belt ISUZU TROOPER 1995 Repair Manual

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RR
DOOR
SW
(RH)
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RR
COURTESY LIGHT
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MAP
LIGHT~
FRT
DOOR
SW
(RH)
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COURTESY LIGHT (RH),
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H-21
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SEAT
BELT,
KEY
&LIGHT
B-1,
REMIND BUZZER
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H-12,""
RELAY & FUSE
BOX,
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14
',,
(FL-1, FL-2)
'~
'
BATIERY
FUSE
BOX IC-10, C-16)
( DOME
LIGHT
/ 1 LUGGAGE
ROOM
LIGHT
1-9 SEATBELTWARNING
LIGHT
, TAILGATE
SW
/
RR
DOOR
SW(LH)
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= /
I RR
COURTESY
LIGHT(LH)
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FRT
DOOR
sw.
(LH)
-
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B-22
FRT
COURTESY LIGHT
(LH)
KEY
REMIND SW,
(STARTER
SW)
SEAT BELT
SW
(LH)
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FRT
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SW-RH
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O.SB
O.SB/W
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O.SGR/W
( ,,o.J-.r.~ FRT COURTESY
UGHT-LH
FRT
COURTESY
UGHT-RH
O.SR/W
O.SR!W
RELAV;TAILI•I ITO PAGE
8-781
KEY
REMIND
SW
CST ARTER
SW1
O.SR/W O.SR/W
O.SR/W
O.SR/W O.SlJY
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8 -136 CHASSIS ELECTRICAL
MAP LIGHT SWITCH/BULB
~ INSPECTION
~~~ Check to see if there is any continuity between
the terminals and the body while operating the
map light switch.(Fig.8-171)
Repair
or replace the switch when the result of
inspection is found abnormal.
I" ~ [IT]
ron
0~/~ ~
'
~· 1 Body
n
ON 0 {)
OFF
Fig. 8-171
B REMOVAL
E) INSTALLATION
To install, follow the removal steps in the everse
order.
SEAT BELT SWITCH
~ INSPECTION
I~ l Check to see if there is any continuity b tween
the terminals of the seat belt switch. (Fig 8-173)
Replace the switch when the
result of ins ection
is found abnormal.
Switch operation
ON (unfasten the seat belt)
OFF (fasten the seat belt)
Preparation: Disconnect the battery ground cable. Fig. 8-173
Fig. 8-172
1.
Map light switch
• Pull the map light body downward to release
the
lock. (Fig. 8-172)
• Disconnect the connectors of the map light
and the sun roof switch.
2. Socket/bulb
• Turn the socket counterclockwise to remove
it.
3.
Bulb
• Pull out the bulb from the socket.
B REMOVAL AND INSTALLATION
1++1 Refer to Section 10 "BODY", for "SEAT ELT"
removal and installation steps.
WARNING BUZZER
The warning buzzer sounds to remind the dr ver to
fasten seat belts, if the key was left in the tarter
switch,
or if the headlights were left on. (Fig. -174)
Seat belt warning light
Seat belt
sw
Starter sw
8
Warning buzzer
DoorSW (Driver
side)
Fig. 8-174
..

CHASSIS ELECTRICAL 8-137
Warning function
Operational conditions
The
warning light in the meter assembly turned on about 6
seconds
from the moment the starter switch is turned on.
Fasten the seat
belt
The buzzer sounds for about 6 seconds when the starter switch
is turned on with the seat belt switch on (when the seat belt is
not used).
Key left in The
buzzer sounds when both the key remind switch and the
FRT
door switch -LH are turned on.
starter switch
To
stop the sound of the buzzer, turn on the starter switch.
Taillights left on The
buzzer sounds when the starter switch is turned
from the
"on• to "off" position while the taillights are on.

