ISUZU TROOPER 1998 Service Repair Manual

8D – 538 WIRING SYSTEM
Torque on Demand (T.O.D.)

WIRING SYSTEM 8D – 539
Circuit Diagram (RHD 6VE1)-1
D08RW610
3.0
B/Y
0.5
L/W
0.5
L/W
0.5
L/W0.85
G/R
0.5
B/W0.3
R/G0.5
BR/R0.5
BR/G0.5
BR0.5
BR/Y0.5
BR/W0.5
R
0.5
BR/R0.5
BR/G0.5
BR0.5
BR/Y0.5
BR/W0.5
R 0.5
B/W 0.5
L/WC-4 10A
ELEC.IGN.
4WD
SWBRAKE
SW STOP
LIGHT
SW T.O.D. INDICATOR
(METER)
T.O.D. CONTROL UNIT
TAIL RELAY
(4)
ILLUMINATION
CONTROLLER
(3)
1
B-677
B-689H-25
3.0
B/Y
0.5
L/Y
0.5
L/YC-10 10A
METER,GAUGESTARTER SW
(IG1) STARTER SW
(IG1)
6
I-12
4
I-122I-12
3
I-1220H-25
17
B-68
5.0
W
0.85
G/W C-14 15A
STOP,
A/T CONT. BATT.(+)
STOP LIGHT
2
B-68 5
H-2726I-9
15I-9
15
B-689H-2721I-9
14
B-682H-2722I-9
13
B-6815H-2723I-9
16
B-683H-2716I-9
18
B-6816H-257
H-32 17
I-9 6
H-26
0.85
G/W 0.85
G/W(W/ CRUISE CONTROL)
0.85
G/Y
0.85
G/Y 0.85
G/Y
B-131B-13
4
B-141B-14
2
RR 1 2 3 AUTO CHECK
A

8D – 540 WIRING SYSTEM
Circuit Diagram (RHD 6VE1)-2
D08RW611
FRT AXLE
SWT.O.D. CONTROL UNIT3
C-16
FENDER-LHM-220.5
L/Y
0.5
G0.5
G/W0.5
G/R0.5
G/Y
0.5
LB
0.5
G/R0.5
G
0.5
G0.5
G 0.5
G/W0.5
G/R0.5
G/R0.5
G/Y0.5
LB 0.5
L/Y
0.5
L/Y 0.5
BR/R
0.5
P
0.5
Y
0.5
Y
0.5
B0.5
B
0.5
B
0.85
B0.5
L/Y
2M-225H-10
122B-68
5H-1210H-102
M-231M-233H-10B-67
5H-72
FRT SPEED
SENSOR
(TRANSFER)RR SPEED
SENSOR
(TRANSFER)CLUTCH
SOLENOID
(TRANSFER)
M-241M-24
2
A-33H-49B-67
7
6
A-314H-49B-68
12
10
A-313H-492
H-497
H-49
B-67
10
5
A-3 9
A-31
A-3 12
H-49B-68
11
8
A-3H-49B-67
4
4
VSV;
FRT AXLE(C)VSV;
FRT AXLE(D)

WIRING SYSTEM 8D – 541
Circuit Diagram (RHD 6VE1)-3
D08RW612
4H SW
(TRANSFER)T.O.D. CONTROL UNIT
7
A-3
TRANSFER9H-49
A-3
0.5
B/L 0.85
B4
A-36H-495
H-49
3H-498
B-67
0.85
B0.5
GR/R0.5
GR/L
0.5
GR/L
0.5
B
0.5
B/L 0.5
GR/R 12
B-68
3
B-68
4
B-67
11
B-67
6
4L SW
(TRANSFER)12
A-3
H-84
13H-5
E-30 1.25
B/L
1.0
B/L
E-29
3
E-52
E-5
14
H-5 5
H-6
COMMON
CHAMBER COMMON
CHAMBERB-68
9H-76
C-63
C-63
C-63
B-68
10H-8
7
C-63B-68
8H-8
8
54
C-63H-7
16 819
B
B
A
B-67
9
0.5
B/L0.5
B/L0.5
B/L0.85
R/W
0.85
L
0.75
L
0.8
L0.8
R 0.8
G
0.5
B/L
0.5
B/P0.5
B/L0.5
B/L 0.5
O/B0.3
W
0.3
W0.85
G/W0.85
G/W
0.5
O/B
1.25
B/P
1.0
B/R0.75
LPCM
(E8)
PCM
(A1) PCM
(D8)
6
B-68 EHCU
(27)
1
E-5THROTTLE POSITION
SENSORDATA LINK
CONNECTOR
20
H-15
1
B-68 TAIL RELAY
(3)
3
H-15
0.3
G0.5
LG/R0.5
P
3
B-67 EHCU
(9)EHCU : ELECTRONIC
HYDRAULIC
CONTROL UNIT
9
H-15

8D – 542 WIRING SYSTEM
Parts Location
Legend
(1) I-9
(2) B-13 or B-14
(3) H-12
(4) I-12
(5) A-3
(6) H-7, H-8
(7) H-32
(8) C-16
(9) H-5, H-6
(10) C-63
(11) H-49(12) M-22
(13) M-23
(14) M-24
(15) H-10
(16) E-5
(17) E-29
(18) H-42
(19) E-30
(20) Battery
(21) H-13, H-15, H-26
(22) Fuse Box
(23) B-67, B-68
D08RW621
1
2
345
8
7
9
101112131415
16
17 18
19
20
21
22
23
6

