alarm ISUZU TROOPER 1998 Service Repair Manual

COMPRESSOR OVERHAUL 1D Ð 3
solvent, and dried with dry air. Use only lint free
cloths to wipe parts.
The operations described below are based on
bench overhaul with compressor removed from the
car, except as noted. They have been prepared in
order of accessibility of the components. When the
compressor is removed from the car for servicing,
the oil remaining in the compressor should be
discarded and new refrigerant oil added to the
compressor.
Magnetic clutch assembly repair procedures require
that the system be discharged of refrigerant. (Refer
to Section 1B for ÒREFRIGERANT RECOVERYÓ.)
Compressor malfunction will appear in one of four
ways: noise, seizure, leakage or low discharge
pressure. Resonant compressor noises are not
cause for alarm; however, irregular noise or rattles
may indicate broken parts or excessive clearances
due to wear. To check seizure, de-energize the
magnetic clutch and check to see if the drive plate
can be rotated. If rotation is impossible, the
compressor is seized. Low discharge pressure may
be due to a faulty internal seal of the compressor,
or a restriction in the compressor. Low discharge
pressure may also be due to an insufficient
refrigerant charge or a restriction elsewhere in the
system. These possibilities should be checked prior
to servicing the compressor. If the compressor is
inoperative, but is not seized, check to see if current
is being supplied to the magnetic clutch coil
terminals.
The compressor has vanes built into a rotor which
is mounted on a shaft.
When the shaft rotates, the vanes built into the
cylinder block assembly are opened by centrifugal
force.
This changes the volume of the space formed by
the rotor and cylinder, resulting in the intake and
compression of the refrigerant gas. The discharge
valve and the valve stopper, which protects the
discharge valve, are built into the cylinder block
assembly. There is no suction valve but a shaft seal
is installed between the shaft and head; a trigger
valve, which applies back pressure to the vanes, is
installed in the cylinder block and a refrigerant gas
temperature sensor is installed in the front head.
The specified quantity of compressor oil is
contained in the compressor to lubricate the various
parts using the refrigerant gas discharge pressure.
6VD1 engine is equipped with an invariable
capacity five-vane rotary compressor (DKV-14D
Type).
The compressor sucks and compresses refrigerant
by the rotation of the vane installed to the shaft,
and always discharges a fixed amount of refrigerant
independent of the load of refrigerant.The thermo sensor is installed to the front head of
the compressor to protect it by stopping its
operation when the refrigerant gas is insufficient or
when the temperature get abnormally high.
·OFF ..... 160 ±5¡C (320.0 ±9.0¡F)
·ON ..... 135 ±5¡C (275.0 ±9.0¡F)
4JG2 Engine are provided with a swash plate type
compressor (DKS-15CH Type)
Swash plate compressors have a swash (slanted)
plate mounted on the shaft. When the shaft turns,
the rotation of the swash plate is converted to
reciprocating piston motion which sucks in and
compresses the refrigerant gas.
Shaft seal (Lip type) is installed between the valve
plate and shaft & cylinder head to prevent
refrigerant gas leaks. A specified amount of
compressor oil is contained in the oil pan.
This oil is supplied to the cylinders, bearings, etc.,
by an oil pump which is connected to the swash
plate shaft.
With some compressors the differential between
the intake pressure and discharge pressure
generated while the compressor is operating is
used for lubrication instead of an oil pump.
Three pistons are arranged at 120g intervals around
the center of the swash plate shaft. These pistons
are connected to the ends of the swash plate
through shoe disks and balls.
The rotation of the swash plate causes
reciprocating movement of the piston inside the
cylinders, with each piston operating as two
cylinders. Because of that, the compressor operates
as though it has 6 cylinders.
The specified amount of the compressors oil is
150cc (4.2 Imp fl oz).
Also, compressor oil to be used varies according to
the compressor model. Be sure to avoid mixing two
or more different types of oil.
If the wrong oil is used, lubrication will be poor and
the compressor will seize or malfunction.

4B2±7 DRIVE LINE CONTROL SYSTEM (TOD)
Check Lamp
Inform the following items.

