Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Jeep Cherokee XJ 1997.1999-2001 Approved 2000 XJ Jeep Cherokee exj_8k
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XJ WIPER AND WASHER SYSTEMS 8K - 1
WIPER AND WASHER SYSTEMS
TABLE OF CONTENTS
page page
GENERAL INFORMATION WASHER NOZZLE AND PLUMBING . . . . . . . . . . . 4
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 1 DIAGNOSIS AND TESTING
WINDSHIELD WIPER SYSTEM . . . . . . . . . . . . . . 1 WIPER SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . 4
WINDSHIELD WASHER SYSTEM. . . . . . . . . . . . . 1 WASHER SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . 6
REAR WIPER AND WASHER SYSTEM . . . . . . . . 2 WIPER SWITCH AND WASHER SWITCH. . . . . . . 7
DESCRIPTION AND OPERATION REMOVAL AND INSTALLATION
WIPER ARM AND BLADE. . . . . . . . . . . . . . . . . . . 2 WIPER BLADE . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
WIPER LINKAGE AND PIVOT. . . . . . . . . . . . . . . . 2 WIPER ARM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
WIPER MOTOR. . . . . . . . . . . . . . . . . . . . . . . . . . . 2 WIPER LINKAGE AND PIVOT. . . . . . . . . . . . . . . . 9
WIPER SWITCH AND WASHER SWITCH. . . . . . . 3 WIPER MOTOR. . . . . . . . . . . . . . . . . . . . . . . . . . . 9
WASHER RESERVOIR . . . . . . . . . . . . . . . . . . . . . 3 WIPER SWITCH AND WASHER SWITCH. . . . . . 11
WASHER PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . 4 WASHER SYSTEM . . . . . . . . . . . . . . . . . . . . . . . 13
WASHER FLUID LEVEL SENSOR . . . . . . . . . . . . . 4
GENERAL INFORMATION The intermittent wipe mode delay times are driver
adjustable from about one second to about fifteen sec-
INTRODUCTION onds. The intermittent wipe mode is provided by
Windshield wiper and washer systems are stan- delay logic and relay control circuitry contained
dard factory-installed equipment on this model. A within the intermittent wiper/washer switch. The
rear wiper and washer system is optional factory-in- intermittent wipe relay is also contained within the
stalled equipment. Following is general information switch.
about the available wiper and washer systems for The windshield wipers will operate only when the
this vehicle. Refer to 8W-53 - Wipers in Group 8W - ignition switch is in the Accessory or On positions. A
Wiring Diagrams for complete circuit descriptions circuit breaker located in the junction block protects
and diagrams. the circuitry of the windshield wiper system. Refer to
the owner's manual in the vehicle glove box for more
NOTE: This group covers both Left-Hand Drive information on the features, use and operation of the
(LHD) and Right-Hand Drive (RHD) versions of this windshield wiper system.
model. Whenever required and feasible, the RHD
versions of affected vehicle components have been WINDSHIELD WASHER SYSTEM
constructed as mirror-image of the LHD versions. An electrically operated windshield washer system
While most of the illustrations used in this group is standard equipment. The washer reservoir is
represent only the LHD version, the diagnostic and located between the inner and outer front fenders,
service procedures outlined can generally be above and forward of the left front wheel housing.
applied to either version. Exceptions to this rule The reservoir filler neck is located in the engine com-
have been clearly identified as LHD or RHD, if a partment on the left inner fender shield.
special illustration or procedure is required. The washer reservoir holds the washer fluid, which
is pressurized by a pump when the windshield
washer switch lever is actuated. The windshield
WINDSHIELD WIPER SYSTEM washer pump feeds the pressurized washer fluid
An intermittent windshield wiper system is stan- through the washer system plumbing to the wind-
dard equipment on this model. The intermittent shield washer nozzles.
wiper system lets the driver select from either of two A low washer fluid warning lamp is standard
wiper speeds, low or high, or the intermittent wipe equipment on all models equipped with the optional
delay mode. rear wiper and washer system. The low washer fluid
warning lamp in the instrument cluster will warn
8K - 2 WIPER AND WASHER SYSTEMS XJ
GENERAL INFORMATION (Continued)
the driver when the washer fluid level needs to be The blades are mounted to spring-loaded wiper
checked. Refer to Group 8E - Instrument Panel Sys- arms. The spring tension of the wiper arms controls
tems for more information on this feature. the pressure applied to the blades on the glass. The
The washers will operate only when the ignition windshield wiper arms are secured by an integral
switch is in the Accessory or On positions. If the wip- latch to the two wiper pivots on the cowl plenum cov-
ers are not already turned on when the washers are er/grille panel at the base of the windshield. The rear
activated, the wipers will be automatically cycled for wiper arm is secured by a nut directly to the rear
one or two wipes, then be turned off. A fuse located wiper motor output shaft on the liftgate below the
in the junction block protects the circuitry of the liftgate glass.
washer system. Refer to the owner's manual in the The wiper arms and blades cannot be adjusted or
vehicle glove box for more information on the fea- repaired. If faulty or damaged, they must be
tures, use and operation of the windshield washer replaced.
system.
