1995 JEEP YJ service

WIPER AND WASHER SYSTEMS
CONTENTS
page page
DIAGNOSIS - XJ......................... 3
DIAGNOSIS - YJ........................ 12
GENERAL INFORMATION - XJ.............. 1GENERAL INFORMATION - YJ............. 10
SERVICE PROCEDURES - XJ............... 6
SERVICE PROCEDURES - YJ.............. 17
GENERAL INFORMATION - XJ
Following are general descriptions of the major
components in the XJ (Cherokee) wiper and washer
systems. Refer to Group 8W - Wiring Diagrams for
complete circuit descriptions and diagrams.
WINDSHIELD WIPER SYSTEM
A two-speed wiper system is standard equipment
on all left-hand drive XJ models. An optional inter-
mittent wipe system is available. The intermittent
wipe system is standard equipment on all right-hand
drive XJ models. The two-speed wiper system allows
the driver to select from two wiper speeds. The inter-
mittent wipe system allows the driver to select from
two wiper speeds or an intermittent wipe feature
that allows a delay between wipes of 2 to 15 seconds.
Refer to the owner's manual for more information on
wiper system controls and operation.
The wipers will operate only when the ignition
switch is in the ACCESSORY or ON position. A cir-
cuit breaker near the fuseblock module protects the
circuitry of the wiper system on left-hand drive mod-
els. The circuit breaker is in the fuseblock module on
right-hand drive models.
WINDSHIELD WASHER SYSTEM
A electrically-operated windshield washer system is
standard equipment on all XJ models. The washers will
operate only when the ignition switch is in the ACCES-
SORY or ON position. A circuit breaker near the fuse-
block module protects the circuitry of the washer
system. Refer to the owner's manual for more informa-
tion on washer system controls and operation.
LIFTGATE WIPER/WASHER SYSTEM
A liftgate wiper/washer system is an available op-
tion on XJ models. The liftgate wiper is a fixed cycle
intermittent wipe system. A single switch on the in-
strument panel controls both the liftgate wiper and
washer functions. These systems will operate only
when the ignition switch is in the ON position. Fuse
1 in the fuseblock module protects the circuitry ofboth the liftgate wiper and washer. Refer to the own-
er's manual for more information on liftgate wiper/
washer system controls and operation.
WIPER ARMS, BLADES, AND ELEMENTS
All XJ models have two 18-inch windshield wiper
blades with replaceable rubber elements (squeegees).
Models with the liftgate wiper option use a single 12-
inch wiper blade with a replaceable rubber element
(squeegee).
Caution should be exercised to protect the rubber
squeegees from any petroleum-based cleaners or con-
taminants, which will rapidly deteriorate the squee-
gee rubber. If squeegees are damaged, worn or
contaminated they must be replaced.
Wiper squeegees exposed to the weather for a long
time tend to lose their wiping effectiveness. Periodic
cleaning of the squeegees is suggested to remove de-
posits of salt and road film. The wiper blades, arms
and windshield or liftgate glass should be cleaned
with a sponge or cloth and a mild detergent or non-
abrasive cleaner. If the squeegees continue to streak
or smear, they should be replaced.
The blades are mounted to spring-loaded wiper
arms. Spring tension of the wiper arms controls the
pressure applied to the blades on the glass. The
windshield wiper arms are attached by an integral
latch to the two wiper pivots on the cowl grille panel
at the base of the windshield. The liftgate wiper arm
is attached by an integral latch directly to the lift-
gate wiper motor output shaft on the liftgate panel.
The wiper arms and blades can not be adjusted or re-
paired. If faulty, they must be replaced.
WIPER LINKAGE AND PIVOTS
The wiper pivots are fastened to the cowl top panel
with screws beneath the cowl cover/grille panel. Each
pivot assembly can be replaced by removing the cowl
grille panel, unsnapping the linkage bushing(s) from
the pivot crank arm pins, and removing the mount-
ing screws.
