1998 ISUZU TROOPER brake

WIRING SYSTEM 8D – 425
Circuit Diagram (RHD 4JG2)-3
D08RW737
KMJ
H
L
BRAKE EHCU:ELECTRONIC HYDRAULIC CONTROL UNIT
SEDIMENTER 4WDBRAKE
FLUID
SWPARKING
BRAKE
SW
18
19
4WD
CONTROL
UNIT(19)
FRT AXLE
SW(2)
4WD
SW(1)0.5
LG
0.5
LG 0.5
LG 0.5
LGI-9
H-2723
7
2 0.5
V
0.3
V0.5
B/P
0.85
B/P
0.5
B0.5
B/P0.5
B/P I-9
H-9
H-674
1
8 9
213
1
FENDER-RH0.5
B/PI-9
H-16
C-15
C-39 C-15
FUEL
FILTER
SW
0.5
B1
2
FENDER-L HC-16 C-67
VACUUM
SW
1
C-68H-26
B-27
METER

WIRING SYSTEM 8D – 433
D08RW926
Circuit Diagram (LHD 6V*1 W/O T.O.D)-3
GHF
E
16
13 CRUISE
SETCRUISE
MAINAIR BAG ABS 4WD BRAKEEHCU:ELECTRONIC HYDRAULIC CONTROL UNIT
OIL
PRESSURE
CRUISE
CONTROL
UNIT(14)0.3
B/OI-9
H-4817
12
CRUISE
CONTROL
UNIT(13) 0.3
GR/LI-9
H-4824
2
SDM
(7)SDM
(20) 0.5
W/RI-9
H-6216
18
EHCU
(16)
OIL PRESSURE
SWBRAKE
FLUID
SW SEAT
BELT
SWPARKING
BRAKE
SW
0.5
YI-10
H-1618
22
4WD
CONTROL
UNIT(19)/
FRT AXLE
SW(2)
OR
4WD SW(1)0.5
LGI-9
H-2522
16
12
1 0.5
LB
0.5
LB0.5
B/P
0.85
B0.5
B/P0.5
B/P
0.5
LBI-9
H-9
H-6
E-1
SEAT
BELT
2
11 0.3
L
0.5
L
2.0
B2.0
B2.0
B 0.5
BI-9
B-24 H-25
1
2 H-244
1
2 17
215
1
FENDER-LH0.5
B/PI-9
H-9
C-15
C-16
BODY-CTR BODY-LH BODY-RHB-26
B-18
B-2C-15H-25
B-27
METER

WIRING SYSTEM 8D – 439
Circuit Diagram (LHD 4JG2)-3
D08RW914
HSEAT
BELT
SW
BODY-LHB-18
BODY-CTR
BODY-RH
B-2
2
11 0.3
L
0.5
L
2.0
B 2.0
B 2.0
B 0.5
BI-9
B-24 H-25
1
B-24
SEAT
BELT
B-262
KMJL
BRAKE EHCU:ELECTRONIC HYDRAULIC CONTROL UNIT
SEDIMENTER 4WDBRAKE
FLUID
SWPARKING
BRAKE
SW
18
22
4WD
CONTROL
UNIT(19)
FRT AXLE
SW(2)
4WD
SW(1) SDM
(20)0.5
LG
0.5
LG 0.5
LG 0.85
LGI-9
H-2523
20
2 0.5
V
0.3
V0.5
B/P
0.85
B/P
0.5
B0.5
B/P0.5
B/P I-9
H-9
H-674
1
3 17
215
1
FENDER-LH0.5
B/PI-9
H-9
C-15
C-16 C-15
FUEL
FILTER
SW
0.5
B1
2
FENDER-L HC-16 C-67
VACUUM
SW
1
C-68H-25
B-27
METER

8DÐ460 WIRING SYSTEM
7. Warning/Indicator Light
7-1 When The Parkng Brake Lever Is Pulled, The Indicator Light Does Not Light Up
·
·
·DISCONNECT THE PARKING BRAKE SWITCH CONNECTOR
CONNECT THE HARNESS SIDE CONNECTOR TO THE
GROUND
WHEN THE STARTER SWITCH IS TURNED ON, DOES THE
INDICATOR LIGHT LIGHT UP?
YES
·IS THE PARKING BRAKE SWITCH INSTALLED
TO THE CORRECT POSITION?
NO
·DOES THE INDICATOR LIGHT HAVE A BURNED OUT
BULB, OR IS THE SOCKET POORLY CONNECTED?
YES
REPLACE THE METER
ASSEMBLY
NO
REPLACE THE BULB OR REPAIR
THE POOR CONNECTION AT THE
SOCKET
YES
·WHEN THE PARKING BRAKE IS
OPERATED, IS THERE CONTINUITY
BETWEEN THE SWITCH CONNECTOR
1 B-27 AND GROUND?
NO
ADJUST THE INSTALLATION POSITION
NO
REPAIR OR REPLACE THE PARKING BRAKE SWITCH

WIRING SYSTEM 8DÐ461
7-2 Even When The Parking Brake Lever Is Released, The Indicator Light Does Not Go Off
·IS THE PARKING BRAKE SWITCH INSTALLED TO
THE CORRECT POSITION, AND DOES IT OPERATE
NORMALLY?
YES
·WHEN THE PARKING BRAKE SWITCH CONNECTOR
B-27 DISCONNECTED, DOES THE INDICATOR
LIGHT GO OFF?ADJUST THE SWITCH INSTALLATION POSITION,
OR REPAIR OR REPLACE THE SWITCH
NO
NO
·IS THE BRAKE FLUID SUFFICIENT?
YES
·IS THE BRAKE FLUID
SWITCH NORMAL?
NO
REPLENISH THE BRAKE
FLUID
YESNO
REPLACE THE BRAKE
FLUID TANK
REPAIR A SHORT CIRCUIT
BETWEEN THE PARKING
BRAKE SWITCH CONNECTOR
1 B-27 AND 10 I-10 , OR
THE BRAKE FLUID SWITCH
CONNECTORS 2 C-15
AND 10 I-10 , OR VACCUM
SWITCH CONNECTOR 1 C-68
AND 10 I-10
YES
REPLACE THE METER ASSEMBLY
IS THE VACCUM
SWITCH NORMAL?
YESNO
REPLACE THE
VACCUM SWITCH
·

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—