removal JEEP LIBERTY 2002 KJ / 1.G Workshop Manual

WIPERS/WASHERS
TABLE OF CONTENTS
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FRONT WIPERS/WASHERS.................. 1REAR WIPERS/WASHERS.................. 27
FRONT WIPERS/WASHERS
TABLE OF CONTENTS
page page
FRONT WIPERS/WASHERS
DESCRIPTION..........................2
OPERATION............................4
DIAGNOSIS AND TESTING - FRONT WIPER &
WASHER SYSTEM.....................6
CLEANING - FRONT WIPER & WASHER
SYSTEM.............................7
INSPECTION - FRONT WIPER & WASHER
SYSTEM.............................7
FRONT CHECK VALVE
DESCRIPTION..........................8
OPERATION............................9
REMOVAL.............................9
INSTALLATION..........................9
FRONT WASHER HOSES/TUBES
DESCRIPTION.........................10
OPERATION...........................10
FRONT WASHER NOZZLE
DESCRIPTION.........................11
OPERATION...........................11
REMOVAL.............................11
INSTALLATION.........................11
FRONT WIPER ARM
DESCRIPTION.........................12
OPERATION...........................12
REMOVAL.............................12
INSTALLATION.........................13
FRONT WIPER BLADE
DESCRIPTION.........................13
OPERATION...........................14
REMOVAL.............................14
INSTALLATION.........................14
FRONT WIPER MODULE
DESCRIPTION.........................15
OPERATION...........................15REMOVAL.............................16
INSTALLATION.........................16
FRONT WIPER/WASHER SWITCH
DESCRIPTION.........................16
OPERATION...........................16
WASHER FLUID LEVEL SWITCH
DESCRIPTION.........................17
OPERATION...........................17
REMOVAL.............................17
INSTALLATION.........................18
WASHER PUMP/MOTOR
DESCRIPTION.........................18
OPERATION...........................19
REMOVAL.............................19
INSTALLATION.........................20
WASHER RESERVOIR
DESCRIPTION.........................21
OPERATION...........................21
REMOVAL.............................21
INSTALLATION.........................22
WIPER HIGH/LOW RELAY
DESCRIPTION.........................23
OPERATION...........................23
DIAGNOSIS AND TESTING - WIPER HIGH/
LOW RELAY.........................24
REMOVAL.............................24
INSTALLATION.........................24
WIPER ON/OFF RELAY
DESCRIPTION.........................25
OPERATION...........................25
DIAGNOSIS AND TESTING - WIPER ON/OFF
RELAY..............................26
REMOVAL.............................26
INSTALLATION.........................26
KJWIPERS/WASHERS 8R - 1

OPERATION
The front check valve provides more than one func-
tion in this application. It serves as a wye connector
fitting between the cowl grille panel and washer noz-
zle sections of the front washer supply hose. It also
prevents washer fluid from draining out of the front
washer supply hoses back to the washer reservoir.
This drain-back would result in a lengthy delay when
the front washer switch is actuated until washer
fluid was dispensed through the front washer noz-
zles, because the washer pump would have to refill
the front washer plumbing from the reservoir to the
nozzles. Finally, the front check valve prevents
washer fluid from siphoning through the front
washer nozzles after the front washer system is
turned Off.
Within the check valve body, a small check valve is
held in place against a seat by a small coiled spring
to restrict flow through the unit until the valve is
unseated by a predetermined inlet fluid pressure.
When the washer pump pressurizes and pumps
washer fluid from the reservoir through the front
washer plumbing, the fluid pressure overrides the
spring pressure applied to the check valve and
unseats the valve, allowing washer fluid to flow
toward the front washer nozzles. When the washer
pump stops operating, spring pressure seats the
check valve and fluid flow in either direction within
the front washer plumbing is prevented.
REMOVAL
(1) Unlatch and open the hood.
(2) Remove both front wiper arms from the wiper
pivots. (Refer to 8 - ELECTRICAL/WIPERS/WASH-
ERS - FRONT/FRONT WIPER ARM - REMOVAL).