JWIPER AND WASHER SYSTEMS 8K - 1

The two pivot cranks are joined by a connecting link,
and a drive link connects the motor crank to the drive
link near the left pivot. Pressed-in plastic bushings in
the ends of the links can be replaced if worn or dam-
aged.
WINDSHIELD WIPER MOTOR
The two-speed permanent magnet wiper motor has
an integral transmission and park switch. The motor
is mounted to the engine side of the cowl panel with
a reinforcement/stud plate and a rubber-isolated
mounting bracket. The wiper motor output shaft
passes through the cowl panel into the cowl plenum
area, where a crank arm attached to the output shaft
drives the wiper drive link.
Wiper speed is controlled by current flow to the ap-
propriate set of brushes. The wiper motor completes
its wipe cycle when the switch is turned OFF, and
parks the blades in the lowest portion of the wipe
pattern. The wiper motor assembly can not be re-
paired. If faulty, the entire motor assembly must be
replaced. The crank arm, mounting bracket, and re-
inforcement/stud plate are available for service.
LIFTGATE WIPER MOTOR
The liftgate wiper motor contains integral elec-
tronic controls and a transmission to provide three
operating modes:
²intermittent wipe with a fixed 5 to 8 second delay
between wipes
²constant wipe that operates when the liftgate
washer is operated
²a park mode that runs the motor until the wiper
blade reaches the park position after the liftgate
wiper switch or ignition switch is turned OFF.
The liftgate wiper motor can not be repaired. If
faulty, the entire assembly must be replaced.
WINDSHIELD WIPER/WASHER SWITCH
Controls for the windshield wiper and washer sys-
tems are contained in the multi-function switch con-
trol lever. The multi-function switch is mounted on
the left side of the steering column between the
steering wheel and the instrument panel. This switch
also controls many other functions. The multi-func-
tion switch can not be repaired. If any function of the
switch is faulty, the entire switch must be replaced.
LIFTGATE WIPER/WASHER SWITCH
The single two-function switch on the instrument
panel right of the steering column controls the lift-
gate wiper and washer functions. The rocker-type
switch features a detent in the WIPE position, but
only momentary contact in the WASH position. Both
the liftgate wiper and liftgate washer motors will op-
erate continuously for as long as the switch is held in
the WASH position. The switch can not be repaired;
if faulty, it must be replaced.
INTERMITTENT WIPE MODULE
In addition to low and high speed, the optional inter-
mittent wipe system has a delay mode. The delay mode
has a range of 2 to 15 seconds. The length of the delay
is selected with a variable resistor in the wiper (multi-
function) switch and is accomplished by electronic cir-
cuitry within the intermittent wipe module. If the
washer knob is depressed while the wiper (multi-func-
tion) switch is in the OFF position, the intermittent
wipe module will operate the wiper motor for approxi-
mately 2 wipes and automatically turn the motor off.
The intermittent wipe module is mounted to the
lower instrument panel, behind the knee blocker and
near the steering column with a hook and loop fas-
tener patch. The module can not be repaired.
WINDSHIELD WASHER NOZZLES
The two fluidic washer nozzles are riveted into
openings in the cowl grille panel below the wind-
shield and are not adjustable. Washer fluid is fed to
the nozzles through hoses clipped to the underside of
the cowl grille panel. The nozzles can not be repaired
and, if faulty, should be replaced.
LIFTGATE WASHER NOZZLE
The single liftgate washer nozzle snaps into place
on the liftgate wiper arm. Washer fluid is fed to the
nozzle from the washer reservoir in the engine com-
partment. A liftgate washer hose system is routed
through the body of the vehicle with the body wiring
harness from the reservoir to the liftgate. The fluid
passes through a nipple on the liftgate wiper motor
output shaft bezel to a hose clipped to the underside
of the wiper arm. The nozzle can not be repaired and,
if faulty, should be replaced.
WASHER RESERVOIR
The washer solvent reservoir is mounted to the left
front inner fender shield near the cowl panel. The
same reservoir is used for both the standard front
and optional liftgate washer systems. It also has a
provision for a low washer fluid level sensor. Refer to
Group 8E - Instrument Panel and Gauges for diagno-
sis and service of the sensor. The reservoir and filler
cap are available for service.
