2002 JEEP LIBERTY Workshop Manual

headliner hose is glued to top of the headliner and
routed along the right roof side rail to the rear of the
vehicle. At the rear of the vehicle, the headliner hose
passes through a hole at the rear portion of the roof
rear inner header panel and is connected to the rear
check valve. From the rear check valve, there is a
short section of hose that connects the rear check
valve to the rear washer nozzle.
Washer hose is available for service only as roll
stock, which must then be cut to length. The head-
liner washer hose is integral to the headliner unit
and, if faulty or damaged, the headliner unit must be
replaced. However, the headliner hose is marked
with a white cut line on the A-pillar where the hose
should be cut and spliced with a plastic in-line con-
nector fitting to facilitate headliner removal without
the need to remove the instrument panel. (Refer to
23 - BODY/INTERIOR/HEADLINER - REMOVAL
AND INSTALLATION). The molded plastic washer
hose fittings cannot be repaired. If these fittings are
faulty or damaged, they must be replaced.
OPERATION
Washer fluid in the washer reservoir is pressurized
and fed by the washer pump/motor through the rear
washer system plumbing and fittings to the rear
washer nozzle located on the roof panel above the
rear flip-up glass opening. Whenever routing the
washer hose or a wire harness containing a washer
hose, it must be routed away from hot, sharp, or
moving parts; and, sharp bends that might pinch the
hose must be avoided.
REAR WASHER NOZZLE
DESCRIPTION
The rear washer nozzle is a fluidic-type unit con-
structed of molded plastic (Fig. 6). The nozzle is
secured by a snap fit in a dedicated mounting hole
located in the rear edge of the roof panel above the
rear flip-up glass opening and to the right of the
Center High Mounted Stop Lamp (CHMSL) unit. A
rubber gasket on the back of the nozzle seals the noz-
zle to the roof panel opening. The back of the nozzle
includes an integral alignment feature on the left
side, an integral engagement tab on the top, an inte-
gral latch feature on the bottom, and the washer
plumbing nipple which are all concealed between the
outer roof panel and the rear roof inner header. The
rear washer nozzle latch feature is a one time com-
ponent, and will be damaged if the nozzle is removed
from its mounting hole for service. The rear washer
nozzle cannot be adjusted or repaired. If faulty or
damaged, the entire nozzle unit must be replaced.
OPERATION
The rear washer nozzle is designed to dispense
washer fluid into the wiper pattern area on the out-
side of the rear flip-up glass. Pressurized washer
fluid is fed to the nozzle from the washer reservoir by
the washer pump/motor through a single hose, which
is attached to a barbed nipple on the back of the rear
washer nozzle. The rear washer nozzle incorporates a
fluidic design, which causes the nozzle to emit the
pressurized washer fluid as an oscillating stream to
more effectively cover a larger area of the glass area
to be cleaned.
REMOVAL
NOTE: The rear washer nozzle latch feature is a one
time component, and will be damaged if the nozzle is
removed from its mounting hole for service. If
removed from its mounting hole for any reason, the
rear washer nozzle must be replaced with a new unit.
(1) Using a trim stick or another suitable wide
flat-bladed tool, gently pry the bottom of the rear
washer nozzle away from the roof panel until the
latch feature at the bottom of the nozzle that secures
it in the mounting hole of the roof panel snaps.
(2) Pull the rear washer nozzle out from the roof
panel far enough to access the washer hose (Fig. 7).
(3) Disconnect the washer hose from the barbed
nipple on the back of the rear washer nozzle.
(4) Discard the rear washer nozzle.
Fig. 6 Rear Washer Nozzle
1 - ENGAGEMENT TAB (TOP)
2 - GASKET
3 - REAR WASHER NOZZLE
4 - ALIGNMENT FEATURE
5 - ORIFICE
6 - LATCH FEATURE (BOTTOM)
7 - NIPPLE
8R - 36 REAR WIPERS/WASHERSKJ
REAR WASHER HOSES/TUBES (Continued)

INSTALLATION
NOTE: The rear washer nozzle latch feature is a one
time component, and will be damaged if the nozzle
is removed from its mounting hole for service. If
removed from its mounting hole for any reason, the
rear washer nozzle must be replaced with a new
unit.
(1) Position the new rear washer nozzle to the roof
panel (Fig. 7). Be certain that a new rubber gasket is
in position on the back of the nozzle.
(2) Reconnect the washer hose to the barbed nip-
ple on the back of the rear washer nozzle.