(3) Remove the cowl plenum cover/grille panel
from over the cowl plenum. (Refer to 23 - BODY/EX-
TERIOR/COWL GRILLE - REMOVAL).
(4) From the underside of the cowl plenum cover/
grille panel, disconnect the cowl plenum and washer
nozzle hoses from the three barbed nipples of the
front check valve (Fig. 4).
(5) Remove the front check valve from the under-
side of the cowl plenum cover/grille panel.
INSTALLATION
(1) Position the front check valve to the underside
of the cowl plenum cover/grille panel (Fig. 4). Be cer-
tain that the flow direction arrow molded into the
front check valve body is oriented towards the front
washer nozzles.
(2) From the underside of the cowl plenum cover/
grille panel, reconnect the cowl plenum and washer
nozzle hoses to the three barbed nipples of the front
check valve.
(3) Reinstall the cowl plenum cover/grille panel
over the cowl plenum. (Refer to 23 - BODY/EXTERI-
OR/COWL GRILLE - INSTALLATION).
(4) Reinstall both front wiper arms onto the wiper
pivots. (Refer to 8 - ELECTRICAL/FRONT WIPERS/
WASHERS/FRONT WIPER ARM - INSTALLATION).
(5) Close and latch the hood.
Fig. 3 Front Check Valve
1 - INLET NIPPLE
2 - FRONT CHECK VALVE
3 - OUTLET NIPPLE (2)
4 - FLOW DIRECTION ARROW
Fig. 4 Front Check Valve Remove/Install
1 - WASHER NOZZLE HOSE (RIGHT)
2 - FRONT CHECK VALVE
3 - COWL PLENUM WASHER HOSE
4 - ROUTING CLIP
5 - COWL GRILLE COVER (UNDERSIDE)
6 - WASHER NOZZLE HOSE (LEFT)
KJFRONT WIPERS/WASHERS 8R - 9
FRONT CHECK VALVE (Continued)

FRONT WASHER NOZZLE
DESCRIPTION
The two front washer nozzles have integral snap
features and an anti-rotation tab that secure them in
dedicated holes in the cowl plenum cover/grille panel
located near the base of the windshield (Fig. 7). The
domed upper surface of the washer nozzle is visible
on the top of the plenum cover/grille panel, and the
nozzle orifice is oriented towards the windshield
glass. The washer plumbing fittings for the washer
nozzles are concealed beneath the cowl plenum cover/
grille panel. These fluidic washer nozzles are con-
structed of molded plastic. The cowl plenum cover/
grille panel must be removed from the vehicle to
access the nozzles for service. The washer nozzles
cannot be adjusted or repaired. If faulty or damaged,
they must be replaced.
OPERATION
The two front washer nozzles are designed to dis-
pense washer fluid into the wiper pattern area on the
outside of the windshield glass. Pressurized washer
fluid is fed to each nozzle from the washer reservoir
by the washer pump/motor unit through a single
hose, which is attached to a barbed nipple on each
front washer nozzle below the cowl plenum cover/
grille panel. The washer nozzles incorporate a fluidic
design, which causes the nozzle to emit the pressur-
ized washer fluid as an oscillating stream to more
effectively cover a larger area of the glass area to be
cleaned.
REMOVAL
(1) Unlatch and open the hood.
(2) Remove both front wiper arms from the wiper
pivots. (Refer to 8 - ELECTRICAL/WIPERS/WASH-
ERS/FRONT WIPER ARM - REMOVAL).
(3) Remove the cowl plenum cover/grille panel
from over the cowl plenum. (Refer to 23 - BODY/EX-
TERIOR/COWL GRILLE - REMOVAL).
(4) From the underside of the cowl plenum cover/
grille panel, disconnect the washer nozzle hose from
the barbed nipple of the front washer nozzle (Fig. 8).
(5)
From the underside of the cowl grille cover,
release the integral snap features of the front washer
nozzle and push the nozzle out through the mounting
hole toward the top side of the cowl plenum cover/grille
panel.
(6) Remove the front washer nozzle from the top of
the cowl plenum cover/grille panel.
INSTALLATION
(1) From the top of the cowl plenum cover/grille
panel, position the nipple end of the front washer
nozzle through the mounting hole and engage the
anti-rotation tab of the nipple into the anti-rotation
notch in the mounting hole.