WASHER PUMPS
The washer pump and motor are press-fit into a
rubber grommet near the bottom of the washer res-
ervoir. Vehicles with the optional liftgate wiper/
washer system have two pumps installed in the
single reservoir. A permanently lubricated and sealed
motor is coupled to a rotor-type pump. Washer fluid
is gravity fed from the reservoir to the pump. The
pump then pressurizes the fluid and forces it through
the plumbing to the nozzles when the motor is ener-
gized. The pump and motor can not be repaired. If
faulty, the entire assembly must be replaced.
8K - 2 WIPER AND WASHER SYSTEMS - XJJ

WINDSHIELD WASHER SYSTEM
WITH NON-INTERMITTENT WIPE
(1) Unplug washer pump connector. Measure resis-
tance between terminal B at pump and a clean chas-
sis ground. Meter should read zero ohms. If not OK,
repair open to ground.
(2) Turn ignition switch to ACCESSORY and
washer (multi-function) switch to ON.
(a) Measure voltage at washer pump connector
terminal A. Meter should read battery voltage. If
OK, replace washer pump. If not OK, go to next
step.
(b) Measure voltage at wiper/washer switch con-
nector terminal B. Meter should read battery volt-
age. If OK, repair open to washer pump. If not OK,
replace switch.
WITH INTERMITTENT WIPE
(1) Unplug washer pump connector. Measure resis-
tance between terminal B at pump and a clean chas-
sis ground. Meter should read zero ohms. If not OK,
repair open to ground.
(2) Turn ignition switch to ACCESSORY and
washer (multi-function) switch to ON.
(a) Measure voltage at intermittent wipe module
switch connector terminal B (pink wire). Meter
should read battery voltage. If not OK, replace
wiper switch.
(b) Measure voltage at wipe module motor con-
nector terminal B (brown wire). Meter should read
battery voltage. If not OK, replace module.
(c) Measure voltage at washer pump connector
terminal A at pump. Meter should read battery
voltage. If OK, replace pump. If not OK, repair
open from wipe module.
WINDSHIELD WIPER/WASHER SWITCH
Use an ohmmeter to test for continuity (no resis-
tance) between the terminals of the switch as shown
in the Multi-Function Switch Continuity chart (Fig. 2
or 3).
INTERMITTENT WIPE MODULE
The intermittent wipe module is non-serviceable.
Refer to Group 8W - Wiring Diagrams for more infor-
mation.
The intermittent wipe module is attached to the
lower instrument panel cover near the steering col-
umn with a hook and loop fastener patch.
LIFTGATE WIPER SYSTEM
(1) Remove and inspect fuse 1. Replace faulty fuse,
if required.
(2) Turn ignition switch to ACCESSORY and lift-
gate wiper switch to WASH.(a) Measure voltage at liftgate wiper switch ter-
minal B. Meter should read battery voltage. If not
OK, repair open to fuse 1.
(b) Measure voltage at liftgate wiper switch ter-
minals A, C and D. Meter should read battery volt-
age. If not OK, replace switch.
(3) Turn ignition switch to ACCESSORY, place lift-
gate wiper switch in WIPE. Measure voltage at lift-
Fig. 2 Multi-Function Switch Continuity (Two-Speed
Wipers)
Fig. 3 Multi-Function Switch Continuity (Intermittent
Wipe)
8K - 4 WIPER AND WASHER SYSTEMS - XJJ

SERVICE PROCEDURES - XJ
WINDSHIELD WIPER MOTOR REMOVE/INSTALL
(1) Remove wiper arm assemblies by lifting blade
off windshield and pulling out on the tab (Fig. 4) to
lock wiper arm in up position.
(2) Remove cowl trim panel. Disconnect the washer
hose. Remove the cowl mounting bracket attaching
nuts (Fig. 5) and pivot pin attaching screws.
