light ISUZU TROOPER 1995 Workshop Manual

8-338 CHASSIS ELECTRICAL
CIRCUIT DIAGRAM
+ o---I..::B..::Bi::.:RCj
~
B
~~P-1ol~ BODY ENG. FRAME
LIGHTINGSW (COMBINATION SWI
SODV-LH II
DUCT II
"' .. 0
rJ ill 0
13
C-3 15A TURN, BACK
~ ~ ._ ~~ ~~ ~ "~ ~~ ~m ~~ 0 0 ~= :lab !Sill ~= ~= ~= .. ~ ~~ 1-CJ 1-CJ 1-.., ~ ~ f. g :ag 0 g
g t:.
/>IT SHIFT INDICATOR (METERI
IDOHCI ' ~~~ 11~--------------------------------------------------------J~~g ___________ J
Fig. 8-392
2L
12
' t: ~:
il o• ~: ... : "!• o, '
1111

'"T1 cO' co w (
RELAY
& FUSE
BOX
(FL-11
RELAY:
NC
COMPRESSOR
BLOWER
MOTOR
RELAY:
NCTHERMOSTAT
,,-;~
H-42'
NC:
AIR
CONDITIONING
(
PRESSURE
SW
RECEIVER
DRIER
B-19
FUSE
BOX
(C-19,
C-201
B-36 RELAY;
HEATER
& NC
NCSW FAN
SW
AND
HEATER
BEZEL
ILLUMINATION
LIGHT
(
MAGNETIC
CLUTCH
INC
COMPRESSOR)
;g ::0 ~ r-0 0 ~ 0 2
n :::J: )> en en Cii m r­m ~ ::u n )> r-eo I w ~ ...a

8-356 CHASSIS ELECTRICAL
SUN ROOF SWITCH
Sun roof operation can be controlled by pushing
continuously the sun
roof switch to activate the sun
roof control
unit and sun roof motor.
While the switch is being pushed
to the "OPEN" side,
the sun roof stops about 165mm (6.5in) before
fully
open position. Push the switch again to the "OPEN"
side to open it fully. When the switch is being continu­
ously pushed to the
"CLOSE" side, the sun roof stops
about
180mm (7 .1 in) short ofthe fully closed position
and remains
in this state. Push the switch again to the
"CLOSE" side to close it completely.
~ INSPECTION
I tjt I Check the continuity between the switch connec­
tor terminals. (Fig. 8-405)
When there is no continuity, repair or replace the
sun roof switch.
3
CLOSE
Fig. 8-405
E) REMOVAL
Preparation: Disconnect the battery ground cable.
Sun roof switch
Fig. 8-406
1. SUN ROOF SWITCH
• Pull down the switch housing. (Fig. 8-406)
•
Disconnect the harness connectors of the sun
roof.
• Disconnectthe harness connectors ofthe map
light.
E_3 INSTALLATION
To install, follow the removal steps in the reverse
order.
SUN ROOF CONTROL UNIT
Fig. 8-407
When the sun roof switch is pushed either to the
"OPEN" or "CLOSE" side, either the open or close
relay in the control
unit is activated to rotate the sun
roof motor either in the open or close direction.
The control unit also receiving a signal
from the safety
stop switch
or limit switch to control the operation of
the sun roof motor.

8-382 CHASSIS ELECTRICAL
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)-AIR BAG
The system consists of the starter switch, Diagnostic Energy Reserve Module (OERM), dual pole arming
sensor,
SRS coil assembly, inflator module (driver & passenger), forward sensor and warning light.
SRS is mainly comprised of the deployment loop and the DERM.
The main function of the deployment loop is to flow current into the inflator modules inside the steering
wheel (driver side) and the passenger side instrument panel (passenger side) to inflate the air bag. The
forward sensor
(LH and /or RH) gets activated by a shock caused by collision during running of a vehicle, the
current
from the battery flows into the inflator modules through dual pole arming sensor, so that the air bag
is
inflated.
The DERM supplies the current to the deployment loop to ensure that the air bag is inflated, if the power
circuit between battery and deployment loop is cut off by the shock of collision.
In
addition, the DERM monitors a voltage drops between components, and if the voltage drops below the
specified
value, the driver is alerted by the "AIR BAG" warning light in meter assembly.
Refer to Section 9J "SUPPLEMENTAL RESTRAINT SYSTEM (SRS)-AIR BAG" for details.
OPERATION OF THE CIRCUIT
DRIVER
INFLATOR MODULE
FOWARD
SENSOR-LH
D
D
STARTER SW
D
1
DUAL POLE ARMING SENSOR
PASSENGER
INFLATOR
MODULE
FORWARD
SENSOR-RH
NOTE: Arrow marks "c::::>" indicate the direction of current
Fig. 8-438
•