(2) Push firmly and evenly on the top of the front
washer nozzle until the integral snap features lock
into place on the underside of the cowl plenum cover/
grille panel.
(3) From the underside of the cowl grille cover,
reconnect the washer hose to the barbed nipple of the
front washer nozzle (Fig. 8).
(4) Reinstall the washer hose for the front washer
nozzle into its routing clips on the underside of the
cowl plenum cover/grille panel.
Fig. 7 Front Washer Nozzle
1 - NIPPLE
2 - ANTI-ROTATION TAB
3 - FRONT WASHER NOZZLE
4 - ORIFICE
5 - LATCH (2)
Fig. 8 Front Washer Nozzle Remove/Install
1 - COWL GRILLE COVER (UNDERSIDE)
2 - FRONT WASHER NOZZLE
3 - WASHER NOZZLE HOSE
KJFRONT WIPERS/WASHERS 8R - 11

(5) Reinstall the cowl plenum cover/grille panel
over the cowl plenum. (Refer to 23 - BODY/EXTERI-
OR/COWL GRILLE - INSTALLATION).
(6) Reinstall both front wiper arms onto the wiper
pivots. (Refer to 8 - ELECTRICAL/FRONT WIPERS/
WASHERS/FRONT WIPER ARM - INSTALLATION).
(7) Close and latch the hood.
FRONT WIPER ARM
DESCRIPTION
The front wiper arms are the rigid members located
between the wiper pivots that protrude from the cowl
plenum cover/grille panel near the base of the wind-
shield and the wiper blades on the windshield glass
(Fig. 9). These wiper arms feature an over-center hinge
that allows easy access to the windshield glass for
cleaning. The wiper arm has a die cast metal pivot end
with a large tapered mounting hole at one end. A
molded black plastic cap fits over the wiper arm retain-
ing nut to conceal the nut and this mounting hole fol-
lowing wiper arm installation. The wide end of a
tapered, stamped steel channel hinges on and is secured
with a hinge pin to the blade end of the wiper arm pivot
end. One end of a long, rigid, stamped steel strap, with
a small hole near its pivot end, is riveted and crimped
within the narrow end of the stamped steel channel.
The tip of the wiper blade end of this strap is bent back
under itself to form a small hook. Concealed within the
stamped steel channel, one end of a long spring is
engaged with a wire hook on the underside of the diecast pivot end, while the other end of the spring is
hooked through the small hole in the steel strap. The
entire wiper arm has a satin black finish applied to all
of its visible surfaces.
A wiper arm cannot be adjusted or repaired. If
damaged or faulty, the entire wiper arm unit must be
replaced.
OPERATION
The front wiper arms are designed to mechanically
transmit the motion from the wiper pivots to the wiper
blades. The wiper arm must be properly indexed to the
wiper pivot in order to maintain the proper wiper blade
travel on the glass. The tapered mounting hole in the
wiper arm pivot end interlocks with the serrations on
the tapered outer circumference of the wiper pivot shaft,
allowing positive engagement and finite adjustment of
this connection. The mounting nut locks the wiper arm
to the threaded stud of the wiper pivot shaft. The
spring-loaded wiper arm hinge controls the down-force
applied through the tip of the wiper arm to the wiper
blade on the glass. The hook formation on the tip of the
wiper arm provides a cradle for securing and latching
the wiper blade pivot block to the wiper arm.
REMOVAL
(1) Lift the front wiper arm to its over-center posi-
tion to hold the wiper blade off of the glass and
relieve the spring tension on the wiper arm to wiper
pivot shaft connection.
(2) Carefully pry the plastic nut cap off of the
pivot end of the wiper arm (Fig. 10).
(3) Remove the nut that secures the wiper arm to
the wiper pivot shaft.