WIRING SYSTEM 8D – 543
Supplemental Restraint System (SRS) – Air Bag
General Description
The circuit consists of Sensing and Diagnostic Mod-
ule (SDM), driver’s air bag assembly, SRS coil assem-
bly, passenger’s air bag assembly, and “AIR BAG”
warning light. SDM, SRS coil assembly (driver side
only), driver air bag assembly, passenger air bag
assembly and connector wire make up the deploy-
ment loops. The function of the deployment loops is
to supply current through air bag assembly, which
will cause deployment of the air bags in the event of
a frontal crash of sufficient force, up to 30 degrees off
the center line of the vehicle. The air bag assemblies
are only supplied enough current to deploy when the
SDM detects vehicle velocity changes severe enough
to warrant deployment.
The SDM contains a sensing device which converts
vehicle velocity changes to an electrical signal.
The electrical signal generated is processed by the
SDM and then compared to a value stored in memory.
When the generated signal exceeds the stored value,
the SDM will cause current to flow through the air bag
assembly deploying the air bags.
Refer to Supplemental Restraint System in Restraints
section.

8D – 544 WIRING SYSTEM
Circuit Diagram (6VD1)
D08RW605
PASSENGER
INFLATOR
MODULEDATA LINK
CONNECTOR
I-9
24
SRS
WARNING
LIGHT
(METER)
SDM
3.0
B/Y STARTER SW
(IG1)
C-21 10A
0.5
L/Y FUSE C-10I-915H-622
0.5
W/R0.5
W/R 0.75
B/RU-57
I-9
2
SRS
WARNING
LIGHT
(METER)
0.5
L/Y FUSE C-10(W/T.O.D)I-926H-622
0.5
W/R0.5
W/RU-57
0.75
Y0.75
Y/B
U-5
3U-62
U-5
4U-6
SRS COIL
ASSEMBLY
DRIVER
INFLATOR
MODULE1
U-512
0.75
Y/G0.75
Y/R
0.5
B
U-5
15U-11
•Terminals marked with a star ( ) are gold plated.
U-5
16U-1
BODY-FRTCOMMON
CHAMBER 2
U-5
6
U-5
0.5
GR
0.5
GR
0.5
B/L
1.0
B/L 1.25
B/L 1H-612
13
U-2
C-63
U-5
0.5
O
0.5
GR0.5
O
0.5
O24H-611
H-652
H-651
9C-63
0.85
G/W
0.85
G/WH-7 FUSE C-14
9
16C-63
5
C-63E-30H-514
0.5
B/LC-63
4

WIRING SYSTEM 8D – 545
Circuit Diagram (4JG2)
D08RW990
PASSENGER
INFLATOR
MODULEDATA LINK
CONNECTOR
I-9
24
SRS
WARNING
LIGHT
(METER)
SDM
3.0
B/Y STARTER SW
(IG1)
C-21 10A
0.5
L/Y FUSE C-10
I-915H-622
0.5
W/R0.5
W/R 0.75
B/RU-57
0.75
Y0.75
Y/B
U-5
3U-62
U-5
4U-6
SRS COIL
ASSEMBLY
DRIVER
INFLATOR
MODULE1
U-512
0.75
Y/G0.75
Y/R
0.5
B
U-5
15U-11
•Terminals marked with a star ( ) are gold plated.
U-5
16U-1
BODY-FRT 2
U-5
6
U-5
0.5
GR
0.5
GR
0.5
B/L 1H-612
13
U-2
C-63
U-5
0.5
O
0.5
GR0.5
O
0.5
O24H-611
H-652
H-651
9C-63
0.85
G/W
0.85
G/W
H-7 FUSE C-14
9
16C-63
5
C-63
0.5
B
FENDER
-LHC-63C-168 4

8D – 546 WIRING SYSTEM
Circuit Diagram (6VE1 South Africa)-1
D08RWB41
PASSENGER
INFLATOR
MODULEDATA LINK
CONNECTOR
I-9
24
SRS
WARNING
LIGHT
(METER)
SDM
3.0
B/Y STARTER SW
(IG1)
C-21 10A
0.5
L/Y FUSE C-10
I-915H-622
0.5
W/R0.5
W/R 0.75
B/RU-57
I-9
2
SRS
WARNING
LIGHT
(METER)
0.5
L/Y FUSE C-10(W/T.O.D)
I-926H-622
0.5
W/R0.5
W/RU-57
0.75
Y0.75
Y/B
U-5
3U-62
U-5
4U-6
SRS COIL
ASSEMBLY
DRIVER
INFLATOR
MODULE1
U-512
0.75
Y/G0.75
Y/R
0.5
B
U-5
15U-11
•Terminals marked with a star ( ) are gold plated.
U-5
16U-1
BODY-FRTCOMMON
CHAMBER 2
U-5
6
U-5
0.5
GR
0.5
GR
0.5
B/L
1.0
B/L 1.25
B/L 1H-612
13
U-2
C-63
U-5
0.5
O
0.5
GR0.5
O
0.5
O24H-611
H-652
H-651
9C-63
0.85
G/W
0.85
G/W
H-7 FUSE C-14
9
16C-63
5
C-63E-30H-514
0.5
B/LC-63
4

WIRING SYSTEM 8D – 547
Circuit Diagram (6VE1 South Africa)-2
D08RWB43
SDM
0.5
L/B0.5
L/O
0.5
L/B0.5
L/O 9
U-5
U-5
10
SEAT BELT BUCKLE
SQUIB-LHB-34
H-662
H-661
2 1
B-34
0.5
L/R0.5
L/Y
0.5
L/R0.5
L/Y 21
U-5
U-5
22
SEAT BELT BUCKLE
SQUIB-RHB-23
H-642
H-641
2 1
B-23