Isuzu Trooper (1998-2002 year). Service manual — part 1003
8D–546
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
3
4
5
8
7
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
6
WIRING SYSTEM
8D–547
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–548
WIRING SYSTEM
Circuit Diagram (6VD1)
D08RW605
P
ASSENGER
INFLA
T
O
R
MODULE
DA
T
A
LINK
CONNECT
OR
I-9
24
SRS
W
ARNING
LIGHT
(METER)
SDM
3.0
B/Y
ST
AR
TER SW
(IG1)
C-21 10A
0.5
L/Y
FUSE C-10
I-9
15
H-62
2
0.5
W/R
0.5
W/R
0.75
B/R
U-5
7
I-9
2
SRS
W
ARNING
LIGHT
(METER)
0.5
L/Y
FUSE C-10
(W/T
.O.D)
I-9
26
H-62
2
0.5
W/R
0.5
W/R
U-5
7
0.75
Y
0.75
Y/B
U-5
3
U-6
2
U-5
4
U-6
SRS COIL
ASSEMBL
Y
DRIVER
INFLA
T
O
R
MODULE
1
U-5
12
0.75
Y/G
0.75
Y/R
0.5
B
U-5
15
U-1
1
•T
erminals marked with a star ( ) are gold plated.
U-5
16
U-1
BODY
-FR
T
COMMON
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
1
H-61
2
13
U-2
C-63
U-5
0.5
O
0.5
GR
0.5
O
0.5
O
24
H-61
1
H-65
2
H-65
1
9
C-63
0.85
G/W
0.85
G/W
H-7
FUSE C-14
9
16
C-63
5
C-63
E-30
H-5
14
0.5
B/L
C-63
4
WIRING SYSTEM
8D–549
Circuit Diagram (4JG2)
D08RW990
P
ASSENGER
INFLA
T
O
R
MODULE
D
A
T
A
LINK
CONNECT
OR
I-9
24
SRS
W
ARNING
LIGHT
(METER)
SDM
3.0
B/Y
ST
AR
TER SW
(IG1)
C-21 10A
0.5
L/Y
FUSE C-10
I-9
15
H-62
2
0.5
W/R
0.5
W/R
0.75
B/R
U-5
7
0.75
Y
0.75
Y/B
U-5
3
U-6
2
U-5
4
U-6
SRS COIL
ASSEMBL
Y
DRIVER
INFLA
T
O
R
MODULE
1
U-5
12
0.75
Y/G
0.75
Y/R
0.5
B
U-5
15
U-1
1
•T
e
rm
inals mar
k
ed with a star ( ) are gold plated.
U-5
16
U-1
BOD
Y
-FR
T
2
U-5
6
U-5
0.5
GR
0.5
GR
0.5
B/L
1
H-61
2
13
U-2
C-63
U-5
0.5
O
0.5
GR
0.5
O
0.5
O
24
H-61
1
H-65
2
H-65
1
9
C-63
0.85
G/W
0.85
G/W
H-7
FUSE C-14
9
16
C-63
5
C-63
0.5
B
FENDER
-LH
C-63
C-16
8
4
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