8-138 CHASSIS ELECTRICAL
~ INSPECTION
~ Inspection of the warning buzzer circuit ,,,
~ Remove the warning buzzer connector to mea-
sure the continuity and
voltage between the
harness side connector terminals. (Fig. 8-175)
~
-Harness side
Terminal Wire Connected Item to be Connecting Checking Standard color to checked terminal conditions
When Continuity
unfastened
5 L Seat belt SW Continuity 5-Ground Seat belt When No continuity
fastened
3 G/R Tail relay 3-Ground Lighting switch ON Approx. 12V
Key reminder inserted Approx. 12V
~ 4 P/L sw Voltage 4-Ground Starter
(Starter SW)
key
removed ov
6 L/Y Fuse C-10
(lOA) 6-Ground Starter switch ON Approx. 12V
Door switch open Continuity
1 GR/R (on driver's 1-Ground FRT
seat
side) Continuity door-LH No continuity closed
2 B Ground
2-Ground -Continuity
Fig. 8-175
~

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.

8-288 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 8-317
TABLE FOR METER CONNECTOR TERMINAL CONNECTIONS
~-""""""', 1----""'12 1----""'1! 6 1----l 6 [Iill
1----""'1 ~ 9 1---""'l,o
®
0 0
0
® @
0 0 ~
~m© © © © ©'--m ~~0
0 !III
1 2 3 4 5 6 7 8 9 1011 1213141516 1 2 3 4 56 7 8 9 10111213141516
w~~~~~~~~ ~~~~~~m rn~~~~~~ ~~nn~~m
~ I J BLACK WHITE
~r o. DTI -na No. ~
. IJJ:Q] -
. ~ [ill] . -. 1 Ground 1 Turn
signal indicator light (right)
1 -2 Engine coolant temperature gauge 2 ABS or RWAL indicator light 2 L
position
3 Tachometer 3 High-beam indicator light 3 2 position 4
Ground
4 High-beam
indicator light 4 3 position 6 Illumination light (+I 5 -5 D position
6 Illumination light(-) 6 Ground 6 N position 7 Winter drive 7 Speedometer 7 R position 8 Power drive, upshift 8 Speedometer 8 -9 Upshift 9 Oil pressure warning light 9 AfT shift control unit 10 -10 Brake warning light 10 P position 11 -11 Fuel warning light 12 Check engine 12 Charge warning light 13 Seat belt 13 Illumination (+) 14 StarterSW 14 Illumination (-) 15 4WD 15 Fuel gauge 16 Turn signal indicator light (left) 16 Oil pressure gauge
Fig. 8-343

Supplemental Restraint System 9J-3
GENERAL DESCRIPTION
RESTRAINT DEVICES
The Supplemental Restraint System(SRS) helps
supplement the protection offered by the driver and front
passenger seat
belts by deploying an air bag from the
center of the steering
wheel and from the top of the right
side of the instrument
panel.
~ Deployed Air Bag
~ Knee Bolster
~ Seat Belt
The air bag deploys when the vehicle is involved in a
frontal crash of sufficient force up to 30 degrees off the
centerline of the vehicle. To further absorb the crash
energy there is a knee
bolster located beneath the
instrument
panel for both the driver and passenger, and
the steering
column is collapsible.

9J-8 Supplemental Restraint System
DEFINITIONS
AIR BAG -An inflatable cloth cushion designed to
deploy in certain frontal crashes. It supplements the
protection offered by the seat belts by distributing the
impact load more evenly over the vehicle occupant's
head and torso.
ASYNCHRONOUS -Performed in a non-periodic
fashion,i.e.no defined time or interval.
B+-Battery voltage, the voltage available at the battery
at the time of the indicated measurement. With the key
"ON" and the engine not running, the system voltage will
likely be between 12 and 12.5 volts. At idle the voltage
may be 14 to 16 volts. The voltage could be as low as 1
0
volts during engine cranking.
BULB
CHECK-The DERM will cause the "AIR BAG"
warning lamp to flash seven times and then go "OFF"
whenever the ignition switch transitions to the RUN
position from any other ignition switch position and no
malfunctions are detected.