(3) Disconnect wiring harness and remove the as-
sembly.
(4) Remove the plastic motor cover.
(5) Remove bolts and nuts holding motor to linkage
and remove motor.
The wiper motor is shrouded in a protective
rubber boot. Care should be taken not to punc-
ture the boot during removal or installation.
(6) Reverse removal procedures to install. Tighten
wiper motor screws and nuts to 4 Nzm (35 in. lbs.)
torque. Install wiper arms and position as shown in
Fig. 6.
LIFTGATE WIPER MOTOR REMOVE/INSTALL
(1) Remove the wiper arm assembly from the pivot
pin by depressing the tab (Fig. 7) and pulling
straight out.
(2) Slide clip along hose until clip is off hose
mounting.
(3) Disconnect the washer hose.
(4) Remove pivot pin retaining nut (Fig. 8).
(5) Remove external bezel and seal.
(6) Remove the liftgate interior trim panel.
(7) Disconnect the wiper motor at the wiring har-
ness.
Fig. 4 Wiper Arm Remove
Fig. 5 Pivot Assembly Remove
Fig. 6 Windshield Wiper Arms Install
Fig. 7 Liftgate Wiper Arm Remove/Install
8K - 6 WIPER AND WASHER SYSTEMS - XJJ

GENERAL INFORMATION - YJ
Following are general descriptions of the major
components in the YJ (Wrangler) wiper and washer
systems. Refer to Group 8W - Wiring Diagrams for
complete circuit descriptions and diagrams.
WINDSHIELD WIPER SYSTEM
A two-speed wiper system is standard equipment
on all YJ models. An optional intermittent wipe sys-
tem is available. The standard system allows the
driver to select from two wiper speeds. The optional
intermittent wipe system allows the driver to select
from two wiper speeds or an intermittent wipe fea-
ture that allows a delay between wipes of 2 to 15 sec-
onds. Refer to the owner's manual for more
information on wiper system controls and operation.
The wipers will operate only when the ignition
switch is in the ACCESSORY or ON position. A cir-
cuit breaker in the fuseblock module protects the cir-
cuitry of the wiper system.
WINDSHIELD WASHER SYSTEM
A electrically-operated windshield washer system is
standard equipment on all YJ models. The washers
will operate only when the ignition switch is in the
ACCESSORY or ON position. A circuit breaker in the
fuseblock module protects the circuitry of the washer
system. Refer to the owner's manual for more infor-
mation on washer system controls and operation.
LIFTGATE WIPER/WASHER SYSTEM
A liftgate wiper/washer system is an available op-
tion on YJ models equipped with the optional hard-
top. The liftgate wiper is a fixed cycle wipe system. A
single switch on the instrument panel controls both
the liftgate wiper and washer functions. These sys-
tems will operate only when the ignition switch is in
the ON position. Fuse 1 in the fuseblock module pro-
tects the circuitry of both the liftgate wiper and
washer. Refer to the owner's manual for more infor-
mation on liftgate wiper/washer system controls and
operation.
WIPER ARMS, BLADES, AND ELEMENTS
All YJ models have two 12-inch windshield wiper
blades with replaceable rubber elements (squeegees).
Models with the liftgate wiper option use a single 16-
inch wiper blade with a replaceable rubber element
(squeegee).
Caution should be exercised to protect the rubber
squeegees from any petroleum-based cleaners or con-
taminants, which will rapidly deteriorate the squee-
gee rubber. If squeegees are damaged, worn or
contaminated they must be replaced.
Wiper squeegees exposed to the weather for a long
time tend to lose their wiping effectiveness. Periodiccleaning of the squeegees is suggested to remove de-
posits of salt and road film. The wiper blades, arms
and windshield or liftgate glass should be cleaned
with a sponge or cloth and a mild detergent or non-
abrasive cleaner. If the squeegees continue to streak
or smear, they should be replaced.
