reset ISUZU TROOPER 1998 Service Owner's Guide

8DÐ16 WIRING SYSTEM
Circuit Breaker
The circuit breaker is a protective device designed to
open the circuit when a current load is in excess of rated
breaker capacity. If there is a short or other type of
overload condition in the circuit, the excessive current will
open the circuit between the circuit breaker terminals.
The reset knob (1) pops out when the circuit is open. Push
the reset knob in place to restore the circuit after repairing
it.
Relay
Battery and load location may require that a switch be
placed some distance from either component. This
means a longer wire and a higher voltage drop (1).
The installation of a relay between the battery and the
load reduces the voltage drop (2).
Because the switch controls the relay, amperage through
the switch can be reduced.
Push
LOAD
12LOAD
RELAY
D08RW404
1

WIRING SYSTEM 8D – 411
Circuit Diagram (RHD 6V*1 W/O T.O.D)-1
%38
3
C-3910H-42
0.5
B/R0.5
B/R 0.5
B/R
B
DC
A
FENDER-RH
H-104M-10
2A
I 0.5
L/Y0.5
L/Y0.5
L/Y
1
M-109H-103H-9
0.5
LG/W0.5
LG/W
0.5
LG/W0.5
LG/W 0.5
LG/W0.5
R/W
SPEEDO-
METER
RESET
SWTACHOMETERENGINE
COOLANT
TEMPERATURE
GAUGEFUEL
GAUGEOIL
PRESSURE
GAUGE FUSE C-15
3
M-10125H-9
11H-10
VEHICLE
SPEED SENSOR
I-10
0.5
Y/B0.5
Y/B0.5
Y/B
1
E-191 4H-24
11H-6I-10
2
H-8
PCM
(D7)CRUISE CONTROL
UNIT(9)0.5
B/R
15
H-9
PCM
(C10)9I-9
0.5
Y/R
14H-2520I-10
ENGINE
COOLANT
TEMPERATURE
UNIT
0.5
Y/G0.5
Y/V0.5
Y/B
1E-217 19H-9
10H-6I-10
OIL
PRESSURE
UNIT
8
I-10METER
ODO/TRIP
METER

WIRING SYSTEM 8D – 417
%38
Circuit Diagram (RHD 6V*1 W/T.O.D)-1
3
C-3910H-42
0.5
B/R0.5
B/R 0.5
B/R
B
DC
A
FENDER-RH
H-104M-10
2A
I 0.5
L/Y0.5
L/Y0.5
L/Y
1
M-109H-103H-9
0.5
LG/W0.5
LG/W
0.5
LG/W0.5
LG/W 0.5
LG/W0.5
R/W
SPEEDO-
METER
RESET
SWTACHOMETERENGINE
COOLANT
TEMPERATURE
GAUGEFUEL
GAUGE FUSE C-15
3
M-10125H-9
11H-10
VEHICLE
SPEED SENSOR
I-10
0.5
Y/B0.5
Y/B0.5
Y/B
1
E-191 9H-24
11H-6I-10
2
H-8
PCM
(D7)CRUISE CONTROL
UNIT(9)0.5
B/R
15
H-9
PCM
(C10)9I-9
0.5
Y/R
14H-2520I-10
ENGINE
COOLANT
TEMPERATURE
UNIT
8
I-10
METER
ODO/TRIP
METER

WIRING SYSTEM 8D – 423
Circuit Diagram (RHD 4JG2)-1
%38
6
C-3910H-41
0.5
B/R0.5
B 0.5
B/R
B
EG
F
D
A
FENDER-RH
H-514E-20
2A 0.5
Y 0.5
L/Y0.5
L/Y
1
E-2016H-5H-93
0.5
LG/W0.5
LG/W
0.3
LG/W0.3
LG/W 0.5
LG/W0.5
R/W
SPEEDO-
METER
RESET
SWTACHOMETERENGINE
COOLANT
TEMPERATURE
GAUGEFUEL
GAUGEOIL
PRESSURE
GAUGE FUSE C-15
3
E-20125H-9
15H-5
VEHICLE
SPEED SENSOR
I-10
0.5
Y/B0.5
Y/B0.5
Y/B
1
E-191 4H-24
4H-5I-10
QOS-III
CONTROL
UNIT
(9)QOS/EGR
CONTROL
UNIT
(16)0.5
BR
0.5
BR
0.5
BR
0.5
BP15
H-9
6H-49I-9
1E-36
0.5
Y/R
14H-2520I-10
ENGINE
COOLANT
TEMPERATURE
UNIT TACHO
SENSOR
0.5
Y/V0.5
LB 0.5
Y/V0.5
Y/B
1E-217 19H-9
2H-5
2
E-23H-5
C
0.5
BP 0.5
BP
6
C-39
FENDER-RH4H-42
I-10
OIL
PRESSURE
UNIT
8
I-10
METER
ODO/TRIP
METER
E-36
2
10H-4C