"CONTINUOUS MONITORING"-Tests performed by
the DERM on the
SRS every 1 00 milliseconds while
"Ignition
1" voltage is in the normal operating voltage
range at the DERM.
DATA LINK CONNECTOR(DLC)-Formerly "ALDL'', a
connector which allows communication with an
off-board computer, such as a scan
tool.
DATUM LINE-A base line parallel to the plane of the
underbody or frame from which all vertical
measurements originate.
DEPLOY-To inflate the air bag.
DEPLOYMENT
LOOPS - The circuits which supply
current to the inflator modules to deploy the air bag.
DERM -Diagnostic
energy reserve module which
provides reserve energy to the deployment loops and
performs diagnostic monitoring of
all SRS components.
DIAGNOSTIC TROUBLE CODE(DTC) -Formerly
"Code,"a numerical designator used by the DERM to
indicate specific
SRS malfunctions.
DRIVER CURRENT SOURCE-An output of the DERM
which injects current into the driver inflator module circuit
during the "Initiator Assembly Resistance
Test."
DRIVER INFLATOR
MODULE-An assembly located in
the steering wheel hub consisting of an inflatable air bag,
an inflator and an initiator.
DUAL
POLE ARMING SENSOR-A sensor on the high
side(power side) of the deployment loops that is
calibrated to supply voltage to the inflator modules when
the vehicle velocity changes are severe enough to
warrant arming of the air bags in preparation for
deployment.
EEPROM -Electrically Erasable Programmable Read ~
Only Memory. Memory which retains its contents when
power
is removed from the DERM.
FORWARD LH DISCRIMINATING SENSOR-A sensor
on the low side(ground side) of the deployment loops
which is calibrated to ground the inflator modules when
the vehicle velocity changes are severe enough to
warrant deployment of the air bags.
FORWARD RH DISCRIMINATING SENSOR-A sensor
on the low side(ground side) of the deployment loops
which
is calibrated to ground the inflator modules when
the vehicle velocity changes are severe enough
to
warrant deployment of the air bag.
FORWARD LH SENSOR Eng-Room HARNESS-An
assembly of two correct carrying wires which connects
the Forward
LH discriminating sensor to SRS harness.
FORWARD RH SENSOR Eng-Room HARNESS
JUMPER-An assembly of two current carrying wires
which connects the Forward
RH discriminating sensor to
the
SRS harness.
HIGHER PRIORITY FAULT-Each diagnostic trouble
code
is assigned a priority based on the detectability with
other DTCs present. The priority corresponds to the
detectability of the malfunction ONLY, and does NOT
relate to the criticality of the malfunction with respect to ~
deployment or non-deployment under any given
condition.
IGNITION CYCLE -The voltage at the PERM "Ignition
1"
inputs, with ignition switch "ON," is within the normal
operating voltage range for at least ten seconds before
turning ignition switch
"OFF."
IGNITION1
-A battery voltage(B+)circuit which is only
powered with the ignition switch in the RUN,BULB
TEST,or START positions.
INITIATOR-The electrical component inside the inflator
module which, when sufficient current flows, sets off the
chemical reaction that inflates the air bag.
"INITIATOR ASSEMBLY RESISTANCE TEST"-Tests
performed once each ignition cycle when no
malfunctions are detected during "Turn-ON" or
"Continuous Monitoring." This test checks for the correct
DERM configuration for the vehicle, shorts to
"Ignition 1"
in the deployment loops, high resistance or opens in the
"Driver
Side High," "Driver Side Low," "Passenger Side
High"
and "Passenger Side Low" circuits and measures
the resistance of the inflator assembly consisting of: 1)
Initiators, 2) SRS coil assembly(driver side only), 3)
Connectors and associated wiring.
NORMAL OPERATING VOLTAGE RANGE-The ~
voltage measured between the DERM "Ignition 1" ·
terminals and "Ground" terminals is between 7.25 and 16
volts.
•