WIPER LINKAGE AND PIVOT
REAR WIPER AND WASHER SYSTEM The wiper linkage and pivot module is secured
A rear wiper and washer system is an available with screws to the cowl top panel beneath the cowl
option on this model. The rear wiper system is a plenum cover/grille panel. The wiper motor is
fixed-cycle wiper system. A single switch in the secured with screws to the center of the linkage and
instrument panel accessory switch bezel controls both pivot module bracket. The wiper pivots are secured
the rear wiper and washer functions. The rear to the ends of the module bracket.
washer system shares the reservoir of the windshield The two wiper pivot crank arms and the wiper
washer system, but has its own dedicated washer motor crank arm each have ball studs on their ends.
pump and plumbing. The left pivot ball stud is the longer of the three. A
The rear wiper and washer systems will operate connecting link with a plastic socket-type bushing in
only when the ignition switch is in the Accessory or the right end, and a plastic sleeve-type bushing in
On positions. A fuse in the junction block protects the the left end, is fit over the pivot ball studs to join the
circuitry of both the rear wiper and washer systems. two pivots.
Refer to the owner's manual in the vehicle glove The wiper drive link has a plastic socket-type
box for more information on the features, use and bushing on each end. One end of the drive link is
operation of the rear wiper and washer system. snap-fit over the exposed end of the longer left pivot
ball stud, while the other end is snap-fit over the ball
stud on the wiper motor crank arm.
DESCRIPTION AND OPERATION The wiper linkage, pivots, bushings, motor, crank
arm, and mounting bracket are only serviced as a
WIPER ARM AND BLADE complete unit. If any part of this assembly is faulty
All Cherokee models have two 45.72-centimeter or damaged, the entire unit must be replaced.
(18-inch) windshield wiper blades with non-replace-
able rubber elements (squeegees). The optional rear WIPER MOTOR
wiper uses a single 33.0-centimeter (13-inch) wiper
blade with a non-replaceable rubber element (squee- FRONT
gee). The two-speed permanent magnet wiper motor has
Caution should be exercised to protect the rubber an integral transmission and park switch. The motor
squeegees from any petroleum-based cleaners or con- also contains an internal automatic resetting circuit
taminants, which will rapidly deteriorate the rubber. breaker to protect the motor from overloads.
If the squeegees are damaged, worn, or contami- The motor is secured to the wiper linkage and
nated, the entire wiper blade assembly must be pivot module bracket with three screws and is pro-
replaced. tected by a rubber boot. The wiper motor output
Wiper squeegees exposed to the elements for a long shaft passes through a hole in the module bracket,
time tend to lose their wiping effectiveness. Periodic where a nut secures the wiper motor crank arm to
cleaning of the squeegees is suggested to remove the motor output shaft. A reinforcement and stud
deposits of salt and road film. The wiper blades, plate with a rubber-isolated mounting bracket
arms, and windshield or rear glass should be cleaned extends from the cowl plenum side of the dash panel
with a sponge or cloth and windshield washer fluid, a to the motor mounting bracket to provide additional
mild detergent, or a non-abrasive cleaner. If the support.
squeegees continue to streak or smear, the wiper Wiper speed is controlled by current flow to the
blades should be replaced. proper set of brushes. The wiper motor completes its
XJ WIPER AND WASHER SYSTEMS 8K - 3
DESCRIPTION AND OPERATION (Continued)
wipe cycle when the windshield wiper switch stalk is
moved to the Off position, and parks the blades in
the lowest portion of the wipe pattern.
The windshield wiper motor cannot be repaired. If
faulty or damaged, the entire wiper linkage and pivot
module unit must be replaced. The reinforcement
bracket and stud plate are available for service.
REAR
The rear wiper motor is secured to a bracket that
is fastened to the liftgate inner panel, below the lift-
gate glass and behind the liftgate trim panel. The
motor output shaft passes through the liftgate outer
panel where a rubber gasket and plastic bezel unit,
and a nut seal and secure the unit to the liftgate
outer panel. The rear wiper arm is secured directly Fig. 1 Windshield Wiper Switch and Washer Switch
to the motor output shaft with a nut.
The rear wiper motor unit provides three operating instrument panel center bezel area, below the heater
modes: and air conditioner controls. The rear wiper and
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