Bulb check

Fail (fail alarm)

Trouble code

Diesel/gasoline MAP
821RW078
TOD ECU
This control unit is mounted to the front right hand seat via
a special bracket.
F07RW029

WIPER/WASHER SYSTEM8B–1
WIPER / WASHER SYSTEM
CONTENTS
Service Precaution 8B–2. . . . . . . . . . . . . . . . . . . . . .
Windshield Wiper/Washer System 8B–2. . . . . . . . .
General Description 8B–2. . . . . . . . . . . . . . . . . . . . .
Windshield Wiper And Washer Switch 8B–2. . . . .
Removal and Installation 8B–2. . . . . . . . . . . . . . .
Windshield Wiper Motor 8B–2. . . . . . . . . . . . . . . . . .
Removal 8B–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8B–2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Washer Motor 8B–3. . . . . . . . . . . . . . . .
Removal 8B–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8B–3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wiper Linkage 8B–4. . . . . . . . . . . . . . . .
Windshield Wiper Linkage and
Associated Parts 8B–4. . . . . . . . . . . . . . . . . . . . . .
Removal 8B–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8B–4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wiper Arm/Blade 8B–5. . . . . . . . . . . . . .
Removal 8B–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8B–5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wiper Blade Rubber 8B–6. . . . . . . . . . .
Removal 8B–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8B–6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Wiper/Washer System 8B–7. . . . . . . . . . . . . .
General Description 8B–7. . . . . . . . . . . . . . . . . . . . .
Rear Wiper and Washer Switch 8B–7. . . . . . . . . . .
Removal 8B–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8B–7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Wiper Motor 8B–8. . . . . . . . . . . . . . . . . . . . . . .
Removal 8B–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8B–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . Alarm & Relay Control Unit 8B–9. . . . . . . . . . . . . . .
Removal 8B–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8B–9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Washer Motor 8B–9. . . . . . . . . . . . . . . . . . . . . .
Removal 8B–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8B–9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Wiper Arm/Blade 8B–10. . . . . . . . . . . . . . . . . . .
Removal 8B–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8B–10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Washer Nozzle 8B–10. . . . . . . . . . . . . . . . . . . . .
Removal 8B–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8B–10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Washer Nozzle Angle Adjustment 8B–10. . .
Rear Wiper Blade Rubber 8B–11. . . . . . . . . . . . . . . .
Removal and Installation 8B–11. . . . . . . . . . . . . . .
Headlight Wiper/Washer 8B–11. . . . . . . . . . . . . . . . .
General Description 8B–11. . . . . . . . . . . . . . . . . . . . .
Headlight Wiper and Washer Switch 8B–12. . . . . . .
Removal 8B–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8B–12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight Wiper Arm & Blade 8B–13. . . . . . . . . . . . .
Removal 8B–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8B–13. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight Wiper Motor 8B–13. . . . . . . . . . . . . . . . . . .
Removal 8B–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8B–13. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight Washer Motor 8B–14. . . . . . . . . . . . . . . . .
Removal and Installation 8B–14. . . . . . . . . . . . . . .
Main Data and Specifications 8B–14. . . . . . . . . . . . .

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.

WIRING SYSTEM 8DÐ57
Circuit Diagram (6V
*1) Ð 3
A
B
3.0
B/Y3.0
B/Y
3.0
B/Y3.0
B/Y3.0
W/G3.0
B/R
3.0
B/R 3.0
B/Y
0.5
R/B
HAZARD
WARNING
SW
(8)PCM
MAIN
RELAY
(1)IGNITION
COILMETER STARTER
RELAY
(6)SEAT
HEATERWINDSHIELD
WIPER
MOTORRR
WIPER
MOTORHEADLIGHT
WIPER
MOTOR
AC GENERATOR
(IG) ALARM & RELAY
CONTROL UNIT C-3 10A
TURN
BACK
0.5
L/WC-4 10A
ELEC.
IGN.
0.5
L/YC-10 10A
METER
GAUGE
0.5
W/RC-1 10A
STARTER
RELAY
0.85
W/LC-5 15A
FRT WIPER
& WASHERC-6 10A
RR WIPER
& WASHERC-7 10A
H/LAMP
WIPER
FUSE BOX
1.25
B/OC-9 15A
IG COIL C-8 15A
ENGINE
0.5
L/B
0.85
B/Y
0.85
B/Y
0.5
R
0.75
B/R
SDM
(12)C-21 10A
SRS
C
1.25
G/RC-2 15A
SEAT
HEATER
H-631
3
H-63

D08RWB15

WIRING SYSTEM 8DÐ237
Dome Light, Luggage Room Light,
Courtesy Light and Map Light
General Description
This circuit consists of the starter switch, door
switch, dome light, luggage room light, courtesy
light, map light, and alarm & relay control unit.
The dome light lights up when any one of doors
except the tailgate is opened with the switch set at
the door mode.
The courtesy lights for the front doors are controlled
by front door switchÐLH.
The luggage room light illuminates by opening the
tailgate when the switch is set at the door mode.
The map light illuminates by turning the switch on.
All these lights light up by turning on respective
switches regardless of the position of the starter
switch key.
The buzzer in the alarm & relay control unit sounds
to remind the driver to turn off the lights when the
starter switch is turned off.