(3) Insert the rear washer nozzle supply hose and
nipple into the mounting hole in the roof panel and
align the nozzle with the hole.
(4) Engage the tab at the top of the nozzle behind
the sheet metal at the top of the roof panel mounting
hole.
(5) Using hand pressure, press firmly and evenly
on the hood of the rear washer nozzle until the lower
latch feature snaps into place behind the sheet metal
at the bottom of the roof panel mounting hole.
REAR WIPER ARM
DESCRIPTION
The rear wiper arm is the rigid member located
between the rear wiper motor output shaft that pro-
trudes from the outer tailgate panel near the base of
the rear flip-up glass opening and the rear wiper
blade (Fig. 8). This wiper arm features an over-center
hinge that allows easy access to the tailgate and rear
flip-up glass for cleaning, after the spare tire is
removed. The wiper arm has a die cast metal pivot
end with a large tapered mounting hole at one end. A
molded plastic pivot cover is secured loosely to and
pivots on the wiper arm hinge pin to conceal the
wiper arm retaining nut. The wide end of a tapered,
stamped steel channel is secured with a hinge pin to
the pivot end of the wiper arm. 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 die cast
pivot end, while the other end of the spring is hooked
through the small hole in the steel strap. A molded
plastic wiper arm support is snapped onto the wiper
arm strap where it exits the channel. The entire
wiper arm has a satin black finish applied to all of
its visible surfaces.
Fig. 7 Rear Washer Nozzle Remove/Install
1 - NOZZLE
2 - ROOF PANEL
3 - HEADLINER HOSEFig. 8 Rear Wiper Arm
1 - HOOK
2 - STRAP
3 - CHANNEL
4 - HINGE PIN
5 - COVER
6 - PIVOT END
7 - TENSION SPRING
8 - SUPPORT
KJREAR WIPERS/WASHERS 8R - 37
REAR WASHER NOZZLE (Continued)

A wiper arm cannot be adjusted or repaired. If
damaged or faulty, the entire wiper arm unit must be
replaced.
OPERATION
The rear wiper arm is designed to mechanically
transmit the motion from the rear wiper motor out-
put shaft to the rear wiper blade. The wiper arm
must be properly indexed to the motor output shaft
in order to maintain the proper wiper blade travel on
the glass. The wiper arm support is designed to lift
and support the rear wiper arm and blade off of the
glass when the rear wiper blade is parked. This sup-
port and the park ramp on the tailgate outer panel
below the glass also provide an alignment reference
to ensure accurate rear wiper arm and blade instal-
lation. The tapered hole in the wiper arm pivot end
is interlocks with the serrations on the outer circum-
ference of the tapered motor output shaft, allowing
positive engagement and finite adjustment of this
connection. A hex nut secures the wiper arm pivot
end to the threads on the rear wiper motor output
shaft and the pivot cover hinges and snaps over this
connection for a neat appearance. 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 rear wiper arm pivot cover by lifting it
at the rear wiper motor output shaft end of the arm
(Fig. 9).
(2) Remove the nut that secures the rear wiper
arm to the rear wiper motor output shaft.
(3) If necessary, use a battery terminal puller to
disengage the wiper arm from the rear wiper motor
output shaft splines (Fig. 10).
NOTE: Depending upon the size and type of puller
used, it may be necessary to remove the spare tire
from the tailgate. Refer to the owner's manual in the
vehicle glove box for information on removing the
spare tire from the tailgate.
(4) Remove the rear wiper arm pivot end from the
motor output shaft.
INSTALLATION
NOTE: Always install the wiper arm and blade with
the wiper motor in the Park position.
(1) The rear wiper arm must be indexed to the
motor output shaft with the rear wiper motor in the
park position to be properly installed. Place thewiper arm onto the tailgate with the wiper arm sup-
port positioned on the park ramp and the tapered
mounting hole on the pivot end of the arm positioned
over the rear wiper motor output shaft.
(2) Position the tab on the back of the rear wiper
arm support on the tailgate park ramp in the Instal-
lation Position (Fig. 11).
(3) With the wiper arm in the Installation Posi-
tion, push the tapered mounting hole on the pivot
end of the wiper arm down over the rear wiper motor
output shaft.