Fig. 9 Front Wiper Arm
1 - HOOK
2 - STRAP
3 - CHANNEL
4 - PIVOT END
5 - PIVOT HOLE
6 - HINGE PIN
7 - TENSION SPRING
Fig. 10 Front Wiper Arm Remove/Install
1 - FRONT WIPER BLADE & ARM (2)
2 - CAP (2)
3 - NUT (2)
4 - PIVOT SHAFT (2)
5 - T-SHAPED ALIGNMENT MARK (2)
8R - 12 FRONT WIPERS/WASHERSKJ
FRONT WASHER NOZZLE (Continued)

element where it is gripped by the claws of the
superstructure.
All models have two 47.50 centimeter (18.70 inch)
long front wiper blades with non-replaceable rubber
elements (squeegees). The wiper blades cannot be
adjusted or repaired. If faulty, worn, or damaged the
entire wiper blade unit must be replaced.
OPERATION
The wiper blades are moved back and forth across
the glass by the wiper arms when the wipers are
being operated. The wiper blade superstructure is
the flexible frame that grips the wiper blade element
and evenly distributes the force of the spring-loaded
wiper arm along the length of the element. The com-
bination of the wiper arm force and the flexibility of
the superstructure makes the element conform to
and maintain proper contact with the glass, even as
the blade is moved over the varied curvature that
may be encountered across the glass surface. The
wiper element flexor provides the claws of the blade
superstructure with a rigid, yet flexible component
on the element which can be gripped. The rubber ele-
ment is designed to be stiff enough to maintain an
even cleaning edge as it is drawn across the glass,
yet resilient enough to conform to the glass surface
and flip from one cleaning edge to the other each
time the wiper blade changes directions. The airfoil
used on the driver side wiper blade is designed to
reduce the lifting effect caused by air moving over
the vehicle at higher highway speeds.
REMOVAL
NOTE: The notched end of the wiper element flexor
should always be oriented towards the end of the
wiper blade that is nearest to the wiper pivot.
(1) Lift the front wiper arm to raise the wiper
blade and element off of the glass, until the wiper
arm hinge is in its over-center position.
(2) To remove the wiper blade from the wiper arm,
depress the pivot block latch release tab under the
tip of the arm and slide the blade away from the tip
towards the pivot end of the arm far enough to dis-
engage the pivot block from the hook formation on
the end of the arm (Fig. 13).
(3) Extract the hook formation on the tip of the
wiper arm through the opening in the wiper blade
superstructure just ahead of the wiper blade pivot
block/latch unit.
CAUTION: Do not allow the wiper arm to spring
back against the glass without the wiper blade in
place or the glass may be damaged.(4) Gently lower the tip of the wiper arm onto the
glass.
INSTALLATION
NOTE: The notched end of the wiper element flexor
should always be oriented towards the end of the
wiper blade that is nearest to the wiper pivot.
(1) Lift the front wiper arm off of the windshield
glass, until the wiper arm hinge is in its over-center
position.
(2) Position the front wiper blade near the hook
formation on the tip of the arm with the notched end
of the wiper element flexor oriented towards the end
of the wiper arm that is nearest to the wiper pivot.
(3) Insert the hook formation on the tip of the
wiper arm through the opening in the wiper blade
superstructure ahead of the wiper blade pivot block/
latch unit far enough to engage the pivot block into
the hook (Fig. 13).
(4) Slide the wiper blade pivot block/latch up into
the hook formation on the tip of the wiper arm until
the latch release tab snaps into its locked position.
Latch engagement will be accompanied by an audible
click.
(5) Gently lower the wiper blade onto the glass.
Fig. 13 Front Wiper Blade Remove/Install
1 - SUPERSTRUCTURE
2 - WIPER ARM
3 - PIVOT BLOCK
4 - RELEASE TAB
5 - HOOK
6 - ELEMENT
8R - 14 FRONT WIPERS/WASHERSKJ
FRONT WIPER BLADE (Continued)

allows the motor to complete its current wipe cycle
after the wiper system has been turned Off, and to
park the wiper blades in the lowest portion of the
wipe pattern. The automatic resetting circuit breaker
protects the motor from overloads. The wiper motor
crank arm, the two wiper linkage members, and the
two wiper pivots mechanically convert the rotary out-
put of the wiper motor to the back and forth wiping
motion of the wiper arms and blades on the glass.
REMOVAL
(1) Unlatch and open the hood.
