light ISUZU TROOPER 1995 Workshop Manual

DOOR LOCK ACTUATOR (fRT DOOR­
LH & RH, RR DOOR -LH & RH, TAIL-
~ GATE)
~ INSPECTION
Check the continuity between the terminals while
moving by hand the link portion of the actuator to the
lock and unlock sides. (Fig. 8-324)
[QI] I D-191 I D-211 I D-261
[E)
~
~ Actuator side
~· 2 4 r
Lock
Unlock
Fig. 8-324
B REMOVAL AND INSTALLATION
1++1 Referto "POWER DOOR LOCK" in this section for
door lock controller removal and installation
steps.
FRONT DOOR LOCK SWITCH -LEFT
AND RIGHT
DOOR LOCK CONTROLLER
Refer to "POWER DOOR LOCK" in this section.
DOOR SWITCH
CHASSIS ELECTRICAL 8-283
ANTI-THEFT HORN
~ INSPECTION
Check the continuity between the connector termi­
nals. (Fig. 8-325)
Fig. 8-325
B REMOVAL (FIG. 8-326)
Preparation: Disconnect the battery ground cable.
TAILGATE SWITCH Fig. 8-326
Refer
to "DOME LIGHT, LUGGAGE ROOM LIGHT,
COURTESY LIGHT,
MAP LIGHT, SEAT BELT SWITCH 1. Anti-theft horn
AND WARNING BUZZER" in this section. • Disconnect the connector.
• Remove the fixing bolt.
B INSTALLATION
To install, follow the removal steps in the reverse
order.

8-284 CHASSIS ELECTRICAL
ANTI-THEFT INDICATOR
~ INSPECTION
With the battery (+) terminal connected to the
indicator
terminal 9 ~l'ld the H terminal to the
indicator
terminal 10[EIJ, check to see if the
indicator
lights up. (Fig. 8-327)
Terminal No. 9 10
Continuity
Fig. 8-327
B REMOVAL (FIG. 8-328)
Preparation: Disconnect the battery ground cable.
4. Instrument panel cluster assembly
-====-==============~!!;!;::,..
Fig. 8-328
5. Anti-theft
indicator
1. Front console assembly
2. lower cluster assembly
3. Instrument panel driver lower cover
4. Instrument panel cluster assembly
• Refer to FOG LIGHT SWITCH removal steps in
this section.
5. Anti-theft indicator
• Remove 2 screws.
B INSTALLATION
To install, follow the removal steps in the reverse
order.
ANTI-THEFT CONTROLLER
B REMOVAL (FIG. 8-329)
Preparation: Disconnect the battery ground cable.
Fig. 8-329
1. Anti-theft controller
• Disconnect the connector.
• Remove 2 nuts.
B INSTALLATION
To install, follow the removal steps in the reverse
order.
STARTER SWITCH
CLUTCH START SWITCH
MODE SWITCH
Refer to "START AND CHARGING" in this section.

LIGHTING RELAY
~ ~ INSPECTION
Check the continuity between the relay terminals
(Fig.
8-330)
(When battery voltage
is applied between® -@ )
m
®
Fig. 8-330
STARTER RELAY
~ INSPECTION
rfii1 Check to see if there is any continuity between
~the relay terminals (Fig. 8-331)
Replace the relay with a correct one when the
result
of inspection is found abnormal.
G)-® ....... Continuity
@-@) ....... No continuity
(When battery voltage is applied between®-@)
G)-® ....... Continuity
@-@) ....... No continuity
®K ®~~
®~® ® •.
Fig. 8-331
CHASSIS ELECTRICAL 8-285
NOTE:
For relay removal, refer to "Connector Handling"
under
"NOTES FOR WORKING ON ELECTRICAL
ITEMS" in this section.
DIODE
(1!] INSPECTION
There should be continuity in either A or B when a
circuit tester
is connected with diode terminal. (Fig.
8-332,8-333, 8-334)
Replace the diode when the result of inspection is
found abnormal.
Terminal No.
2, 4 1, 3
Connection A <±> 8
pattern B 8 <±>
Fig. 8-332
Terminal
No. 4 3 2 1
8 <±>
A <±> 8
Connection <±> 8
pattern <±> 8
B 8 <±>
8 <±>
Fig. 8-333