Fig. 9 Rear Wiper Arm Remove/Install
1 - SPARE TIRE
2 - WRENCH
3 - FLIP-UP GLASS
4 - PARK RAMP
5 - REAR WIPER ARM
6 - PIVOT COVER
Fig. 10 Wiper Arm Puller - Typical
1 - WIPER ARM
2 - WIPER PIVOT
3 - BATTERY TERMINAL PULLER
8R - 38 REAR WIPERS/WASHERSKJ
REAR WIPER ARM (Continued)

(4) Install and tighten the nut that secures the
rear wiper arm to the rear wiper motor output shaft.
Tighten the nut to 18 N´m (13 ft. lbs.).
(5) Close the rear wiper arm pivot cover.
(6) Lift the rear wiper arm support away from the
park ramp, then place the wiper arm support in the
park ramp in the Park Position (Fig. 11).
REAR WIPER BLADE
DESCRIPTION
The rear wiper blade is secured by an integral
latching pivot block to the hook formation on the tip
of the rear wiper arm, and rests off the glass on a
park ramp on the tailgate near the base of the rear
flip-up glass opening when the wiper is not in oper-ation (Fig. 12). The rear wiper blade consists of the
following components:
²Superstructure- The superstructure includes
a stamped steel bridge and plastic links with claw
formations that grip the wiper blade element. Also
included in this unit is the latching, molded plastic
pivot block that secures the superstructure to the
wiper arm. All of the metal components of the wiper
blade have a satin black finish applied.
²Element- The wiper element or squeegee is the
resilient rubber member of the wiper blade that con-
tacts the glass.
²Flexor- The flexor is a rigid metal component
running along the length of each side of the wiper
element where it is gripped by the claws of the
superstructure.
All models have a single 28.00 centimeter (11.00
inch) rear wiper blade with a non-replaceable rubber
element (squeegee). The wiper blade cannot be
adjusted or repaired. If faulty, worn, or damaged the
entire wiper blade unit must be replaced.
OPERATION
The wiper blade is moved back and forth across the
glass by the wiper arm when the wiper system is in
operation. The wiper blade superstructure is the flex-
ible 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
Fig. 11 Rear Wiper Arm Installation
1 - TAILGATE
2 - PARK RAMP
3 - REAR WIPER ARM
4 - INSTALLATION POSITION
5 - REAR WIPER ARM AND BLADE
6 - PARK POSITION
7 - PARK RAMP
8 - TAILGATE
Fig. 12 Rear Wiper Blade
1 - SUPERSTRUCTURE
2 - PIVOT PIN
3 - LATCH RELEASE
4 - PIVOT BLOCK
5 - CLAW
6 - FLEXOR
7 - ELEMENT
KJREAR WIPERS/WASHERS 8R - 39
REAR WIPER ARM (Continued)

and maintain proper contact with the glass, even as
the blade is moved over the varied curvature found
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 element is designed to be
stiff enough to maintain an even cleaning edge as it
is drawn across the glass, but resilient enough to
conform to the glass surface and flip from one clean-
ing edge to the other each time the wiper blade
changes directions.
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 motor out-
put shaft.
(1) Disengage the rear wiper arm support from the
rear wiper arm park ramp on the right side of the
tailgate just below the rear flip-up glass.
(2) Lift the rear wiper arm to raise the wiper blade
and element off of the tailgate and the rear flip-up
glass.
(3) To remove the wiper blade from the wiper arm,
carefully lift up the pivot block latch release tab on
the top of the wiper arm to unlatch it from the arm
(Fig. 13).(4) Raise the pivot block latch release tab until it
is perpendicular to the rear wiper blade superstruc-
ture (Fig. 14).
(5) Slide the rear wiper blade away from the tip of
the arm towards the pivot end of the arm far enough
to disengage the pivot block from the hook formation
on the end of the arm.
(6) Extract the hook formation on the tip of the
wiper arm from the window in the wiper blade pivot
block/latch unit.
CAUTION: Do not allow the wiper arm to spring
back against the tailgate or the flip-up glass without
the wiper blade in place or they may be damaged.
(7) Gently lower the wiper arm and place the arm
support in the park ramp.
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 motor out-
put shaft.
(1) Lift the rear wiper arm support out of the tail
gate park ramp.
(2) Position the rear wiper blade near the hook for-
mation 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 motor out-
put shaft.
Fig. 13 Rear Wiper Blade Release
1 - PIVOT BLOCK WINDOW
2 - TIP OF REAR WIPER ARM
3 - SUPERSTRUCTURE
4 - PIVOT BLOCK HINGE PIN
5 - LATCH RELEASE TAB
Fig. 14 Rear Wiper Blade Remove/Install
1 - SUPERSTRUCTURE
2 - HOOK
3 - ELEMENT
4 - LATCH RELEASE
5 - REAR WIPER ARM
8R - 40 REAR WIPERS/WASHERSKJ
REAR WIPER BLADE (Continued)

(3) Raise the pivot block latch release tab until it
is perpendicular to the rear wiper blade superstruc-
ture (Fig. 14).