Fig. 9A-12
1. Front console assembly
2. Lower cluster assembly
• Refer to FOG LIGHT SWITCH removal
steps in section 8 CHASSIS ELECTRICAL
3. Radio
• Remove two screws.
• Disconnect the connector.
• Disconnect the antenna cable socket.
INSTALLATION
To install, follow the removal steps in the reverse
order.
SPEAKER
B REMOVAL (FIG. 9A-13)
Preparation: Disconnect the battery ground
cable. (Fig. 9A-13)
Fig. 9A-13
RADIO 9A-7
1. Speaker grille
• Pull the grille to release the locks.
2. Speaker
• Remove four screws.
• Disconnect the connector.
8 INSTALLATION
To install, followthe removal steps in the reverse
order.
TWEETER ASSEMBLY
B REMOVAL (FIG. 9A-14)
Preparation: Disconnect the battery ground
cable.
l. CUp j
Connector
0
Fig. 9A-14
1. Tweeter assembly
• Hold the tweeter assembly and pull it to
release the clips.
•
Disconnect the connector ..
8 INSTALLATION
To install, followthe removal steps in the reverse
order.

---------------~-~---
CRUISE CONTROL 9B-1
SECTION 98
CRUISE CONTROL
CONTENTS
General description ................................ .
Parts location .......................................... .
Circuit diagram ....................................... .
Diagnosis ................................................. .
On-vehicle service ................................. ..
Brake switch adjustment ................ ..
Clutch switch adjustment ................ .
Actuator
cable adjustment .............. .
Starter switch ................................... .
Cruise control main switch .............. .
GENERAL DESCRIPTION
98-1
9B-3
98-4
9B-7
98-28
9B-28
9B-28
9B-28
9B-28
9B-30 Cruise
control
switch
(combination switch) ........................ 98-31
Cruise control unit .......................... ... 9B-32
Pump
& actuator .................. .............. 9B-34
Brake switch ....................................... 9B-36
Clutch switch .............................. ....... 9B-36
Mode switch .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 9B-37
Vehicle speed sensor
(incorporated in speedometer) ......... 9B-38
Diode
.. .. .. .. .. .. . .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. . .. .. .. 9B-38
Cruise control main relay .................. 9B-39
The circuit consists of the starter switch, cruise control main switch, cruise control switch, cruise control unit,
pump &actuator, brake switch, clutch switch (M/T), mode switch (A/T), vehicle speed sensor (incorporated into
the speedometer) and indicator light.
The cruise control keeps
the vehicle running at a fixed speed until a signal canceling this fixed speed is received.
When the main switch "AUTO CRUISE" is turned on with the vehicle in the running mode, the battery voltage
is applied
to the control unit. When a signal from the control switch is input to the control unit while the vehicle
is in this state, the cruise control actuator is activated to operate the system .
.._, Also, while the system is operating, the "AUTO CRUISE" indicator light in the indicator box lights up.
1. SET /COAST SWITCH FUNCTION
1) SET function: When the SET/COAST switch
is pressed and released
with the main switch
on, the speed at
which the vehicle is running
at that moment is stored in the memory, and
the vehicle
automatically runs at the speed
stored.
2) COAST-DOWN function: When the SET/
COAST switch is kept on while the vehicle in
running, the vehicle decelerates
during that
time. The speed at which vehicle is running
when the control switch is turned off is stored
in the
memory, and the vehicle automatically
returns
to the stored speed.
3) Tap-down function: When the SET/COAST
switch is turned on and off instantaneously
while the vehicle is running, the vehicle decel­
erates a mile for each on/off operation. The
vehicle speed at
which the vehicle was run­
ning when the SET/COAST was turned off last
is stored in the
memory, and the vehicle auto­
matically returns to this stored speed.
2. RESUME/ ACCEL SWITCH FUNC­
TION
1) Resume function: When the RESUME/
ACCEL switch is turned
on/off after the system
is
temporarily deactivated by pressing the
brake or clutch pedal while the vehicle is
running,
the vehicle resumes. The speed
stored before the system
was released.
2) Accelerate function: When the RESUME/
ACCEL switch is kept on after the system is
released completely, the vehicle accelerates
its speed
during that time. The vehicle speed
at
which the vehicle was running when the
switch
was turned off is stored in the memory,
and the vehicle automatically returns to this
speed.
3) Tap-up function: When the RESU ME/ACCEL
switch is
turned on and off instantaneously
while the vehicle is running, the vehicle decel­
erates a mile for each on/off operation. The
vehicle speed at
which the vehicle was run­
ning when the switch was turned off last is
stored in the
memory, and the vehicle auto­
matically returns to this stored speed.