8-288 CHASSIS ELECTRICAL
METER AND WARNING/INDICATOR LIGHT
GENERAL DESCRIPTION
The circuit consists of the starter switch, meter assembly, vehicle speed sensor, clutch switch, transmission
switch, lighting switch,
turn signal switch, thermo unit, oil pressure unit, Engine Control Module, fuel tank unit,
4WD
SW, oil pressure switch, parking brake switch, brake fluid switch, seat belt switch and illumination
controller.
The meter ASM contains the speedometer, tachometer, voltmeter, engine coolant temperature gauge, oil
pressure gauge, fuel gauge and warning/indicator lights.
The meter warning/indicator lights and
their bulb sockets are a unit, they are installed from the back of the
speedometer assembly.

CHASSIS ELECTRICAL 8-295
5. Oil pressure gauge
Check point Meter Oil pressure Oil pressure Cable
Trouble mode
assembly meter unit harness
5-1 Oil pressure meter needle does not move 0
0 0
0 (3) (4) (1) (2)
5-2 Oil pressure
gauge reading is too low 0
0 0
0
(or
high) (3) (4) (2) (1)
5-3 Needle overshoots
(or goes up to 2151b/in2.) 0
0 0 0 (3) (4) (2)
(1)
NOTE: Figure
in parenthesis "( )" indicates the order of inspection.
6. Fuel gauge
Check point Meter Fuel Fuel tank Cable
Trouble mode assembly
meter unit harness
6-1 Fuel gauge needle does not move 0
0 0 0 (3) (4) (2) (1)
6-2 Even when the tank is filled up with fuel, the needle 0
0 0
0
not reach "F" (3) (4) (2)
(1)
6-3
Even when the tank is not full of fuel, the needle 0
0 0
0
overshoots (or goes to "F") (3) (4) (2) (1)
NOTE: Figure
in parenthesis "( )" indicates the order of inspection.
7. Warning/indicator light
~
Light Parking
Brake Oil Fuel Cable brake fluid pressure tank bulb sw sw sw unit harness
e
7-1 When the parking brake lever is pulled, the 0 0 0
indicator light does not light up. (1) (2) (3)
7-2 Even
when the parking brake lever is released, 0 0 0
the indicator light does not go off. (1) (2) (3)
7-3 While the engine operating,
the oil pressure 0 0
warning light does not go
off. (2)
(1)
7-4 Even
when the tank is full of fuel, the fuel 0 0
warning light lights
up. (2) (1)
7-5 Even
when the tank is empty, the fuel warning 0 0
0
light does not light up. (1) (2)
(3)
NOTE: Figure in parenthesis "( )" indicates the order of inspection.

CHASSIS ELECTRICAL 8-311
7. WARNING/INDICATOR LIGHT
7-1 WHEN THE PARKING 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?
I
YES I NO I
I
• IS THE PARKING BRAKE SWITCH INSTALLED
• DOES THE INDICATOR LIGHT HAVE A BURNED OUT TO THE CORRECT POSITION? BULB, OR IS THE SOCKET POORLY CONNECTED?
I
I
YES I NO j
I
REPLACE THE BULB OR REPAIR • IS THERE CONTINUITY IN THE
THE POOR CONNECTION AT THE CIRCUIT BETWEEN THE
SOCKET PARKING BRAIE SWITCH CONNECTOR 1 B-27 AND
10 C8.QJ (METER)?
I
YES I I NO I NO I
I
• WHEN THE PARKING BRAKE IS I ADJUST THE INSTALLATION POSITION I REPAIR A POOR CONNECTION AT
OPERATED, IS THERE CONTINUITY THE CONNECTORS OR A OPEN
BETWEEN THE SWITCH CONNECTOR CIRCUIT IN THE CIRCUIT
1 I B-271 AND GROUND?
I
I NO I
I
I REPAIR OR REPLACE THE PARKING BRAKE SWITCH I

