ISUZU TROOPER 1998 Service Repair Manual

8B–2WIPER/WASHER SYSTEM
Service Precaution
WARNING: I F S O E Q U IPPED WITH A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS),
REFER TO THE SRS COMPONENT AND WIRING
LOCATION VIEW IN ORDER TO DETERMINE
WHETHER YOU ARE PERFORMING SERVICE ON OR
NEAR THE SRS COMPONENTS OR THE SRS
WIRING. WHEN YOU ARE PERFORMING SERVICE
ON OR NEAR THE SRS COMPONENTS OR THE SRS
WIRING, REFER TO THE SRS SERVICE
INFORMATION. FAILURE TO FOLLOW WARNINGS
COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.
Windshield Wiper/Washer System
General Description
The circuit consists of the starter switch, windshield wiper
& washer switch, windshield wiper motor, windshield
washer motor and windshield intermittent relay.When the wiper & washer switch is turned on with the
starter switch on, the battery voltage is applied to the
wiper motor to activate the wiper.
The washer motor squirts glass cleaning fluid while the
washer switch is being pushed. The intermittent relay is
used to control motion of the wiper.
Windshield Wiper And Washer Switch
Removal and Installation
Refer to the Lighting Switch (Combination Switch) in
Lighting System section.
Windshield Wiper Motor
Removal
1. Disconnect the battery ground cable.
2. Disconnect the connector.
3. Remove 4 mounting bolts.
4. Remove the windshield wiper motor(1).
880RW007
Installation
To install, follow the removal steps in the reverse order.

WIPER/WASHER SYSTEM8B–3
Windshield Washer Motor
Removal
1. Disconnect the battery ground cable.
2. Remove the fender inner liner (right side) (1).
3. Remove the screws and then remove the front
combination light(2).
4. Remove 2 screws, the filler neck and the hose.
5. Disconnect the windshield washer motor connector
and remove the washer tank (4).
6. Pull the windshield washer motor(3) from the washer
tank(4).
880RS006
Installation
To install, follow the removal steps in the reverse order.

8B–4WIPER/WASHER SYSTEM
Windshield Wiper Linkage
Windshield Wiper Linkage and Associated Parts
880RW008
Legend
(1) Windshield Wiper Arm/Blade
(2) Vent Cowl Cover(3) Windshield Wiper Linkage Assembly
(4) Windshield Wiper Motor
Removal
1. Disconnect the battery ground cable.
2. Remove the windshield wiper arm/blade.
3. Remove the windshield wiper motor.
4. Remove the pivot assembly mounting nuts, fixing
screws and then remove the vent cowl cover.
5. Take out the windshield wiper linkage assembly from
the opening of the cowl.
Installation
To install, follow the removal steps in the reverse order.

WIPER/WASHER SYSTEM8B–5
Windshield Wiper Arm/Blade
Removal
1. Pry the cap(2) off with the tip of a screwdriver.
2. Remove the nut(3).
3. Remove the wiper/blade(1).
880RS005
Installation
To install, follow the removal steps in the reverse order,
noting the following points.
880RS004
1. Wiper arm/blade

Before installing the wiper arm/blade to the shaft,
confirm that the motor stops at the auto-stop
position.

Set the wiper arm/blade so that the tips of both
blades are positioned about 35 mm (1.37 in) from
the upper edge of the cowl cover as shown in the
figure.

Tighten the nuts to the specified torque.
Torque: 31 N·m (3.2 kg·m/23 lb ft)

8B–6WIPER/WASHER SYSTEM
Windshield Wiper Blade Rubber
Removal
1. Push the wiper blade lock(1) while pulling the wiper
blade in the arrow direction as shown in the figure.
CAUTION: W h e n t h e w i p e r b l a d e h a s b e e n
removed, wrap the tip of the wiper arm with cloth, to
avoid damaging the glass.
880RS011
2. Pull the end of rubber and remove the projection(3)
from the click of the blade stay (2).
880RS010
3. Pull the rubber out in the same direction.
Installation
To install, follow the removal steps in the reverse order,
noting the following points.
1. Install the click of the blade stay in the groove of the
new rubber and slide it in. Complete wiper blade
installation by pushing the click.
885RS002
2. Finally, check that the click of the stay has caught in
the hole of the rubber.
885RS001

