wheel ISUZU TROOPER 1995 Workshop Manual
[x] Cancel search | Manufacturer: ISUZU, Model Year: 1995, Model line: TROOPER, Model: ISUZU TROOPER 1995Pages: 1928
Page 1213 of 1928
CHASSIS ELECTRICAL 8-23
REFERENCE TABLE OF FUSE, FUSIBLE LINK AND CIRCUIT BREAKER
FUSE
'--"' (Relay and fuse box)
Fuse No. Capacity
Indication on· label Parts (Load)
F-1 --
-
F-2 10A 02 SENSOR HEATER Oxygen sensor
F-3 15A HORN HAZARD Horn, Horn relay, Horn SW, Hazard warning SW,
Flasher
unit, Anti-theft horn, Anti-theft controller
F-4 15A
H/LAMP-LH Headlight (LH), High beam indicator light, Dimmer·
passing SW, Cornering light SW, Fog light SW, Fog
light relay, Cornering light, Cornering light relay
F-5 15A
H/LAMP-RH Headlight (RH), Dimmer·passing SW
F-6 ---
F-7 --
-
F-8 15A (FRT FOG) Fog light, Fog light relay
F-9 20A ABS Hydraulic unit, Rear wheel anti-lock brake controller,
Electronic brake control module
F-10 15A FUEL PUMP
Fuel pump
F-11 ---
F-12 15A TAIL Tail
relay, Lighting SW, FRT side maker light, Parking
light, Taillight, Trailer harness connector, Illumination
controller, Illumination light, Glove
box SW, License
plate light, A/T shift indicator control unit
(Fuse Box)
Fuse No. Capacity
Indication on label Parts (Load)
C-1 10A STARTER RELAY Starter relay, Clutch start SW (M/T), Mode SW (A/T),
Anti-theft controller, DERM (SRS)
C-2 15A (SEAT
HEATER) Seat heater SW (LH & RH), Seat heater (LH & RH)
C-3 15A TURN BACK Transmission control module, Turn signal SW, Front
turn signal light, Rear turn signal light, Turn signal
indicator light, Flasher unit, Cornering light relay,
Backup light, Backup light SW (M/T), Mode SW (A/T),
A/T shift indicator control unit, Lighting SW, A/T shift
lock control unit, A/T shift indicator, Cruise control
unit, Cancel SW
Page 1214 of 1928
8-24 CHASSIS ELECTRICAL
(Fuse Box)
Fuse No.
Capacity Indication on label Parts (Load)
C-4 10A
ELEC.IGN. Cruise control unit, Rear defogger SW, Rear defogger
relay, Rear
defo9ger SW indicator light, Clutch SW
(M{T), Transmission SW-1, 2 (M!T), Transmission
SW-3, 4 (M{T), Cancel
SW (Combination SW), Cruise
control main
SW, Cruise control main relay, Cruise
control indicator light, Cruise control
SW, Door mirror,
Door mirror defogger SW, AfT shift lock control unit,
Power window relay, Electronic brake control module,
Transmission control module, G sensor, Upshift-2
relay, Upshift indicator (Meter)
C-5 15A FRTWIPER &WASHER
Windshield wipt~r and washer SW, Windshield wiper
motor, Windshit~ld washer motor, Windshield wiper
intermittent relay
C-6 10A RR WIPER & WASHER
Rear wiper & washer SW, Rear washer motor, Rear
wiper motor, Rear wiper intermittent relay
C-7 10A (H/LAMP WIPER) Headlight wiper SW, Headlight wiper motor, Headlight
washer motor, Headlight
wiper timer
C-8 15A ENGINE Generator, ECM main relay, V.S.V; EGA, V.S.V: canister,
V.S.V: intake air
(DOHC)
C-9 15A IGN. COIL Ignition control module, Engine control module
C-10 10A METER GAUGE Vehicle speed stmsor, Remind Buzzer, Meter and
gauge
(Voltmeter, Engine coolant temperature gauge,
Tachometer, Speedometer,
Oil pressure gauge, Fuel
gauge),
Indicator and warning light (Anti-lock brake
system, Rear wheel anti-lock, Seat belt, check engine,
Low fuel, 4WD,
Oil pressure, Upshift, Brake system,
Charge,
AfT oil temp, Cruise control indicator light,
Check trans indicator light,
Power drive indicator
light,
Winter drive indicator light), 4WD SW, Parking