(2) Disconnect and isolate the battery negative
cable.
(3) Remove both front wiper arms from the wiper
pivots. (Refer to 8 - ELECTRICAL/WIPERS/WASH-
ERS - FRONT/FRONT WIPER ARM - REMOVAL).
(4) Remove the cowl plenum cover/grille panel
from over the cowl plenum. (Refer to 23 - BODY/EX-
TERIOR/COWL GRILLE - REMOVAL).
(5) Disconnect the headlamp and dash wire har-
ness connector for the front wiper motor from the
motor pigtail wire connector (Fig. 15).
(6) Remove the two screws that secure the front
wiper module to the top of the cowl plenum panel at
the pivot brackets.
(7) Remove the two nuts that secure the front
wiper module to the two weld studs on the bottom of
the cowl plenum panel.
(8) Lift the front wiper module up from the cowl
plenum panel far enough to disengage the two lower
insulators from the weld studs on the bottom of the
plenum panel.(9) Remove the front wiper module from the cowl
plenum panel as a unit.
INSTALLATION
(1) Position the front wiper module to the cowl ple-
num as a unit (Fig. 15).
(2) Lower the front wiper module lower mounting
insulators over the two weld studs on the bottom of
the cowl plenum panel.
(3) Install the two screws that secure the front
wiper module to the top of the cowl plenum panel at
the pivot brackets. Tighten the screw on the driver
side, followed by the screw on the passenger side.
Tighten the screws to 8 N´m (72 in. lbs.).
(4) Install and tighten the two nuts that secure
the front wiper module to the two weld studs on the
bottom of the cowl plenum panel. Tighten the nuts to
8 N´m (72 in. lbs.).
(5) Reconnect the headlamp and dash wire harness
connector for the front wiper motor to the motor pig-
tail wire connector.
(6) Reinstall the cowl plenum cover/grille panel
over the cowl plenum. (Refer to 23 - BODY/EXTERI-
OR/COWL GRILLE - INSTALLATION).
(7) Close and latch the hood.
(8) Reinstall both front wiper arms onto the wiper
pivots. (Refer to 8 - ELECTRICAL/FRONT WIPERS/
WASHERS/FRONT WIPER ARM - INSTALLATION).
(9) Reconnect the battery negative cable.
FRONT WIPER/WASHER
SWITCH
DESCRIPTION
The front wiper and washer switches are integral
to the right (wiper) control stalk of the multi-function
switch. (Refer to 8 - ELECTRICAL/LAMPS/LIGHT-
ING - EXTERIOR/MULTI-FUNCTION SWITCH -
DESCRIPTION).
OPERATION
The front wiper and washer switches are integral
to the right (wiper) control stalk of the multi-function
switch. (Refer to 8 - ELECTRICAL/LAMPS/LIGHT-
ING - EXTERIOR/MULTI-FUNCTION SWITCH -
OPERATION).
Fig. 15 Front Wiper Module Remove/Install
1 - NUT (2)
2 - SCREW (2)
3 - FRONT WIPER MODULE
4 - STUD (2)
5 - WIRE HARNESS CONNECTOR
8R - 16 FRONT WIPERS/WASHERSKJ
FRONT WIPER MODULE (Continued)

WASHER FLUID LEVEL
SWITCH
DESCRIPTION
The washer fluid level switch is a single pole, sin-
gle throw reed-type switch mounted at the rear of
the sump area near the bottom of the washer reser-
voir (Fig. 16). Only the molded plastic switch mount-
ing flange and the integral connector receptacle are
visible when the switch is installed in the reservoir.
A short nipple formation extends from the inner sur-
face of the switch mounting flange, and a barb on the
nipple near the switch mounting flange is pressed
through a rubber grommet seal installed in the
mounting hole of the reservoir. A small, molded plas-
tic float has two pivot pins near its center that are
snapped into two receptacles near the ends of two
stanchions that extend toward the float from the
switch nipple formation. A small magnet is secured
within the end of the float nearest the switch nipple
formation, and a reed switch is concealed within the
nipple. A diagnostic resistor is connected between the
two switch terminals within the switch mounting
flange. The washer fluid level switch cannot be
adjusted or repaired. If faulty or damaged, the switch
must be replaced.