, cCi" <0 CD I ....
( (
1-10
CRUISE CONTROL SW,
CRUISE
CANSEL SW,
!COMBINATION
SWl
VEHICLE
SPEED
SENSOR
!METER}
i
CRUISE MAIN, AUTO CRUISE
INDICATOR LIGHT
CLUTCH
PEDAL
IM[T)
~
. //
BRAKE PEDAL
~~
RELAY &
FUSE BOX
B-2
vi"""
(FL-1
FL-2}
C-3g\j;~
PUMP&VSV
RELAY:
CRUISE
MAIN BATTERY--
/
H-41
··,.
,:-,
\
·.,"-
~DIODE
8-45
'"-FUSE
BOX IC-3, C-4, C-10,
C-14)
CRUISE
CONTROL
MAIN
SW
(
~ ~ 0 n ~ 0 z
n ::D c c;; m n 0 ~ 0 r-fD OJ I w

CRUISE CONTROL 98-7
DIAGNOSIS
~ QUICK CHART FOR CHECK POINTS
"0 !!:! 0 0 CD 0 <( ::I ;: w ... Cl) Qi :0 0 <( Cl) 0 0 g Cl) u .r: .r: CD 0. 0 Cl) ::I CD CD .!!! .!!! c: i==" 0 ""'" E :c 0 ::I 0 Qi :::1 "0 c: :0 en ... 0 '6 Cl) Cl) ::I ::I ·;a ::I :::1 ... u w w .... ::I CD .,. ·= > .s <( ~ 1-u
0
0 0
0
0 0
0 0
0 0
0 0 1. Cruise control inoperative (
1) (2) (12) (3)
(4) (51 (6) (7) (8) (9) (10) (11)
0 0
0
0 0 0 2. Cruise
speed unstable (5) (3) ( 1) (2) (6) (4)
3. Cruise control cancels 0 0 0
0 0
(51 (
1) (2) (4) (3)
0 0 0 4. RESUME
inoperative (3) ( 1) (2)
0
0 0 5. ACCEL or TAP-UP
inoperative (3) ( 1) (2)
0
0 0 6. COAST or TAP-DOWN
inoperative (2) ( 1) (3)
0 0 0 0 7. Cruise control
cancel (4) ( 1) (2) (3)
0
0 8. Cruise control does not operate to kick down (2) (
1) from 0/D to 3rd, when cruising speed is less than approximately 3 mph or more from preset
speed (A/T). However, avoid the 0/D cancel in the following conditions:
1) When the cruising speed is 75 mph or more
during the
Accelerate function. 21 When accelerated from the speed at 70 mph. 3) When the cruising speed is 75 mph or more
during the Resume function.
4) When the memory speed is less than 3 mph
during the Resume function.
51 When resumed from the memory speed at
6 mph or less. 61 While in the Tap-up function.
9. Indicator light does not light 0 0 0
0 (
1) (4) (2) (3)
NOTE: Figure in parenthesis"()" indicates the order of inspection.

98-10 CRUISE CONTROL
7. Cruise control does not cancel
CHECK POINTS POSSIBLE CAUSE COUNTERMEASURE
Clutch switch Point does not switch to OFF Replace
Brake switch
Normal close point does not switch to OFF Replace
Normal open point does not switch to ON
Mode switch Point does not switch to OFF Repair or replace
Cruise control unit
Defective citcuit inside control unit Replace
Transmission Control Open circuit for TCM or defective circuit inside Refer to Section
7 A 1
Module (TCM) control unit
8. Cruise control does not operate to kick down from 0/D to 3rd, when cruising speed is less than
approximately 3 mph or more from preset speed (A/T)
CHECK POINTS POSSIBLE CAUSE COUNTERMEASURE
TCM Defective circuit inside TCM Refer
to Section 7 A 1
Cable harness Open circuit for TCM
Repair
9. Indicator light does not light
CHECK POINTS POSSIBLE CAUSE COUNTERMEASURE
Fuse
C-10 (10A) Burned out Replace
Indicator
bulb Bulb filament burned out Replace
Cable
harness Disconnected connector, Open circuit Repair
Cruise
control unit Defective circuit inside control unit Replace
..

CRUISE CONTROL 9B-27
6. CRUISE INDICATOR LIGHT DOES NOT LIGHT (CHART 6)
• DOES THE CURISE CONTROL FUNCTION NORMALLY?
• DISCONNECT THE CONNECTOR OF THE INDICATOR
BOX.
•
TURN THE STARTER SWITCH ON.
• IS THERE A BATIERY VOLTAGE APPLIED BETWEEN
THE
HARNESS SIDE CONNECTOR 3 (EIT] AND THE
GROUND?
• RECONNECT THE CONNECTOR OF THE INDICATOR BOX
• IS THERE BATIERY VOLTAGE APPLIED
BETWEEN 11 B-91 AND THE GROUND?
CHECK THE CRUISE CONTROL SYSTEM. (REFER
TO CHARTS 1, 2, 3 AND 4.)
REPAIR A POOR CONNECTION OF THE CONNECTOR OR AN OPEN CIRCUIT BETWEEN THE FUSE C-10
(10A) AND 3 [Ej1].
•
REPAIR A POOR CONNECTION OF THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 4[f"j]JAND 11 B-9 I.