brake SW, Seat belt SW, Brake differential SW
Electronic brake control module, Engine control
module, Rear wheel anti-lock brake controller
C-11 10A (AUDIO[ACCJ) MIRROR Audio, Door mirror, Door mirror control SW, Door
mirror folding SW, Digital clock, Speaker
C-12 20A CIGARETTE Cigarette lighter
C-13 10A
ANTI THEFT Anti-theft controller
C-14 15A
STOP AfT CONT Stoplight SW (w/o cruise control), Brake SW (w/cruise
control), Rear wheel anti-lock brake controller,
Stoplight, Transmission control module, Electronic
brake control module, Trailer harness connector,
Cruise control unit,
AfT shift lock control unit, Lockup
off relay
C-15
20A (AUDIO[B]) Horn,
Horn relay, Horn SW, Hazard warning light SW,
Flasher unit, Anti-theft horn, Hazard warning light,
Audio
•
Page 1216 of 1928
8 -26 CHASSIS ELECTRICAL
FUSIBLE LINK
(Relay and fuse box)
Fusible link No. Capacity Indication on label
FL-1 BOA MAIN
FL-2 50 A KEYSW
FL-3 30A ECM
FL-4
- -
FL-5 --
FL-6 40A (ABS
4-WHEEL ONLY)
ECM: Engine Control Module
ABS: Anti-lock Brake System
•
Page 1218 of 1928
8-28 CHASSIS ELECTRICAL
DIODE LOCATION
Relay & fuse box
Fuse box
Diode List
Connector X-14
X-15 B-39 8-40 8-43 8-44
B-45 8-46 No.
~
Corner-Dome Li-Anti-Anti-theft
Mode Cruise ing ECM ghtAnti-
theft Light
switch control EBCM
light
theft remind RWAL
DOHC 0
0 0 0
0 0 0 0
SOHC 0
0 0 -0 -0 -
ECM:
Engine Control Module, TCM: Transmission Control Module1
A/C: Air Conditioning, RWAL: Rear Wheel Anti-Lock, EBCM; Electronic Brake Control Module
Fig. 8-47
•
Page 1220 of 1928
8-30 CHASSIS ELECTRICAL
Connector No.
Cable harness
Location Parts (load)
1jC-39I Windshield washer motor
21 C-391 Upshift-1 relay, Intermittent relay (Front)
31 C-391 Windshield wiper motor
41 C-39j Vehicle speed
sensor, Hazard warning switch,
Turn
signal indicator (Meter), Meter assembly
sl C-391 Fender-RH Headlight wiper timer, Headlight washer motor
Engine room
harness Engine Control Module (ECM)
main relay, Fuel
71 C-391 pump relay, Cruise control main relay, Cruise
control main switch, Air Conditioning relay,
Lockup off relay, Upshift-2 relay, Transmission-
1, 2 switch
al C-391 Vacuum pump and vacuum switching valve
I C-451 Rear wheel anti-lock controller
sl c-asl
Body-FRT Electronic brake control module, Data link
connector
I C-961 Front end Rear wheel
anti-lock valve
I E-281 Knock sEmsor module (DOHC), ECM, Oxygen
Common sensor (SOHC)
I E-291 chamber Knock sensor (DOHC), ECM, Oxygen sensor
(DOHC)
Engine
ECGI
I E-30 I harness Duct (DOHC) Ignition control
module
Common chamber
ECM, AfT Shift indicator control unit, Data link
I
E-311 (SOHC) connector, Knock sensor (DOHC)
~ Chassis harness Frame
Rear wheel anti-lock valve
11-391 Instrument
harness
Body-FRT Audio
IM-161 Transmission
Engine Transmission control module harness
Rear defogger
relay, Rear defogger, Tailgate
~
key switch, Tailgate lock actuator, Rear washer
motor, A:ear wiper and washer switch, Rear
wiper motor, Stoplight switch, Brake switch,
High
mount stoplight
Rear body Body-RR
harness Taillight, Stoplight, Stoplight switch, Brake
switch,
near turn signal light, Backup light,
~
Backup light switch, Mode switch, License plate
light, Lu!;)gage room light, Trailer harness con-
nector
(Stoplight, taillight), License plate light
~ DERM
00 SRS harness Body-FRT
DERM, Forward sensor, Inflator module (Driver
& passenger),
SRS coil assembly
•
Page 1260 of 1928
I ..