8-312 CHASSIS ELECTRICAL
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?
I
I I
YES I NO I
I I
• WHEN THE PARKING BRAKE SWITCH CONNECTOR ADJUST THE SWITCH INSTALLATION POSITION,
I B-27lls DISCONNECTED, DOES THE INDICATOR OR REPAIR OR REPLACE THE SWITCH
LIGHT GO
OFF?
I
I
NO I
I
• IS THE BRAKE FLUID SUFFICIENT? J
I
I I
YES I NO J
I
I
• IS THE BRAKE FLUID REPLENISH THE
BRAKE
SWITCH NORMAL? FLUID
I
I
l
YES I NO I
I I
REPAIR A SHORT CIRCUIT REPLACE THE
BRAKE
BETWEEN THE
PARKING FLUID TANK
BRAKE SWITCH
CONNECTOR
1 I B-271 AND 10 [I!QJ' OR THE BRAKE FLUID SWITCH
CONNECTORS
21 C-151 AND10[IlQ]

CHASSIS ELECTRICAL 8-313
7-3 WHILE THE ENGINE IS OPERATING, THE OIL PRESSURE WARNING
LIGHT WILL
NOT GO OFF
• IS THE ENGINE OIL PRESSURE NORMAL? I
I
I I
YES I NO I
I I
• WITH THE OIL PRESSURE SWITCH CONNECTOR REFER TO THE "ENGINE" SECTION OF
~DISCONNECTED, DOES THE WARNING THIS MANUAL LIGHT GO OFF?
I
I I
YES I NO I
I I
• WHILE THE ENGINE IS OPERATING, IS THERE REPAIRctTIORT CIRCUIT BETWEEN 1 [ill CONTINUITY BETWEEN THE OIL PRESSURE SWITCH AND 9 1-10 (METER) CONNECTOR 1~ AND THE BODY GROUND?
I
I
NO I
I
REPLACE THE OIL PRESSURE SWITCH I
7-4 EVEN WHEN THE FUEL TANK IS FULL WITH FUEL, THE FUEL
WARNING LIGHT LIGHTS UP
• WHEN THE FUEL TANK UNIT CONNECTOR
[EIJ1s DISCONNECTED, DOES THE WARNING LIGHT GO OFF?
l
YES I NO I
I
• IS THE FUEL TANK UNIT NORMAL? I REPAIR A SHORT CIRCUIT BETWEEN THE FUEL
TiNK JNIT HARNESS SIDE CONNECTORS 4 F-5 AND 11 [I!QJ (METER)
1
NO I
I
REPLACE THE FUEL TANK UNIT I

8-314 CHASSIS ELECTRICAL
7-5 EVEN WHEN THE FUEL TANK IS EMPTY, THE LOW FUEL
WARNING LIGHT DOES NOT LIGHT UP
• DOES THE WARNING LIGHT HAVE A BURNED OUT
BULB, OR IS THE SOCKET POORLY CONNECTED?
I
I
YES I
I
REPLACE THE BULB, OR REPAIR A POOR
CONNECTION
AT THE SOCKET
I NO I
I· IS THE FUEL TANK UNIT NORMAL? I
I YES I
J
NO I
I
REPLACE THE FUEL TANK UNIT I
I
REPAIR A POOR CONNECTION AT THE CONNECTOR OR A OPEN CIRCUIT IN
THE CIRCUIT BETWEEN THE HARNESS
SIDE CONNECTORS
4[}IJAND 11 IT.IQJ (METER)
•

STARTER SWITCH
Refer to "START AND CHARGING" in this section.
'--LIGHTING SWITCH/DIMMER •
PASSING SWITCH/HEADLIGHT
Refer to "HEADLIGHT AND FOG LIGHT" in this sec-
tion.
TURN SIGNAL SWITCH
Refer to "TURN SIGNAL LIGHT, HAZARD WARNING
LIGHT, CORNERING LIGHT, BACKUP LIGHT AND
HORN" in this section.
ILLUMINATION CONTROLLER
Refer to the "FRONT SIDE MARKER LIGHT, PARKING
LIGHT, TAILLIGHT, LICENSE PLATE LIGHT AND ILLU­
MINATION LIGHT"
in this section.
CHASSIS ELECTRICAL 8-315