4WD ISUZU TROOPER 1998 Service Repair Manual

8D – 536 WIRING SYSTEM
Circuit Diagram (LHD 4JG2 Push Button Type)-2
D08RW841
VSV;
FRT AXLE(C)VSV;
FRT AXLE(D)FRT AXLE
SW4WD SW
(TRANSFER)
ACTUATOR
(TRANSFER) 4WD CONTROL UNIT
FENDER-LH EHCU
(9)0.5
L/Y
0.5
BR
0.5
BR
0.5
B0.5
B0.85
B0.5
B
0.85
B
0.5
B 0.5
L/G0.5
Y/B0.85
GR
0.85
GR0.85
GR/L
0.85
GR/L0.5
R/L0.5
R/L
0.5
R 0.5
R
0.85
LG0.5
Y
0.5
B
0.85
B0.5
L/Y
4
H-60
3C-16
9
H-5E-21
2C-16
FENDER-LH 1
H-60
2P-1814C-94
15
C-94
9
C-94
1
P-18
0.5
P EHCU : ELECTRONIC HYDRAULIC CONTROL UNIT
0.5
LG15H-720C-94H-122
2
P-191P-192 3
P-17
1P-17H-60
10
C-94
1 10
1E-46E-45H-5
5
C-94
3 13
4H-4E-21
E-21
E-21
E-21 4
C-94
2 14H-421
C-94
6 16H-422
C-94
5 15H-4

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

METER AND GAUGE8E–1
METER AND GAUGE
CONTENTS
Service Precaution 8E–1. . . . . . . . . . . . . . . . . . . . . .
General Description 8E–1. . . . . . . . . . . . . . . . . . . . .
Meter Assembly 8E–2. . . . . . . . . . . . . . . . . . . . . . . . .
General Description 8E–2. . . . . . . . . . . . . . . . . . . . .
Layout for Meters/Gauges, Warning Lights,
Indicator Lights and Illumination Lights 8E–2. . .
Table for Meter/Gauge Connector Terminal
Connections 8E–8. . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8E–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E–14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Light Bulb, Indicator Light Bulb,
Illumination Light Bulb, A/T Indicator
Light Bulb 8E–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8E–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . Vehicle Speed Sensor 8E–15. . . . . . . . . . . . . . . . . . .
Removal 8E–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E–15. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Tank Unit 8E–15. . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8E–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E–15. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multi Meter 8E–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8E–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E–16. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ambient Sensor 8E–16. . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8E–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E–16. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 8E–17. . . . . . . . . . . . .
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.
General Description
The circuit consists of the starter switch, meter assembly,
vehicle speed sensor, transmission switch, lighting
switch, turn signal switch, thermo unit, oil pressure unit,
Powertrain Control Module (PCM), fuel tank unit, 4WD
switch, oil pressure switch, parking brake switch, brake
fluid switch, seat belt switch, illumination controller, multi
meter and ambient sensor.

METER AND GAUGE8E–9
Meter Assembly–Gasoline W/O TOD–2
Connector No. I–9
TerminalFunction
1A/T oil temp warning light
2Seat belt warning light
3Check trans warning light
4Brake warning light
5Check engine warning light
6Charge warning light
7Cigarette lighter illumination light
8Illumination controller
9Tachometer
10D position (A/T)
11—
12A/T shift indicator control unit
13—
142 position (A/T)
15Starter switch
16Cruise set indicator light
17Cruise main indicator light
184WD indicator light
19Ground (Gauge)
20—
21Winter drive indicator light
22Oil pressure warning light
23—
24Air bag warning light
25Power drive indicator light
26—
27—
28Turn signal indicator light (Left)
29—
30Ground
Connector No. I–10
TerminalFunction
1Turn signal indicator light (Right)
2L position (A/T)
3R position (A/T)
4Engine coolant temperature gauge
5Speedometer
6—
7—
8Battery (+)
9—
10Rear fog light
11P position (A/T)
12N position (A/T)
133 position (A/T)
14High-beam indicator light (–)
15High-beam indicator light (+)
16ABS indicator light
17—
18Fuel warning light
19Oil pressure gauge
20Fuel gauge
21—
22—

METER AND GAUGE8E–13
Meter Assembly–Diesel–2
Connector No. I–9
TerminalFunction
1—
2Seat belt warning light
3—
4Brake warning light
5—
6Charge warning light
7Cigarette lighter illumination light
8Illumination controller
9Tachometer
10—
11—
12—
13—
14—
15Starter switch
16—
17—
184WD indicator light
19Ground (Gauge)
20—
21—
22Oil pressure warning light
23Water sedimenter
24Air bag warning light
25—
26Glow indicator light
27—
28Turn signal indicator light (Left)
29—
30Ground
Connector No. I–10
TerminalFunction
1Turn signal indicator light (Right)
2—
3—
4Engine coolant temperature gauge
5Speedometer
6—
7—
8Battery (+)
9—
10—
11—
12—
13—
14High-beam indicator light (–)
15High-beam indicator light (+)
16ABS indicator light
17—
18Fuel warning light
19Oil pressure gauge
20Fuel gauge
21—
22—