent wipe mode washer fluid through the washer system plumbing to
delay times are speed sensitive. Above about sixteen the windshield washer nozzles.
kilometers-per-hour (ten miles-per-hour) the delay is A standard equipment low washer fluid warning
driver adjustable from about one-half second to about lamp in the instrument cluster will warn the driver
eighteen seconds. Below about sixteen kilometers- when the washer fluid level needs to be checked.
per-hour (ten miles-per-hour) the high-line CTM dou- Refer to Group 8E - Instrument Panel Systems for
bles the delay time, or provides delays of about one more information on this feature.
second to about thirty-six seconds. The intermittent
8K - 2 WIPER AND WASHER SYSTEMS DN
GENERAL INFORMATION (Continued)
The washers will operate only when the ignition with a sponge or cloth and windshield washer fluid, a
switch is in the Accessory or On positions. A fuse mild detergent, or a non-abrasive cleaner. If the
located in the junction block protects the circuitry of squeegees continue to streak or smear, the wiper
the washer system. blades should be replaced.
Following are general descriptions of the major The blades are mounted to spring-loaded wiper
components in the windshield washer system. Refer arms. The spring tension of the wiper arms controls
to the owner's manual in the vehicle glove box for the pressure applied to the blades on the glass. The
more information on the features, use and operation windshield wiper arms are secured by a nut to each
of the windshield washer system. of the two wiper pivots on the cowl plenum cover/
grille panel at the base of the windshield. The rear
REAR WIPER AND WASHER SYSTEM wiper arm is secured by a nut directly to the rear
A rear wiper and washer system is standard facto- wiper motor output shaft on the liftgate below the
ry-installed equipment on this model. The rear wiper rear window glass.
is a single speed intermittent-cycle wiper system. A The wiper arms and blades cannot be adjusted or
single rear window switch pod in the instrument repaired. If faulty or damaged, they must be
panel lower bezel controls both the rear wiper and replaced.
washer system and the rear window defogger system.
The rear wiper motor has in integral electronic WIPER LINKAGE AND PIVOT
timer module, and is mounted inside the liftgate The wiper linkage and pivot module is secured
below the rear window glass. The rear washer sys- with four screws through four rubber grommet-type
tem has a dedicated washer fluid reservoir, washer insulators to the cowl plenum panel beneath the cowl
pump and plumbing located in the right rear liftgate plenum cover/grille panel. The wiper motor is
opening pillar area. secured with screws near the center of the tubular
The rear wiper and washer systems will operate linkage and pivot module bracket, and the wiper piv-
only when the ignition switch is in the On position. A ots are secured to the ends of the module bracket.
fuse in the junction block protects the circuitry of The two wiper pivot crank arms and the wiper
both the rear wiper and washer systems. motor crank arm each have ball studs on their ends.
Refer to the owner's manual in the vehicle glove The motor crank arm ball stud is the longer of the
box for more information on the features, use and three. Two drive links connect the motor crank arm
operation of the rear wiper and washer system. to the pivot crank arms.
The passenger side drive link has a plastic socket-
type bushing on each end. The driver side drive link
DESCRIPTION AND OPERATION has a plastic socket-type bushing on one end, and a
plastic sleeve-type bushing on the other end. The
WIPER ARM AND BLADE socket-type bushing on one end of each drive link is
All Durango models have two 50.8-centimeter (20- snap-fit over the ball stud on the crank arm of its
inch) windshield wiper blades with non-replaceable respective pivot. The driver side drive link sleeve-
rubber elements (squeegees). These wiper blades type bushing end is then fit over the motor crank
include an anti-lift feature. The wiper blades and arm ball stud, and the second socket-type bushing of
squeegees must be oriented correctly when installed the passenger side drive link is snap-fit over the
on the wiper arms for the anti-lift feature to be effec- exposed end of the motor crank arm ball stud.
tive. See Wiper Blade in the Removal and Installa- The wiper linkage, pivots, bushings, mounting
tion section of this group for more information. The bracket, and motor are only serviced as a complete
standard rear wiper uses a single 40.0-centimeter unit. If any part of this assembly is faulty or dam-
(15.75-inch) wiper blade with a non-replaceable rub- aged, the entire wiper module must be replaced.
ber element (squeegee).