8 -70 CHASSIS ELECTRICAL
When placing a live inflator module on a bench
or other surface, always face the bag and trim
cover up, away from the surface. This is neces
sary so that a free space is provided to allow the
air bag to expand in the unlikely event of acci·
dental
deployment.
4. Steering wheel
• Refer to STEERING WHEEL REPLACEMENT in
Section 3F4.
5. Lighting switch (Combination switch)
• Disconnect the switch connector.
• Remove four screws.
• Remove the lighting switch together with SRS
coil assembly.
'\f CAUTION:
Do not remove SRS coil assembly from the com·
bination switch assembly.
E) INSTALLATION
To install, follow the removal steps in the reverse
order, noting the
following points.
1. Check to see if the vehicle is in the straight driving
condition and turn the rotary section of the SRS
coil assembly provided to the upper surface ofthe
lighting switch (combination switch) clockwise
fully until it stops. Then from where it stops, turn
it back about 3 rotations to set the alignment
marks together before installing the steering
wheel. (Fig. 8-83)
Alignment mark
Fig. 8-83
2. Tighten the steering shaft nut to the s ecified
torque.
Nut torque N·m (lb.ft)
3. When connect the double lock type of nflator
module connector, insert the connecto com
pletely
and lock at outside. Imperfect locki g may
cause malfunction of SRS system circuit.
4. When installing the steering cowl, be sure o pass
the harnesses
through the route as show in the
illustration so that the starter switch, th com
bination switch and the inflator module
will not get caught. (Fig. 8-84)
Starter switch
harness
Combination
switch harness
~~ ~
Fig. 8-84
cowl
•
Page 1320 of 1928
8 -130 CHASSIS ELECTRICAL
CIRCUIT DIAGRAM -LONG WHEEL BASE
39/G 38/'(
~
10 H -26
~ ~ ~ .. ~ 0 ~ .. "' 0 0 0 ~ ~ ~ .. .. 14 ~ 0
0
~ ~ ~-....
~ .. " ~ 0 il Q~ iO z :J"' Zll: ~ "! 1:':.~ -~ 0 ~"' ~ .. ~!! !:; ~g HI 13 !;( ,. til
~ 1 ,. ~ 1 'I' 1-~ iS 'i: ,.
" " ::J ::J ::J ::J a! > ~ ~ i:; .... "' ~ ~ .. .., ~ ~ 0
0 0: 0: II:
8 :::1
:::1 :::1 8 8
8 a: a: 1-tE a: " e:
~ .... ~ ~
..
~ B-1 8-8 8-1 0 .. ~ ~ ~ 0 .... "! " " i 0 .. .. 0
0 " .. 0 DIODE
0.6 GRIS 0.6 GRIW
m DIODE .. H • 32 0
DOME UGHT CW/TIMERI ~ " ~ -----------------------.. i 0 " " m .. .. .. 0
0 0 ~ " .. 0
m ..
~ ~
,. 0
~ ~ "
" " 0 §
§ ~ 8 "
" tE "
" 1-e: m N
------------------------BOOY-RR 11
BODY -RH II
80DY·CTR II
Fig. 8-160
Page 1330 of 1928
._, '•'
8 -140 CHASSIS ELECTRICAL
E) REMOVAL AND INSTALLATION E) REMOVAL (FIG. 8-180)
l••l Refer to "START AND CHARGING" in this sec-Preparation: Disconnect the battery ground cable.
tion for starter switch removal and installation
steps.