OPERATION
The washer fluid level switch uses a pivoting,
oblong float to monitor the level of the washer fluid
in the washer reservoir. The float contains a small
magnet. When the float pivots, the proximity of this
magnet to a stationary reed switch within the nipple
formation of the switch changes. When the fluid level
in the washer reservoir is at or above the float level,
the float moves to a vertical position, the influence of
the float magnetic field is removed from the reed
switch, and the normally open reed switch contacts
open. When the fluid level in the washer reservoir
falls below the level of the pivoting float, the float
moves to a horizontal position, the influence of the
float magnetic field is applied to the reed switch, and
the contacts of the normally open reed switch close.
The washer fluid level switch is connected to the
vehicle electrical system through a dedicated take
out and connector of the headlamp and dash wire
harness. The switch is connected in series between
ground and the washer fluid switch sense input to
the ElectroMechanical Instrument Cluster (EMIC).
The switch receives a path to ground at all times
through another take out of the headlamp and dash
wire harness with a single eyelet terminal connector
that is secured under a ground screw near the front
of the left front fender inner shield in the engine
compartment. When the switch closes, the EMIC
senses the ground on the washer fluid switch sense
circuit. The EMIC is programmed to respond to this
input by illuminating the washer fluid indicator and
by sounding an audible chime tone warning.
The washer fluid level switch input to the EMIC
can be diagnosed using conventional diagnostic tools
and methods. (Refer to 8 - ELECTRICAL/INSTRU-
MENT CLUSTER/WASHER FLUID INDICATOR -
DIAGNOSIS AND TESTING).
REMOVAL
The washer fluid level switch can be removed from
the washer reservoir without removing the reservoir
from the vehicle.
(1) Disconnect and isolate the battery negative
cable.
(2) Raise and support the vehicle.
(3) Remove the splash shield from the right front
fender wheel house. (Refer to 23 - BODY/EXTERIOR/
FRONT WHEELHOUSE SPLASH SHIELD -
REMOVAL).
(4) Disconnect the front or rear washer hose from
one of the barbed outlet nipples of the washer pump/
motor unit and allow the washer fluid to drain into a
clean container for reuse.
(5) Disconnect the headlamp and dash wire har-
ness connector for the washer fluid level switch from
the switch connector receptacle (Fig. 17).
Fig. 16 Washer Fluid Level Switch
1 - MOUNTING FLANGE
2 - BARBED NIPPLE
3 - FLOAT
4 - RESERVOIR
5 - GROMMET SEAL
6 - PIVOT
7 - MAGNET
8 - CONNECTOR RECEPTACLE
KJFRONT WIPERS/WASHERS 8R - 17

NOTE: The pivoting float of the washer fluid level
switch must be in a horizontal position within the
reservoir in order to be removed. With the reservoir
empty and in an upright position, the pivoting float
will orient itself to the horizontal position when the
switch connector receptacle is pointed straight
downwards.
(6) Using a trim stick or another suitable wide
flat-bladed tool, gently pry the barbed nipple of the
washer fluid level switch out of the rubber grommet
seal on the back of the reservoir sump. Care must be
taken not to damage the reservoir.
(7) Remove the washer fluid level switch from the
washer reservoir.
(8) Remove the rubber grommet seal from the
washer fluid level switch mounting hole in the
washer reservoir and discard.
INSTALLATION
(1) Install a new rubber grommet seal into the
washer fluid level switch mounting hole in the
washer reservoir. Always use a new rubber grommet
seal on the reservoir.
(2) Insert the float of the washer fluid level switch
through the rubber grommet seal and into thewasher reservoir. The connector receptacle of the
washer fluid level switch should be pointed down-
ward.
(3) Using hand pressure, press firmly and evenly
on the washer fluid level switch mounting flange
until the barbed nipple is fully seated in the rubber
grommet seal in the washer reservoir mounting hole.
(4) Reconnect the headlamp and dash wire harness
connector for the washer fluid level switch to the
switch connector receptacle (Fig. 17).