Caution should be exercised to protect the rubber WIPER MOTOR
squeegees from any petroleum-based cleaners or con-
taminants, which will rapidly deteriorate the rubber. FRONT
If the squeegees are damaged, worn, or contami- The two-speed permanent magnet wiper motor has
nated, the entire wiper blade assembly must be an integral transmission and park switch. The motor
replaced. also contains an internal automatic resetting circuit
Wiper squeegees exposed to the elements for a long breaker to protect the motor from overloads.
time tend to lose their wiping effectiveness. Periodic The motor is secured near the center of the tubular
cleaning of the squeegees is suggested to remove wiper linkage and pivot module bracket with three
deposits of salt and road film. The wiper blades, screws. The wiper motor output shaft passes through
arms, and windshield or rear glass should be cleaned
DN WIPER AND WASHER SYSTEMS 8K - 3
DESCRIPTION AND OPERATION (Continued)
a hole in the module bracket, where a nut secures repaired. If any function of the multi-function switch
the wiper motor crank arm to the motor output shaft. is faulty, or if the switch is damaged, the entire
Wiper speed is controlled by current flow to the switch assembly must be replaced.
proper set of brushes. The wiper motor completes its
wipe cycle when the windshield wiper switch on the
end of the multi-function switch stalk is turned to
the Off position, and parks the blades in the lowest
portion of the wipe pattern.
The windshield wiper linkage, pivots, bushings,
mounting bracket, and motor are only serviced as a
complete unit. If any part of this unit is faulty or
damaged, the entire wiper module must be replaced.
REAR
The rear wiper motor is secured to a bracket that
is fastened to the liftgate inner panel with two
screws through two rubber grommet-type insulators,
below the rear window glass and behind the liftgate
trim panel. The motor output shaft passes through
the liftgate outer panel where a rubber grommet and
a nut seal and secure the unit to the liftgate outer Fig. 1 Multi-Function Switch
panel. A plastic cover snaps onto the motor output REAR
shaft to conceal the mounting nut. The rear wiper The single two-function rear wiper and washer
arm is secured directly to the motor output shaft switch is integral to the rear window switch pod,
with another nut, which is also concealed by a plastic which includes the rear window defogger switch. The
cover that snaps onto the end of the wiper arm. rear window switch pod is installed in the instru-
The rear wiper motor unit provides a single speed ment panel lower bezel, which is located near the
intermittent-cycle operating mode, which is provided center of the lower instrument panel, below the
by an electronic timer circuit that is integral to the heater and air conditioner controls. The rear wiper
motor unit. The rear wiper motor cannot be repaired. and washer switch controls the rear wiper and
If faulty or damaged, the entire rear wiper motor washer functions.
assembly must be replaced. The rear window switch pod also contains the rear
window defogger logic and timer circuitry, an amber
WIPER SWITCH AND WASHER SWITCH defogger indicator lamp, the rear window defogger
relay, and two switch illumination lamps. The indica-
FRONT tor and illumination lamps in the switch pod use
The windshield wiper and washer switches are incandescent bulbs, which can be serviced.
contained in the multi-function switch assembly (Fig. The sliding-type switch features a detent in the On
1). The multi-function switch assembly is secured to position for the rear wiper. Pushing in on the rear
the left side of the steering column. A knob on the wiper switch button activates the momentary rear
end of the multi-function switch stalk is rotated to washer switch. The rear wiper and washer switch
select the desired wiper speed or intermittent wipe also has an integral illumination lamp with a ser-
delay, or depressed toward the steering column to viceable bulb. Both the rear wiper and rear washer
activate the washer system. motors will operate continuously for as long as the
The multi-function switch contains circuitry for the switch is held in the momentary Wash position.
following functions: The rear wiper and washer switch cannot be
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