WIRING SYSTEM 8D – 431
D08RW924
Circuit Diagram (LHD 6V*1 W/O T.O.D)-1
8
C-3910H-42
0.5
B/R0.5
B/R 0.5
B/R
B
DC
A
FENDER-RH
H-104M-10
2A
I 0.5
L/Y0.5
L/Y0.5
L/Y
1
M-109H-105H-24
0.5
LG/W0.5
LG/W
0.5
LG/W0.5
LG/W 0.5
LG/W0.5
R/W
SPEEDO-
METER
RESET
SWTACHOMETERENGINE
COOLANT
TEMPERATURE
GAUGEFUEL
GAUGEOIL
PRESSURE
GAUGE FUSE C-15
3
M-10145H-9
11H-10
VEHICLE
SPEED SENSOR
I-10
0.5
Y/B0.5
Y/B0.5
Y/B
1
E-191 4H-9
11H-6I-10
8
H-8
PCM
(D7)CRUISE CONTROL
UNIT(9)0.5
B/R
18
H-9
PCM
(C10)9I-9
0.5
Y/R
13H-2620I-10
ENGINE
COOLANT
TEMPERATURE
UNIT
0.5
Y/G0.5
Y/B0.5
Y/B
1E-212 19H-9
10H-6I-10
OIL
PRESSURE
UNIT
8
I-10
METER
ODO/TRIP
METER

WIRING SYSTEM 8D – 437
D08RW915
Circuit Diagram (LHD 4JG2)-1
8
C-3910H-41
0.5
B/R0.5
B 0.5
B/R
B
EG
F
D
A
FENDER-RH
H-514E-20
2A 0.5
Y 0.5
L/Y0.5
L/Y
1
E-2016H-5H-245
0.5
LG/W0.5
LG/W
0.3
LG/W0.3
LG/W 0.5
LG/W0.5
R/W
SPEEDO-
METER
RESET
SWTACHOMETERENGINE
COOLANT
TEMPERATURE
GAUGEFUEL
GAUGEOIL
PRESSURE
GAUGE FUSE C-15
3
E-20145H-9
15H-5
VEHICLE
SPEED SENSOR
I-10
0.5
Y/B0.5
Y/B0.5
Y/B
1
E-191 4H-9
4H-5I-10
QOS-III
CONTROL
UNIT
(9)QOS/EGR
CONTROL
UNIT
(16)0.5
BR
0.5
BR
0.5
BR
0.5
BP18
H-9
6H-49I-9
1E-36
0.5
Y/R
13H-2620I-10
ENGINE
COOLANT
TEMPERATURE
UNIT TACHO
SENSOR
0.5
Y/V0.5
LB 0.5
Y/V0.5
Y/B
1E-212 19H-9
2H-5
2
E-23H-5
C
0.5
BP 0.5
BP
7
C-39
FENDER-RH4H-42
I-10
OIL
PRESSURE
UNIT
8
I-10
METER
ODO/TRIP
METER
E-36
2
10H-4C

8D – 492 WIRING SYSTEM
5. Power Source Circuit Diagnosis
•IS THERE ANY CONTINUITY BETWEEN THE TERMINALS
OF C/B-2 (30A)?
YES
•IS FUSE C-4 (10A) NORMAL? PUSH IN THE RESET BUTTON OF CIRCUIT BREAKER
AND CHECK THE CONTINUITY AGAIN
IF THERE IS NO CONTINUITY AFTER PUSHING RESET
BUTTON, REPLACE IT WITH NEW ONE
NO
YES
•IS THE POWER WINDOW RELAY NORMAL? REPLACE THE FUSE
NO
YES
•
•TURN THE STARTER SWITCH ON
IS THE BATTERY VOLTAGE APPLIED BETWEEN 1 B-37
AND THE GROUND OR 2 B-37 AND THE GROUND?
NO
REPLACE THE RELAY
YES
REPAIR A POOR CONNECTION OF THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 3 B-37 AND B-19 (OR B-18 )GROUND IT SECURELY
NO
YES
•IS B-19 (OR B-18 ) GROUNDED SECURELY?
NO
REPAIR A POOR CONNECTION OF THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN FUSE C-4 (10A) AND
1 B-37 OR 1 H-14 AND 2 B-37

8E–2METER AND GAUGE
Meter Assembly
General Description
The meter assembly has the speedometer, tachometer,
engine coolant temperature gauge, fuel gauge and
warning/indicator lights. In addition, the meter assembly
containing TOD (Torque on Demand) has the TOD
indicator light, or the meter assembly not containing TOD
has the voltmeter and oil pressure gauge instead of the
TOD indicator.
Layout for Meters/Gauges, Warning Lights, Indicator Lights and Illumination
Lights
Meter Assembly–Gasoline W/O TOD (Front View)
825RW207
Legend
(1) Voltmeter & Engine Coolant Temperature
Gauge
(2) Tachometer
(3) Warning Light Lens
(4) Speedometer(5) Oil Pressure Gauge & Fuel Gauge
(6) Warning Light Lens
(7) Reset Knob
(8) A/T Shift Indicator
(9) Warning Light Lens

8E–4METER AND GAUGE
Meter Assembly–Gasoline W/TOD (Front View)
825RW210
Legend
(1) TOD Indicator
(2) Tachometer
(3) Warning Light Lens
(4) Speedometer(5) Coolant Temperature Gauge & Fuel Gauge
(6) Warning Light Lens
(7) Reset Knob
(8) A/T Shift Indicator
(9) Warning Light Lens

8E–6METER AND GAUGE
Meter Assembly–Diesel (Front View)
825RW211
Legend
(1) TOD Indicator
(2) Tachometer
(3) Warning Light Lens
(4) Speedometer(5) Coolant Temperature Gauge & Fuel Gauge
(6) Warning Light Lens
(7) Reset Knob
(8) Warning Light Lens