Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Jeep Cherokee XJ 1988-1989.1993-1995 Approved 1994 XJ Jeep Cherokee 94XJ_8K

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94XJ_8K

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J WINDSHIELD WIPERS 8K - 1

WINDSHIELD WIPERS

CONTENTS
page page

WIPER CONTROL SWITCH REPLACEMENT . . 15 XJ .................................... 1
WIPER SWITCH TESTING . . . . . . . . . . . . . . . . 19 YJ .................................... 8

INDEX
page page
Diagnosing Rear Wiper . . . . . . . . . . . . . . . . . . . . . 6 Liftgate Wiper Switch Replacement . . . . . . . . . . . . 6
Diagnosing Rear Wiper Washer .............. 6 Rear Wiper/Washer Switch Testing . . . . . . . . . . . . 7
Diagnosing Windshield Washer (Intermittent) . . . . . 5 Torque Specifications XJ . . . . . . . . . . . . . . . . . . . . 7
Diagnosing Windshield Washer (Non-Intermittent) . 4 Washer Pump Replacement . . . . . . . . . . . . . . . . . 6
Diagnosing Windshield Wipers . . . . . . . . . . . . . . . 11 Washer Pump Replacement--Left Hand Drive . . . . 2
Front Wipers/Washers . . . . . . . . . . . . . . . . . . . . . . 1 Washer Pump Replacement--Right Hand Drive . . 3
Intermittent Wiper Module . . . . . . . . . . . . . . . . . . . 5
Liftgate Wiper . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Windshield Wiper Motor ................ ... . 2

FRONT WIPERS/WASHERS tance is used by the module to charge a capacitor,
which triggers the amount of delay between wipes.
GENERAL The wiper motor has an arrangement of brushes
Two-speed electric windshield wipers and electric providing the two wiper speeds. When the wipers are
washers are standard equipment. An optional inter- turned off, the park switch maintains current to the
mittent wiper system provides a pause between wipe motor until the wipers reach the park position on the
cycles for use during conditions of very light precipi- windshield.
tation. The park arm in the motor assembly is connected
The windshield wipers can be operated with the to the park switch and is driven by the motor. When
windshield wiper switch only when the ignition the wiper switch is turned off, current flows through
switch is in the ON or ACCESSORY position. A cir- the contact and the module to the motor until the
cuit breaker located in the fuse block protects the cir- wipers reach the park position.
cuitry of the wiper system.
CAUTION: The wiper arms and blades must not be
WIPERS moved manually from side to side or damage may
The standard windshield wiper circuit contains result.
three components; wiper/washer switch, motor, and
front washer pump. Both standard and intermittent WASHERS
circuits are the same, except that the intermittent With the washer switch ON, current flows through
circuit requires a module and delay resistance in the the washer pump to ground. The front washer pump
wiper switch. Both circuits receive battery feed from, runs as long as the driver holds the switch ON. On
and are protected by a 5.5 amp circuit breaker. standard wipers, the washer switch automatically
In the standard wiper circuit, the switch connects moves the wiper switch to LO when the washer is
the motor directly to battery feed for low and high turned on. On intermittent wipers, the wiper module
speed operation. In the intermittent circuit, the runs the wiper motor on LO. Turning the switch to
switch supplies battery feed to the intermittent wiper OFF stops the wipers.
module, which then supplies the motor. In the delay If the washer knob is depressed while the wiper
position, the module is connected with the variable switch is in the OFF position, the wiper control will
resistor in the wiper switch. The value of the resis- operate for approximately 3 wipes and automatically
turn OFF.
8K - 2 WINDSHIELD WIPERS J

WINDSHIELD WIPER MOTOR (3) Position cowl mounting bracket and install the
attaching nuts. Install pivot pin attaching screws.
REMOVAL Tighten the screws and nuts to 4 N m (35 in. lbs.)
(1) Remove wiper arm assemblies by lifting blade torque.
off windshield and pulling out on the tab (Fig. 1) to (4) Connect the wire harness.
lock wiper arm in UP position. (5) Connect the washer hose and install cowl trim
panel.
(6) Install the wiper arm assemblies and position
as shown (Fig. 3).

Fig. 1 Wiper Arm Removal
(2) Remove cowl trim panel. Disconnect the washer
hose. Remove the cowl mounting bracket attaching
nuts (Fig. 2) and pivot pin attaching screws.

Fig. 3 Windshield Wiper Arm Installation
WASHER PUMP REPLACEMENT--LEFT HAND
DRIVE
(1) Remove 2 washer reservoir attaching screws
(Fig. 4) and 1 nut (Fig. 5).

Fig. 2 Pivot Assembly Removal
(3) Disconnect wiring harness and remove the as-
sembly.
(4) Remove the plastic motor cover.
(5) Remove bolts and nuts holding motor to link-
age 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.

INSTALLATION
(1) Install motor to linkage. Fig. 4 Washer Reservoir Upper Attaching Screws
(2) Install wiper motor and linkage assembly into
the cowl cavity.
J WINDSHIELD WIPERS 8K - 3

(5) Reverse the removal procedure to install a new
pump(s).

WASHER PUMP REPLACEMENT--RIGHT HAND
DRIVE
(1) Remove 3 washer reservoir mounting screws
(Fig. 7).

Fig. 5 Washer Reservoir Lower Attaching Nut
(2) Disconnect hose from pump(s) (Fig. 6).

Fig. 7 Washer Reservoir and Pump
(2) Disconnect hose from pumps.
(3) Drain washer reservoir.
(4) Using a deep socket, remove filter nuts from
bottom inside of reservoir and remove pump.
(5) Reverse the removal procedures to install a
new pump.

DIAGNOSING WINDSHIELD WIPERS
(1) Remove in-line circuit breaker near fuse block
and turn ignition switch to ACCESSORY or ON.

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