8DÐ238 WIRING SYSTEM
Circuit Diagram (RHD)-1
TAIL
RELAY
(4)
MAP
LIGHT
5.0
W
0.5
R/W
0.5
R/W
0.5
R/W
0.5
R/W C-16 10A
CLOCK(B), ROOMBATT. (+)
STARTER SW
(IG1)
3.0
B/Y
C-4 10A
ELEC. IGN
0.5
R/Y
LUGGAGE
ROOM
LIGHT
1
R-82R-6
16H-32
1
L-2
R-63
H-217
A
TAIL
GATE SW
0.5
B
1.25
B
BODY-RRR-3R-6
0.5
R/W
0.5
GR/W0.5
R/W
1D-18
10H-18
14H-46
4
B-62
B-6
ALARM & RELAY CONTROL UNIT
1
B-610
B-64H-15
D-18
2
FRT
COURTESY
LIGHT-LH
0.5
GR/R0.5
GR/W
0.85
G/R 0.5
GR/W
R-21
FRT DOOR
SW-LH
0.5
GR/W0.5
R/W0.5
R/W
0.5
R/W0.5
L/W 1 2
D-7
10H-22D-7
2H-22 2
H-18
FRT
COURTESY
LIGHT-RH
0.5
GR/W
D08RW781

WIRING SYSTEM 8DÐ239
Circuit Diagram (RHD)-2
0.5
GR/G0.5
GR/G0.5
GR/G0.5
GR/G0.5
R 0.5
R/W
0.5
R/W
DOME
LIGHT
(W/O TIMER)
5
B-65H-21
9
0.85
B
2.0
B0.5
GR/W
FRT
DOOR SW
-RHRR
DOOR SW
-LHRR
DOOR SW
-RH
0.5
GR/R
0.5
GR/B
0.5
GR/B 0.5
GR/B
2.0
B
B-71L-3
DOME
LIGHT
(W/ TIMER)4
H-45
2S-1S-1
1H-455
L-3
2A
A
ON
DOOROFF
B-2
B-18
BODY-LH BODY-RH2.0
B
B-26
BODY-CTR
K-21
3
B-6ALARM & RELAY CONTROL UNIT
ALARM & RELAY CONTROL UNIT
5
H-47
R-11
R-111
6
B-6
11H-32
D08RW780

8DÐ240 WIRING SYSTEM
Parts Location (RHD)
Legend
(1) S-1, L-3 (W/O Sun Roof)
(2) R-6
(3) R-8
(4) R-1
(5) R-3
(6) R-2
(7) H-32, H-46
(8) Alarm and Relay control Unit
(9) B-6, B-7
(10) B-2
(11) H-18
(12) D-18
(13) H-21(14) H-45
(15) H-47
(16) D-7
(17) B-11
(18) H-22
(19) B-18
(20) Relay and Fuse Box
(21) Fuse Box
(22) H-25, H-26
(23) K-2
(24) R-11
(25) L-2
(26) B-26
2
3
4
5
6
7
8
911
15
1617
18
19
20
21
22
23
24
25
12
1026
1314
1
D08RW653

WIRING SYSTEM 8DÐ241
Circuit Diagram (LHD)-1
TAIL
RELAY
(4)
MAP
LIGHT
5.0
W
0.5
R/W
0.5
R/W
0.5
R/W
0.5
R/W C-16 10A
CLOCK(B), ROOMBATT. (+)
STARTER SW
(IG1)
3.0
B/Y
C-4 10A
ELEC. IGN
0.5
R/Y
LUGGAGE
ROOM
LIGHT
1
R-82R-6
16H-32
1
L-2
R-63
H-217
A
TAIL
GATE SW
0.5
B
1.25
B
BODY-RRR-3R-6
0.5
R/W
0.5
GR/W0.5
R/W
1D-18
10H-18
5H-47
4
B-62
B-6
ALARM & RELAY CONTROL UNIT
1
B-610
B-64H-15
D-18
2
FRT
COURTESY
LIGHT-LH
0.5
GR/R0.5
GR/W
0.85
G/R 0.5
GR/W
K-21
FRT DOOR
SW-RH
0.5
GR/W0.5
R/W0.5
R/W
0.5
R/W0.5
L/W 1 2
D-7
10H-22D-7
2H-22 2
H-18
FRT
COURTESY
LIGHT-RH
0.5
GR/W
D08RW812