The blades are mounted to spring-loaded wiper
arms. Spring tension of the wiper arms controls the
pressure applied to the blades on the glass. The
windshield wiper arms are attached by an integral
latch to the two wiper pivots on the windshield frame
at the base of the windshield. The liftgate wiper arm
is attached by an integral latch directly to the lift-
gate wiper motor output shaft on the liftgate glass.
The wiper arms and blades can not be adjusted or re-
paired. If faulty, they must be replaced.
WIPER LINKAGE AND PIVOTS
The wiper pivots are fastened to the windshield
frame with nuts. The pivots and linkage are serviced
through access holes in the interior side of the lower
windshield frame. The two pivots and their connect-
ing link are serviced as a unit. The drive link, which
connects the motor crank arm to the left pivot, is ser-
viced separately.
WINDSHIELD WIPER MOTOR
The two-speed permanent magnet wiper motor has
an integral transmission and park switch. The motor
is mounted to a cover plate on the interior side of the
lower windshield frame. The wiper motor output
shaft passes through a gasket and the cover plate
into the space between the inner and outer lower
windshield frame, where the crank arm attached to
the output shaft drives the wiper drive link.
Wiper speed is controlled by current flow to the ap-
propriate set of brushes. The wiper motor completes
its wipe cycle when the switch is turned OFF, and
parks the blades in the lowest portion of the wipe
pattern. The wiper motor assembly can not be re-
paired. If faulty, the entire motor assembly must be
replaced. The cover plate, gasket and drive link to
crank arm retaining ring are available for service.
LIFTGATE WIPER MOTOR
The liftgate wiper motor operates in three modes:
²constant wipe that operates when the liftgate
wiper/washer switch is placed in the Wipe position
²constant wipe that operates when the liftgate
washers are operated
²a park mode that runs the motor until the wiper
blade reaches the park position after the liftgate
wiper switch or ignition switch is turned OFF.
8K - 10 WIPER AND WASHER SYSTEMS - YJJ

The liftgate wiper motor can not be repaired. If
faulty, the entire assembly must be replaced.
WINDSHIELD WIPER/WASHER SWITCH
Controls for the windshield wiper and washer sys-
tems are contained in the turn signal switch lever.
The turn signal switch lever is mounted on the left
side of the steering column between the steering
wheel and the instrument panel. The wiper/washer
switch can not be repaired. If any function of the
switch is faulty, the entire switch must be replaced.
LIFTGATE WIPER/WASHER SWITCH
The single two-function switch on the instrument
panel right of the steering column controls the lift-
gate wiper and washer functions. The rocker-type
switch features a detent in the WIPE position, but
only momentary contact in the WASH position. Both
the liftgate wiper and liftgate washer motors will op-
erate continuously for as long as the switch is held in
the WASH position. The switch can not be repaired;
if faulty, it must be replaced.
INTERMITTENT WIPE MODULE
In addition to low and high speed, the optional in-
termittent wipe system has a delay mode. The delay
mode has a range of 2 to 15 seconds. The length of
the delay is selected with a variable resistor in the
wiper switch and is accomplished by electronic cir-
cuitry within the intermittent wipe module. If the
washer knob is depressed while the wiper switch is
in the OFF position, the intermittent wipe module
will operate the wiper motor for approximately 2
wipes and automatically turn the motor off.
The intermittent wipe module is mounted to a
bracket behind the lower instrument panel, near the
steering column with a hook and loop fastener patch.
The module can not be repaired.
WINDSHIELD WASHER NOZZLES
The two fluidic washer nozzles are screwed into
openings in the cowl panel below the windshield and
are not adjustable. Washer fluid is fed to the nozzles
through hoses underneath the cowl panel. The noz-
zles can not be repaired and, if faulty, should be re-
placed.
LIFTGATE WASHER NOZZLE
The single liftgate washer nozzle is installed
through the liftgate glass and secured with a nut on
the inside of the glass. Washer fluid is fed to the noz-
zle from the washer reservoir in the engine compart-
ment. A liftgate washer hose system is routed
through the body of the vehicle with the body wiring
harness from the reservoir to the liftgate. The nozzle
can not be repaired and, if faulty, should be replaced.
