1995 ISUZU TROOPER Workshop Manual

5-3 NEEDLE OVERSHOOTS
(GOES
UP TO 215 lb/in2 )
• IS THE CONNECTOR OF THE OIL PRESSURE UNIT [ILl CONNECTED SECURELY?
I
I
YES I
I
• IS THE OIL PRESSURE UNIT NORMAL? I
I
I
YES
I
• IS THERE A OPEN CIRCUIT IN THE CIRCUIT
BETWEEN THE OIL PRESSURE UNIT AND THE OIL PRESSURE GAUGE?
I
I
YES I
I
REPAIR A POOR CONNECTION AT THE CONNECTORS
OR A OPEN CIRCUIT IN THE CIRCUIT
CHASSIS ELECTRICAL 8 -307
I
NO I
I
RECONNECT THE CONNECTOR I
I
NO I
I
REPLACE THE OIL PRESSURE UNIT I
I
NO I
I
• IS THERE A OPEN CIRCUIT IN THE PRINTED CIRCUIT BOARD OF THE METER ASSEMBLY?
I
I
I
YES I NO j
I I
REPLACE THE PRINTED CHECK THE OIL PRESSURE GAUGE,
CIRCUIT BOARD AND REPLACE IT WITH A CORRECT
ONE IF NECESSARY

8-308 CHASSJS ELECTRICAL
6. FUEL GAUGE
6-1 FUEL GAUGE NEEDLE DOES NOT MOVE
• IS THE CONNECTOR OF THE FUEL TANK UNIT(£[]
CONNECTED SECURELY?
I
YES I I NO I
I
• DISCONNECT THE CONNECTOR OF THE FUEL TANK UNIT I CONNECT THE CONNECTOR I
• CONNECT A 3.4W BULB BETWEEN THE HARNESS SIDE CONNECTOR 2 ~AND THE GROUND OF THE FUEL TANK UNIT
• WHEN THE STARTER SW IS TURNED ON, DOES THE FUEL GAUGE NEEDLE FLUCTUATE AFTER ABOUT 90 SECONDS?
I
YES I NO I
I
• IS THERE CONTINUTV BETWEEN THE FUEL TANK UNIT • IS THE CIRCUIT BETWEEN THE FUEL GAUGE AND THE FUEL
CONNECTOR TERMINALS 2 ~AND 1 [£I) ? TANK UNIT NORMAL?
I
I I
l
YES I NO I YES I NO l
I I I
REPAIR A POOR CONNEC-REPLACE THE FUEL TANK • IS THERE A BROKEN WIRE REPAIR A POOR CONNECTION
TION AT THE CONNECTORS UNIT IN THE PRINTED CIRCUIT AT THE CONNECTORS OR A
OR A OPEN CIRCUIT OF THE METER ASSEMBL Y7 OPEN CIRCUIT IN THE CIRCUIT
BETWEEN THE FUEL TANK
UNIT AND THE GAUGE I
I I
YES I NO I
I l
REPLACE THE PRINTED CHECK THE FUEL GAUGE,
CIRCUIT BOARD AND REPLACE IT IF NECESSARY
..

CHASSIS ELECTRICAL 8-309
6-2 EVEN WHEN THE TANK IS FILLED UP WITH FUEL, THE NEEDLE DOES
NOT REACH "F"
• WHEN INSERTING AND PULLING OUT THE CONNECTOR [£;§]OF THE FUEL TANK UNIT SEVERAL TIMES, DOES THE POINTER OF THE FUEL GAUGE STAY AT THE SAME POSITION?
I
YES I NO I
I
• DISCONNECT THE CONNECTOR OF THE FUEL TANK UNIT REPAIR A POOR CONNECTION AT THE CONNECTOR
• CONNECT
THE FUEL TANK UNIT HARNESS SIDE OF THE FUEL TANK UNIT CONNECTOR 1 [£;§]AND 2 [[§] WITH A LEAD WIRE.
•
WHEN THE STARTER SW IS TURNED ON, DOES THE
NEEDLE OVERSHOOT TO "F" AFTER ABOUT 5 MINUTES
I
YES I NO I
I
• REMOVE THE FUEL TANK UNIT • IS THERE A BROKEN CIRCUIT IN THE PRINTED
• DOES THE FLOAT ARM OPERATE SMOOTHLY? CIRCUIT OF THE METER ASSEMBLY?
I
I
I
YES I YES I NO J
I I
• IS THE RESISTENCE
REPLACE THE PRINTED CHECKTHEFUELGAUG~ VALUE OF THE FUEL TANK CIRCUIT BOARD AND REPLACE IT IF UNIT NORMAL? NECESSARY
NO
REPLACE
THE FUEL TANK UNIT

8-310 CHASSIS ELECTRICAL
6-3 WHEN THE TANK IS NOT FULL OF FUEL, THE NEEDLE
OVERSHOOTS (OR GOES UP TO "F")
• DISCONNECT THE CONNECTOR OF THE FUEL TANK UNIT
•
WHEN THE STARTER SW IS TURNED ON, DOES THE NEEDLE STILL POINT TO "F"7
I
I I
YES I NO I
I I
• IS THE CIRCUIT BETWEEN THE FUEL TANK UNIT AND THE • REMOVE THE FUEL TANK UNIT FUEL GAUGE NORMAL?
• DOES THE FLOAT ARM OPERATE SMOOTHLY?
I I
I
I I
YES I NO I YES J
I I
I
• IS THE PRINTED CIRCUIT REPAIR A SHORT CIRCUIT • ARE THE RESISTANCE VALUES OF THE OF THE METER ASSEMBLY IN THE CIRCUIT FUEL TANK UNIT AT "E" AND "F" POINTS GROUNDED SECURELY? NORMAL?
I I
I I I
YES I NO I NO I
I I I
CHECK THE FUEL GAUGE, REPAIR OR REPLACE THE REPLACE THE FUEL TANK UNIT I AND REPLACE IT IF PRINTED CIRCUIT BOARD
NECESSARY
•

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]