(4) Insert the hook formation on the tip of the
wiper arm through the window in the wiper blade
pivot block/latch unit.
(5) Slide the wiper blade pivot block/latch up into
the hook formation on the tip of the wiper arm until
the hook is firmly seated against the pivot block.
(6) Press the pivot block latch release tab down-
ward until it snaps into its locked position over the
top of the wiper arm.
(7) Gently lower the wiper arm and place the arm
support in the tailgate park ramp.
REAR WIPER MOTOR
DESCRIPTION
The rear wiper motor is concealed within the tail-
gate, below the rear flip-up glass opening and behind
the tailgate inner trim panel. The end of the motor
output shaft that protrudes through the tailgate
outer panel to drive the rear wiper arm and blade is
the only visible component of the rear wiper motor
(Fig. 15). A rubber gasket, a bezel, and a nut secure
and seal the motor output shaft to the tailgate outer
panel. A molded plastic nut cover snaps onto the
bezel to conceal the nut and improve appearance. An
integral connector receptacle connects the rear wipermotor to the vehicle electrical system through a ded-
icated take out and connector of the tailgate wire
harness. The rear wiper motor consists of the follow-
ing major components:
²Bracket- The rear wiper motor bracket consists
of a stamped steel mounting plate for the wiper
motor that is secured with screws through two rub-
ber insulators to the tailgate inner panel.
²Rear Wiper Module- The rear wiper motor
electronic controls are concealed beneath a molded
plastic cover and includes the rear wiper system elec-
tronic logic and rear wiper motor electronic controls.
²Motor- The permanent magnet rear wiper
motor is secured with screws to the rear wiper motor
bracket. The wiper motor includes an integral trans-
mission, and the motor output shaft.
The rear wiper motor cannot be adjusted or
repaired. If any component of the motor is faulty or
damaged, the entire rear wiper motor unit must be
replaced. The motor output shaft gasket, bezel, nut,
and nut cover are available for service replacement.
OPERATION
The rear wiper motor receives non-switched bat-
tery current through a fuse in the Junction Block
(JB) on a fused B(+) circuit and is connected to
ground at all times. The rear wiper motor operation
is controlled by the vehicle operator through battery
current signal inputs received by the rear wiper
motor electronic control module from the rear wiper
switch circuitry that is integral to the right (wiper)
control stalk of the multi-function switch on the
steering column. The module also receives an exter-
nal control input from the flip-up glass ajar switch
sense circuit. If the rear wiper module senses that
the flip-up glass is ajar, it will not allow the rear
wiper motor to operate.
The rear wiper module electronic control logic uses
these inputs, its internal inputs, and its program-
ming to provide a continuous wipe mode, an inter-
mittent wipe mode, a wipe-after-wash mode, and off-
the-glass wiper blade parking. The wiper blade
cycling is controlled by the internal electronic con-
trols of the module. The module controls current flow
to the wiper motor brushes and provides an elec-
tronic speed control that speeds the wiper blade near
the center of the glass, but slows the wiper blade
during directional reversals at each end of the wipe
pattern and during wiper blade off-the-glass parking
for quieter operation. The wiper motor transmission
converts the rotary output of the wiper motor to the
back and forth wiping motion of the rear wiper arm
and blade on the rear flip-up glass.
Fig. 15 Rear Wiper Motor
1 - SCREW (2)
2 - INSULATOR (2)
3 - BRACKET
4 - OUTPUT SHAFT
5 - SEAL
6 - CONNECTOR RECEPTACLE
7 - COVER
8 - MOTOR
KJREAR WIPERS/WASHERS 8R - 41
REAR WIPER BLADE (Continued)

REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the rear wiper arm from the rear
wiper motor output shaft. (Refer to 8 - ELECTRI-
CAL/REAR WIPERS/WASHERS/REAR WIPER ARM
- REMOVAL).
(3) Using a small thin-bladed tool, gently pry at
the notch in the base of the rear wiper motor output
shaft bezel to unsnap the nut cover from the bezel
(Fig. 16).Be certain to take proper precautions
to protect the outer tailgate panel and its paint
finish from damage during this procedure.