WASHER RESERVOIR
The washer solvent reservoir is mounted with a
bracket to the left front inner fender shield near the
cowl panel. The same reservoir is used for both the
standard front and optional liftgate washer systems.
The reservoir and filler cap are available for service.
WASHER PUMPS
The washer pump and motor are press-fit into a
rubber grommet near the bottom of the washer res-
ervoir. Vehicles with the optional liftgate wiper/
washer system have two pumps installed in the
single reservoir. A permanently lubricated and sealed
motor is coupled to a rotor-type pump. Washer fluid
is gravity fed from the reservoir to the pump. The
pump then pressurizes the fluid and forces it through
the plumbing to the nozzles when the motor is ener-
gized. The pump and motor can not be repaired. If
faulty, the entire assembly must be replaced.
JWIPER AND WASHER SYSTEMS - YJ 8K - 11

SERVICE PROCEDURES - YJ
WINDSHIELD WIPER BLADE REMOVE/INSTALL
(1) Rotate the wiper blade release (Fig. 3) clock-
wise. This will release the wiper blade from the pivot
pin.
CAUTION: Take care to ensure that the wiper arm
does not strike the windshield after the wiper blade
has been removed.
(2) To install, place the blade assembly on the
wiper arm and snap the blade assembly into position.
WINDSHIELD WIPER ARM REMOVE/INSTALL
(1) Pull the wiper arm forward.
(2) Insert an ice pick type tool into the hole (Fig.
4).
(3) Grasp the wiper arm above the pivot nut.
(4) Pull and remove the wiper arm assembly.
(5) To install, push the wiper arm over the pivot
shaft. Be sure the pivot shaft is in the park position
and the wiper arm is positioned correctly on the
windshield (Fig. 5).
LIFTGATE WIPER ARM REMOVE/INSTALL
(1) Install wiper arm remover, Snap On A192 or
equivalent, on wiper arm (Fig. 6). Lift arm and then
remove from pivot shaft.
CAUTION: Do not use a screwdriver or other pry-
ing tool to remove an arm. This may distort it in a
way that will allow it to come off the pivot shaft in
the future despite how carefully it is installed.
NEVER push or bend the spring clip in the base of
the arm in an attempt to release the arm. This clip
is self releasing.(2) Reverse removal procedures to install.
(3) Wet the liftgate glass and check the park posi-
tion by operating the wiper motor several times.
WINDSHIELD WIPER LINKAGE AND PIVOTS
REMOVE/INSTALL
(1) Remove the left and right wiper arms.
Fig. 3 Wiper Blade Remove/Install
Fig. 4 Windshield Wiper Arm Remove/Install
Fig. 5 Windshield Wiper Arm Indexing
JWIPER AND WASHER SYSTEMS - YJ 8K - 17

LAMPS
CONTENTS
page page
BULB APPLICATIONÐXJ VEHICLES......... 18
GENERAL INFORMATION.................. 1INTERIOR LAMPS....................... 16
SERVICE PROCEDURES................... 6
GENERAL INFORMATION
Each vehicle is equipped with various lamp assem-
blies. A good ground is necessary for proper lighting
operation. Grounding is provided by the lamp socket
when it comes in contact with the metal body, or
through a separate ground wire.
When changing lamp bulbs check the socket for
corrosion. If corrosion is present, clean it with a wire
brush and coat the inside of the socket lightly with
Mopar Multi-Purpose Grease or equivalent.
DIAGNOSTIC PROCEDURESÐXJ
When a vehicle experiences problems with the
headlamp system, verify the condition of the batteryconnections, charging system, headlamp bulbs, wire
connectors, relay, high beam dimmer switch and
headlamp switch. Refer to Group 8W, Wiring Dia-
grams for component locations and circuit informa-
tion.
Always begin any diagnosis by testing all of the
fuses and circuit breakers in the system. Refer to
Group 8W, Wiring Diagrams.
JLAMPS 8L - 1