(5) Reconnect the removed washer hose to the
barbed outlet nipple of the washer pump/motor unit.
(6) Reinstall the splash shield into the right front
fender wheel house. (Refer to 23 - BODY/EXTERIOR/
FRONT WHEELHOUSE SPLASH SHIELD -
INSTALLATION).
(7) Lower the vehicle.
(8) Refill the washer reservoir with the washer
fluid drained from the reservoir during the removal
procedure.
(9) Reconnect the battery negative cable.
WASHER PUMP/MOTOR
DESCRIPTION
The washer pump/motor unit (Fig. 18) is located on
the outboard side of the washer reservoir, on the out-
board side of the right front frame rail behind the
right front wheel house splash shield. A small perma-
nently lubricated and sealed reversible electric motor
is coupled to the rotor-type washer pump. The use of
an integral shuttle valve allows the washer pump/
motor unit to provide washer fluid to either the front
or the rear washer systems, depending upon the
direction of the motor/pump impeller rotation. A seal
flange with a barbed inlet nipple on the pump hous-
ing passes through a rubber grommet seal installed
in a dedicated mounting hole of the washer reservoir.
When the pump is installed in the reservoir the front
barbed outlet nipple on the pump shuttle valve hous-
ing connects the unit to the front washer hose and
the rear barbed outlet nipple connects the unit to the
rear washer hose. The letters ªFº and ªRº molded
into the shuttle valve housing adjacent to each nipple
provide further clarification of the nipple assign-
ments.
The washer pump/motor unit is retained on the
reservoir by the interference fit between the barbed
pump inlet nipple and the grommet seal, which is a
light press fit. The top of the washer pump is also
secured to the washer reservoir by the use of a snap
post on the motor and a snap post receptacle molded
into the reservoir that allows for mounting of the
washer pump without the use of fasteners. An inte-
gral connector receptacle on the top of the motor
Fig. 17 Washer Fluid Level Switch Remove/Install
1 - WASHER RESERVOIR
2 - WIRE HARNESS
3 - WASHER PUMP/MOTOR
4 - FRONT WASHER HOSE
5 - REAR WASHER HOSE
6 - WASHER FLUID LEVEL SWITCH
8R - 18 FRONT WIPERS/WASHERSKJ
WASHER FLUID LEVEL SWITCH (Continued)

housing connects the unit to the vehicle electrical
system through a dedicated take out and connector of
the headlamp and dash wire harness. The washer
pump/motor unit cannot be repaired. If faulty or
damaged, the entire washer pump/motor unit must
be replaced.
OPERATION
The washer pump/motor unit features a reversible
electric motor. The direction of the motor is con-
trolled by hard wired outputs from the momentary
front and rear washer switch circuitry contained
within the right (wiper) control stalk of the multi-
function switch. When battery current and ground
are applied to the two pump motor terminals, the
motor rotates in one direction. When the polarity of
these connections is reversed, the motor rotates in
the opposite direction. When the pump motor is ener-
gized, the rotor-type pump pressurizes the washer
fluid and forces it through one of the two pump out-
let nipples, and into the front or rear washer plumb-
ing.Washer fluid is gravity-fed from the washer reser-
voir to the inlet port of the washer pump housing. An
integral shuttle valve is located in a housing on the
outlet port side of the pump housing (Fig. 19). This
shuttle valve controls which washer system plumbing
receives the washer fluid being pressurized by the
pump. When the pump impeller rotates in the coun-
terclockwise direction (viewed from the bottom), pres-
surized washer fluid is pushed out the front washer
system port and biases the shuttle valve to the left,
sealing off the rear washer system outlet nipple.
When the pump impeller rotates in the clockwise
direction (viewed from the bottom), pressurized
washer fluid is pushed out the rear washer system
port and biases the shuttle valve to the right, sealing
off the front washer system outlet nipple.
The washer pump/motor unit can be diagnosed
using conventional diagnostic tools and methods.
REMOVAL
(1) Turn the front wheels full lock to the right.
(2) Disconnect and isolate the battery negative
cable.
(3) Raise and support the vehicle.
(4) Unsnap and lift the cover over the access hole
at the front of the right front wheel house splash
shield.
