1998 ISUZU TROOPER heater

8D – 364 WIRING SYSTEM
Power Door Mirror
General Description
The circuit consists of door mirror control switch,
folding switch, defogger switch and door mirrors on
both sides.
When control switch is operated with starter switch at
either “ACC” or “ON” position, motors incorporated
in door mirrors on both sides rotates to allow the
horizontal and vertical adjustment of mirror angle.
Folding switch can be used to fold mirror and return
it to its original position.
When turning on door mirror defogger switch with
starter switch at “ON” position, built–in heater in
mirror is activated to perform defogger function.

WIRING SYSTEM 8D – 471
Heater and Air Conditioning
General Description
The circuit consists of pressure switch, A/C switch,
electronic thermostat, blower motor, fan switch,
magnetic clutch of A/C compressor, blower resistor
and relay.
The operation of A/C system is controlled by turning
A/C switch on and off. Electronic thermostat and PCM
can stop operation of A/C temporarily by disconnect-
ing magnetic clutch under the predetermined condi-
tions to adjust room temperature, preventing abnor-
mal rise of engine coolant and reduce engine load
while A/C is in operation.
Refer to Heating, Ventilation and Air Conditioning in
HVAC section.

8D – 472 WIRING SYSTEM
Circuit Diagram (RHD 6VD1)-1
D08RW770
0.5 LG
0.5 LG
B -1 BODY-RH
BODY-LH
FRAME
ENG.5B
BODY
8B / R
8 B
+
_
P - 6
30B
P - 1
P - 5
P - 10
P - 7
P - 2
FL-1
80A MAINFL-4
30A CONDENSER FAN
F-6
15A RR COOLER
I-232
I-236 A/C SW
BLOWER
MOTOR
0.3 G/Y
I-42 I-42
I-421 3
216
0.5 LG
1
5W
B-190.5 BR
0.5 BR
0.5 P/G H-2413
H-167
H-16
2 L/R
I-41
I-18
I-18
I-18
I-18 1.25 L/O
1.25 L/Y
0.85 L/W 3
36
5
2 4
1 6
FAN SW HEATER BEZEL
ILLUMINATION
I-23 I-23
I-18
I-183
5
4
10.3 R/G0.85 G/R
ILLUMINATION
CONTROLLER (3) RELAY ; TAIL (4)
H-201
2 B
2BLOWER
RESISTOR
I-41
I-41
I-41
I-41
2L/B
2 B
1.25B
M
B-52
1B-5
B-361
B-36
B-36 B-362
34
I-23
10.85W/G
3L/R 3LC-19
25A BLOWER
0.3B
ELECTRONIC
THERMOSTAT
5W 3W
0.5 BR
1.25 L/O
0.5 LG/Y
0.3 G/Y 0.3 G/Y RELAY ;
HEATER AND
A/C
C-20 10A
AIR CON.
0.5 BR 0.5 BR
RELAY;STARTER (1)
5W
H-14
16
H-26
2L/B
2
H-20
H-1310
0.3 G/Y
0.5 LG

WIRING SYSTEM 8D – 475
Circuit Diagram (LHD 6VD1)-1
D08RW698
0.5 LG
H - 2614
B - 2 BODY-LH
BODY-RH
FRAME
ENG.5B
BODY
8B / R
8 B
+
_
P - 6
30B
P - 1
P - 5
P - 10
P - 7
P - 2
FL-1
80A MAIN
I - 232
I - 23
I - 236
1A/C SW
BLOWER
MOTOR
0.3 G/Y
B - 4 B - 4
B - 41 3
2 H - 48
10 5
0.5 LG
0.5LG
H-141
5W
B-190.5 BR
B
OFF ST
IG2
ACCSTARTER SWIG1
B2 1
4
2
5WFL-2
50A KEY SW
H-142
3W/B
B-11
0.5 BR
0.5 P/GH - 919
H-1617
H - 12 0.5LG
0.5 LG
0.5 LG
0.3G/Y
H - 4814
2 L/R
B - 3
H - 20
H - 20
H - 48
H - 48I - 18
I - 18
I - 18
I - 18 1.25 L/O
1.25 L/Y
0.85 L/W1.25 L/O
1.25 L/Y 31
36
5
2 3
10
2 4
1 6
FAN SW HEATER BEZEL
ILLUMINATION
I - 23 I - 23
I - 18
I - 183
5
4
10.5 R/G0.85 G/R
ILLUMINATION
CONTROLLER (3) FUSE F-12
H - 4815
2 B
2
0.85 L/W2 L/RBLOWER
RESISTOR
B - 3
B - 3
B - 3
B - 3
2L/B
2 B
0.3G/Y1.25B
M
B - 51
2
C-11 10A
AUDIO(ACC),MIRROR
B - 5
B-361
B-36
B-36 B-362
34
3L/B
0.5O/G
3L/R 3LC-19
25A BLOWER
0.5B
ELECTRONIC
THERMOSTAT
5W 3W
3W/B
3W/B
0.3 G/Y
1
RELAY ;
HEATER AND
A/C
C-20 10A
AIR CON.
0.5 BR
0.5 BR
0.5 BR
B - 11B - 11
FL-4
30A CONDENSER FAN
F-1
15A RR COOLER1.25 L/O
0.5LG/Y
0.3 G/Y