DIODE
~ INSPECTION
There should be continuity in either A or B
when a circuit tester is connected with diode
terminal. (Fig. 8-178, Fig. 8-179)
Replace the diode when the result
of inspection
is found abnormal.
I B-391 (For short wheel base)
I B-431
Terminal No. 4 3
Connection A t'+i i-)
pattern B I.=,J 1+1
Fig.
8-178
I B-391 (For long wheel base)
Terminal No. 3 2
A (-) 1.!,>
Connection (~!
pattern 1+1 {-) B (-!
Fig. 8-179
1
'.-::::1
(~)
Fig. 8-180
1. Diode
• Insert a thin screwdriver between the I ck rib
side
of the diode and the connector h using
to remove it.
..
Page 1368 of 1928
8 -178 CHASSIS ELECTRICAL
ANTI-LOCK BRAKE SYSTEM (ABS)
GENERAL DESCRIPTION
The circuit consists of the starter switch, stoplight switch (vehicle w/o cruise control), brake switch (vehicle
with cruise control), hydraulic unit, electronic brake control module, wheel speed sensor, G sensor, ABS and
4WD indicator, 4WD switch and data link connector.
When the service brake is applied while in the running mode,
the EBCM (Electronic Brake Control Module)
judges
which wheel is about to lock by using the wheel rotation speed signals sent from the four ABS speed
sensors at the
front and rear wheels. And the brake fluid pressure applied to the four wheels is controlled by
a hydraulic unit to prevent the wheels from locking.
Based on the wheel rotation speed signals
input from the ABS sensor, the EBCM sends out signals to the
solenoid valve in the hydraulic unit
to increase, maintain or decrease the brake fluid pressure. The solenoid
valve uses this signal
to control the fluid pressure which is applied to the calipers of the disk brakes of the
front wheels. (The system also controls at the same time the fluid pressure applied to the rear wheels.)
• EBCM (Electronic brake control module)
The EBCM uses the signals sent from the speed sensor to control the operation of the hydraulic unit.
When any malfunction occurs in the ABS, the
EBCM activates the fail-safe fuction while turning on the
ABS warning light.
• Hydraulic unit
The hydraulic unit consists of the motor, plunger pump, solenoid valve, and fluid pressure control
valves. The exterior
of the unit has a relay box consisting of the motor relay and valve relay. Three
solenoid valves, the
two of which are provided at the front wheels and the one at the rear wheels, control
the fluid pressure
of these wheels.
• Speed sensor
The speed sensor consists of the sensor and the rotor. It sends the EBCM the AC voltage generated by
the rotation of the rotor as the vehicle speed signal. ~
• G-sensor
The G-sensor, installed inside the center console, sends out signals to the EBCM by detecting the
decelerating speed
of the vehicle.
• ABS warning light
The ABS warning light in the instrument panel, lights up when any malfunction occurs in the ABS. It also
lights up
with the starter key at the "ON" position, as a self-check.
Refer
to Section 5A4, "ANTI-LOCK BRAKE SYSTEM" for detail.
II
Page 1375 of 1928
CHASSIS ELECTRICAL 8-185
REAR WHEEL ANTI-LOCK BRAKE SYSTEM (RWAL)
GENERAL DESCRIPTION
The circuit consists of the starter switch, stoplight switch (vehicle w/o cruise control), brake switch (vehicle
w/cruise control). RWAL controller, RWAL speed sensor, RWAL valve, brake differential switch, 4WD switch,
parking brake
SW, indicator light (RWAL, 4WD, BRAKE), and test connector.
In this system, when the service brake is applied the RWAL controller judges the wheel rotation difference
signals which have been sent from the RWAL speed sensor at the rear axle differential. The anti-lock valves
control
the brake fluid pressure which is applied to the rear wheels to prevent the wheels from locking.
When starting the engine, the RWAL indicator in the instrument panel lights up at the same time as the brake
indicator
to inform the driver that the system is operating normally. (The light goes off after two seconds.)
Refer
to Section 5A3, "RWAL (REAR WHEEL ANTI-LOCK BRAKE SYSTEM)" for detail.