(5) Place a clean container on the floor beneath the
washer pump/motor location to catch any washer
fluid that is spilled during the following procedure.
(6) Reach through the access hole and firmly grasp
the top of the washer pump/motor housing.
Fig. 18 Washer Pump/Motor
1 - SNAP POST
2 - CONNECTOR RECEPTACLE
3 - MOTOR
4 - PUMP
5 - FRONT WASHER OUTLET NIPPLE
6 - SHUTTLE VALVE
7 - REAR WASHER OUTLET NIPPLE
8 - INLET NIPPLE
9 - FILTER SCREEN
Fig. 19 Washer Pump Fluid Flow
1 - IMPELLER ROTATION (VIEWED FROM BOTTOM)
2 - IMPELLER OUTPUT
3 - REAR WASHER OUTLET NIPPLE
4 - SHUTTLE VALVE
5 - FRONT WASHER OUTLET NIPPLE
KJFRONT WIPERS/WASHERS 8R - 19
WASHER PUMP/MOTOR (Continued)

WASHER RESERVOIR
DESCRIPTION
A single washer fluid reservoir is used for both the
front and rear washer systems (Fig. 22). The molded
plastic washer fluid reservoir is mounted on the out-
board side of the right front frame rail in front of the
right front wheel, where it is concealed by the right
front wheel house splash shield. The only visible
component of the washer reservoir is the filler neck
and cap unit, which extends through a hole in the
right front wheel house extension panel into the
engine compartment. A bright yellow plastic filler cap
with an integral bail strap and filler neck mounting
bracket is labeled with an International Control and
Display Symbol icon for ªWindshield Washerº and the
text ªWasher Fluid Onlyº molded into it. The cap
snaps over the open end of the filler neck.
There is a dedicated hole on the outboard side of
the reservoir provided for the mounting of the
washer pump/motor unit, and another dedicated hole
on the rear of the reservoir for the washer fluid level
switch. A snap post receptacle molded into the reser-
voir allows for mounting of the washer pump without
the use of fasteners. The reservoir also features inte-
gral hose routing troughs on its outboard side and
integral routing clips along its top. The washer res-
ervoir is secured to the outboard side of the right
front frame rail by two screws and an integral
molded tab that engages in a slot in the right front
frame rail. Another screw secures the reservoir fillerneck to the upper radiator crossmember in the front
of the engine compartment. The right front fender
wheel house splash shield must be removed to access
the washer reservoir for service.
OPERATION
The washer fluid reservoir provides a secure,
on-vehicle storage location for a large reserve of
washer fluid for operation of the front and rear
washer systems. The washer reservoir filler neck pro-
vides a clearly marked and readily accessible point
from which to add washer fluid to the reservoir. The
washer/pump motor unit is located in a sump area
near the front of the reservoir to be certain that
washer fluid will be available to the pump as the
fluid level in the reservoir becomes depleted. The
washer pump/motor unit is mounted in the lowest
position in the sump. The washer fluid level switch is
mounted just above the sump area of the reservoir so
that there will be adequate warning to the vehicle
operator that the washer fluid level is low, before the
washer system will no longer operate.
REMOVAL
(1) Turn the front wheels full lock to the right.
(2) Unlatch and open the hood.
(3) Disconnect and isolate the battery negative
cable.
(4) Remove the air cleaner housing from the top of
the right front fender wheel house. (Refer to 9 -
ENGINE/AIR INTAKE SYSTEM/AIR CLEANER
ELEMENT - REMOVAL).
(5) Remove the screw that secures the washer res-
ervoir filler neck support to upper radiator cross-
member (Fig. 23).
Fig. 22 Washer Reservoir
1 - CAP
2 - RESERVOIR
3- SNAP POST RECEPTACLE
4 - FRONT HOSE TROUGH
5 - WASHER PUMP HOLE
6 - REAR HOSE TROUGH
7 - HOOK
Fig. 23 Washer Reservoir Cap Remove/Install
1 - SCREW (1)
2 - CAP
3 - UPPER RADIATOR CROSSMEMBER
KJFRONT WIPERS/WASHERS 8R - 21