WIPER/WASHER SYSTEM8B–7
Rear Wiper/Washer System
General Description
The circuit consists of the starter switch, rear wiper &
washer switch, rear wiper motor, rear washer motor and
rear intermittent relay.When the wiper & washer switch is turned on with the
starter switch on, the battery voltage is applied to the
wiper motor to activate the wiper.
The washer motor squirts glass cleaning fluid while the
washer switch is being pushed. The intermittent relay is
used to control motion of the wiper.
Rear Wiper and Washer Switch
Removal
1. Disconnect the battery ground cable.
2. Remove the front console assembly(1).
Refer to the Instrument Panel Assembly in Body
Structure section.
3. Remove the lower cluster assembly(2).
Refer to the Instrument Panel Assembly in Body
Structure section.
4. Remove the instrument panel driver lower cover(3).
Refer to the Instrument Panel Assembly in Body
Structure section.
821RW024
5. Remove the instrument panel cluster assembly(4).
Refer to the Instrument Panel Assembly in Body
Structure section.
6. Disconnect the connector and push the lock from the
back side of the instrument panel cluster assembly to
remove the rear wiper & washer switch(5).
821RW023
Installation
To install, follow the removal steps in the reverse order,
noting the following point:
1. Push the switch with your fingers until it locks
securely.

8B–8WIPER/WASHER SYSTEM
Rear Wiper Motor
Removal
1. Disconnect the battery ground cable.
2. Remove the tailgate trim pad.
3. Remove the wiper arm/blade.
Refer to the removal steps of the Rear Wiper
Arm/Blade in this section.
4. Disconnect the connector remove the wiper shaft nut,
remove the fixing screws and then remove the rear
wiper motor(1).
885RS013
Installation
To install, follow the removal steps in the reverse order,
noting the following points.
1. Before installing the wiper arm/blade to the motor
shaft, confirm that the motor stops at the auto-stop
position.
2. Install the wiper arm so that the blade gets parallel to
the lowermost heat wire(2) of the rear defogger
(w/rear defogger), or position the blade 20 mm
(0.79 in) from edge of tailgate glass (W/O rear
defogger).
885RS012
885RS011
3. Tighten the motor shaft nut to the specified torque.
Torque: 6 N·m (0.6 kg·m/52 lb in)
4. Tighten the wiper arm nut to the specified torque.
Torque: 9 N·m (0.9 kg·m/78 lb in)

WIPER/WASHER SYSTEM8B–9
Alarm & Relay Control Unit
Removal
1. Disconnect the battery ground cable.
2. Remove the glove box.
3. Remove the instrument panel passenger lower cover
assembly.
4. Remove the passenger Knee bolster reinforcement
assembly.
5. Remove the fixing bolts, disconnect the connectors
and then remove the alarm & relay control unit (1).
826RW020
Installation
To install, follow the removal steps in the reverse order.
Rear Washer Motor
Removal
1. Disconnect the battery ground cable.
2. Remove the tailgate trim pad(2).
3. Remove two screws, disconnect the connector,
remove the washer hose and then remove the rear
washer tank(3).
4. Pull out the rear washer motor(1) from the washer
tank.
885RS009
Installation
To install, follow the removal steps in the reverse order.

8B–10WIPER/WASHER SYSTEM
Rear Wiper Arm/Blade
Removal
1. Remove the arm nut(2).
2. Remove the wiper arm/blade(1).
885RS008
Installation
Refer to the installation steps of the Rear Wiper Motor in
Wiper/Washer System section.
Rear Washer Nozzle
Removal
1. Disconnect the hose(3).
2. Remove the lock nut(2), and then remove the washer
nozzle(1).
885RS005
Installation
To install, follow the removal steps in the reverse order.
Rear Washer Nozzle Angle
Adjustment
Loosen the lock nut(2) of the washer nozzle(1) to adjust
the injection angle of the cleaning fluid, and then retighten
the lock nut(2).
885RS004

WIPER/WASHER SYSTEM8B–11
Rear Washer Spray Pattern
885RS003
Legend
(1) Washer Nozzle
(2) Spray Target
Rear Wiper Blade Rubber
Removal and Installation
Refer to the Windshield Wiper Blade Rubber in this
section.
Headlight Wiper/Washer
General Description
The circuit consists of the starter switch, headlight
wiper/washer switch, headlight wiper motor and washer
motor. By pushing the headlight wiper/washer switch with
the starter switch on, the wiper will make 5 strokes with
washer solution applied between each of the first 4
strokes, regardless of the length of time the switch is held
down.
The washer nozzle is installed to the wiper blade, and the
tank to which the washer motor is installed shared among
the headlight washer and the windshield washer.