8D – 478 WIRING SYSTEM
Circuit Diagram (RHD 4JG2)-1
D08RW803
C-69
FENDER-LHB-1 BODY-RH
BODY-LH
FRAME
ENG.5B
BODY
8B / R
8 B
+
_
P - 6
30B
P - 1
P - 5
P - 10
P - 7
P - 2
FL-1
80A MAINFL-4 30A
CONDENSER FAN
F-6 10A
RR COOLER
1
2 I-232
I-23
I-236
1A/C SW
BLOWER
MOTOR
0.5G/O
I-42 I-42
I-421 3
216
0.5
G/W 0.5 LG
C-25
C-25
0.5LG
H-141
5W
B-190.5 BR
0.5BR 0.5BR
X-5 X-5
X-5 X-5
34 RELAY ;
A/C THERMO1
2
0.5 P/G 0.5 P/G
H-41100.5
G/W0.5
G/W
0.5 BR0.5
BR
PRESSURE SW
(CONDENSER) H-2413
0.5 LG
H-16 0.5LG
0.3GY
H-416
H-51
E-31
0.5 G/O
2L/R
I-41
I-18
I-18
I-18
I-18 1.25L/O
1.25L/Y
0.85L/W 3
36
5
2 4
1 6
FAN SW HEATER BEZEL
ILLUMINATION
I-23 I-23
I-18
I-18 3
5
4
10.3 R/G0.85 G/R
ILLUMINATION
CONTROLLER (3)RELAY ; TAIL (4)
H-201 2
BLOWER
RESISTOR
I-41
I-41
I-41
I-41
2L/B
2 B
1.25B
M
B-52
1B-5
B-361
B-36
B-36 B-362
34
3L/R 3LC-19
25A BLOWERRELAY ;
HEATER AND
A/C
0.3B
ELECTRONIC
THERMOSTAT
MAGNETIC CLUTCH
0.5G/O
5W 3W
0.5 BR 1.25 L/O
0.5 LG/Y
2B
C-20 10A
AIR CON.
0.5BR
7H-16
0.3G/Y
0.3G/Y0.3G/Y5W
0.85W/G
RELAY ; CHARGE (1)
H-1310
2
H-202L/B
VSV; FICD
C-69
2 1
0.5G/O 0.5 G/O
C-167
0.5 B
H-2616
H-2616
H-514

WIRING SYSTEM 8D – 481
Circuit Diagram (LHD 4JG2)-1
D08RW825
0.5 LG
B - 2 BODY-LH
BODY-RH
FRAME
ENG.5B
BODY
8B / R
8 B
+
_
P - 6
30B
P - 1
P - 5
P - 10
P - 7
P - 2
FL-1
80A MAIN
I - 232
I - 23
I - 236
1A/C SW
BLOWER
MOTOR
0.3 G/Y
B - 4 B - 4
B - 41 3
2 H - 48
12 5
0.5 LG
0.5LG
H-141
5W
B-190.5 BR
B
OFF ST
IG2
ACCSTARTER SWIG1
B2 1
4
2
5WFL-2
50A KEY SW
H-142
3W/B
B-11
0.5 P/G 19
H-1617
H - 121
H - 51 14
H - 26
0.5LG
0.5 LG
0.5 LG
0.3G/Y
H - 4814
2 L/R
B - 3
H - 20
H - 20
H - 48
H - 48I - 18
I - 18
I - 18
I - 18 1.25 L/O
1.25 L/Y
0.85 L/W1.25 L/O
1.25 L/Y 31
36
5
2 3
10
2 4
1 6
FAN SW HEATER BEZEL
ILLUMINATION
I - 23 I - 23
I - 18
I - 183
5
4
10.5 R/G0.85 G/R
ILLUMINATION
CONTROLLER (3) FUSE F-12
H - 4815
2 B
2
0.85 L/W2 L/RBLOWER
RESISTOR
B - 3
B - 3
B - 3
B - 3
2L/B
2 B
0.3G/Y1.25B
M
B - 51
2
C-11 10A
AUDIO(ACC),MIRROR
B - 5
B-361
B-36
B-36 B-362
34
3L/B
0.5O/G
3L/R 3LC-19
25A BLOWER
0.5B
ELECTRONIC
THERMOSTAT
5W 3W
3W/B
3W/B
0.3 G/Y
1
RELAY ;
HEATER AND
A/C
C-20 10A
AIR CON.
0.5 BR
0.5 BR
0.5 BR
B - 11B - 11
FL-4
30A CONDENSER FAN
F-1
15A RR COOLER1.25 L/O
0.5LG/Y
0.3 G/Y
H - 9

WIRING SYSTEM 8D – 493
Seat Heater
General Description
The circuit consists of seat heater switch and seat
heater unit.
Seat heater unit is incorporated into front seats.
To prevent from being overheated, seat heater unit
has thermostat.

8D – 494 WIRING SYSTEM
Circuit Diagram (RHD)
D08RW648
H HH
K K
B-29 STARTER SW
(IG2)
1.25
G/R
0.85
GR/L
0.85
W0.85
Y/V
0.85
W/R0.85
B
2.0
B0.85
G/R 3.0
B/R
C-2 15A
SEAT HEATER
SEAT HEATER SW-RH
2
3
B-29
4
B-29
1
B-29
5
H-57 2
H-57
B
A
H HH
K K
B-31
0.85
L/G
0.85
W0.85
Y/G
0.85
W/R0.85
B0.85
B/W
0.85
B
SEAT HEATER SW-LHSEAT
HEATER-RH
2
3
B-31
SEAT CUSHION SEAT
BACK
4
B-31
1
B-31
5
H-58 2
H-58
D
C
B-26
BODY-CTR 2.0
B
B-2
BODY-LH 2.0
B
B-18
BODY-RH
T- 8
4H-5733
T- 8 1
T- 8 0.85
W0.85
W/RA
B
0.85
B/W
0.85
B
SEAT
HEATER-LH
SEAT CUSHION SEAT
BACK
T- 1 0
4H-5833
T- 1 0 1
T- 1 0 0.85
W0.85
W/RC
D