(4) Remove the nut that secures the rear wiper
motor output shaft to the outer swing gate panel
(Fig. 16).
(5) Remove the bezel and gasket from the rear
wiper motor output shaft.
(6) Remove the trim panel from the tailgate inner
panel. (Refer to 23 - BODY/SWING GATE/TRIM
PANEL - REMOVAL).
(7) Disconnect the tailgate wire harness connector
for the flip-up glass ajar switch from the flip-up glass
latch connector receptacle.
(8) Disconnect the tailgate wire harness connector
for the rear wiper motor from the motor connector
receptacle (Fig. 17).
(9) Loosen the two screws that secure the rear
wiper motor mounting bracket to the top of the tail-
gate inner panel.
(10) Slide the rear wiper motor and mounting
bracket back far enough to disengage the two mount-ing screws from the keyed slots in the top of the tail-
gate inner panel.
(11) Remove the rear wiper motor and mounting
bracket from the tailgate as a unit.
INSTALLATION
(1) Position the rear wiper motor and bracket into
the tailgate as a unit (Fig. 17).
(2) Insert the rear wiper motor output shaft
through the hole in the tailgate outer panel and
engage the two mounting screws into the keyed slots
in the top of tailgate inner panel.
(3) From the outside of the tailgate, center the
rear wiper motor output shaft in the tailgate outer
panel clearance hole and install the gasket and bezel
over the centered shaft (Fig. 16).
(4) Install and tighten the nut that secures the
rear wiper motor output shaft to the outer tailgate
panel. Tighten the nut to 5 N´m (43 in. lbs.).
(5) From the inside of the tailgate, tighten the two
screws that secure the rear wiper motor mounting
bracket to the top of the tailgate inner panel. Tighten
the screws to 6 N´m (57 in. lbs.).
(6) Reconnect the tailgate wire harness connector
for the rear wiper motor to the motor connector
receptacle.
Fig. 16 Rear Wiper Motor Output Shaft Nut
Remove/Install
1 - BEZEL AND GASKET
2 - OUTPUT SHAFT
3 - TAILGATE OUTER PANEL
4 - NUT
5 - NUT COVER
Fig. 17 Rear Wiper Motor Remove/Install
1 - KEYED SLOT (2)
2 - SWING GATE INNER PANEL
3 - SCREW (2)
4 - REAR WIPER MOTOR ELECTRICAL CONNECTOR
5 - REAR WIPER MOTOR
8R - 42 REAR WIPERS/WASHERSKJ
REAR WIPER MOTOR (Continued)

(7) Reconnect the tailgate wire harness connector
for the flip-up glass ajar switch to the flip-up glass
latch connector receptacle.
(8) Reinstall the trim panel onto the tailgate inner
panel. (Refer to 23 - BODY/SWING GATE/TRIM
PANEL - INSTALLATION).
(9) From the outside of the tailgate, press the nut
cover firmly and evenly over the rear wiper motor
output shaft bezel using hand pressure until it snaps
into place.
(10) Reinstall the rear wiper arm onto the rear
wiper motor output shaft. (Refer to 8 - ELECTRI-
CAL/REAR WIPERS/WASHERS/REAR WIPER ARM
- INSTALLATION).
(11) Reconnect the battery negative cable.
REAR WIPER/WASHER
SWITCH
DESCRIPTION
The rear 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 rear 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).
WIPER ARM PARK RAMP
REMOVAL
(1) Disengage the rear wiper arm support from the
wiper arm park ramp on the right side of the tailgate
just below the rear flip-up glass.(2) Lift the wiper arm and blade away from the
tailgate until the wiper arm hinge is in its over-cen-
ter position.
Remove the screw that secures the wiper arm park
ramp to the tailgate outer panel (Fig. 18).
(3) Remove the wiper arm park ramp from the
tailgate outer panel.
INSTALLATION
(1) Position the wiper arm park ramp onto the
tailgate outer panel (Fig. 18).
(2) Install and tighten the screw that secures the
wiper arm park ramp to the tailgate outer panel.
Tighten the screw to 5 N´m (45 in. lbs.).
(3) Lower the rear wiper arm and blade and place
the wiper arm support onto the wiper arm park
ramp.
Fig. 18 Wiper Arm Park Ramp Remove/Install
1 - SCREW (1)
2 - PARK RAMP
3 - RIVET NUT (1)
4 - TAILGATE OUTER PANEL
KJREAR WIPERS/WASHERS 8R - 43
REAR WIPER MOTOR (Continued)