brake ISUZU TROOPER 1995 Workshop Manual

8-22 CHASSIS ELECTRICAL
FUSE BLOCK CIRCUIT
GENERATOR -------------------~s~w~------------~~s~w~--~~~~ r- / B L 1------CHARGE SIGNAL &W _/
FL-1 80A .-----, B 11.'1 MAIN
+ Lt--
l£h
~----/ IG~----------~O~.$~B/V~-----------,
3W REL~HT1NG 1J ---'"~L 3
RELA~PUMP 4 1...---. 12 2 B/0
1.25 B/0
SW
3RJ8
5W
~~~·~ F-1 0 0 F-2 10A
I F-315A
F-8
0 0 F-7 0 0 F-81SA
F-920A
9;nlaool
I
Oz SENSOR HEATER
HORN HAZARD
H/LAMP-LH
H/LAMP-RH
(FRT. FOG)
lABS) -I ABS
I ,--------__:<;;:R·.:.:W.::..Acc·L;;:-1 ____ ----Jv F-10 1SA 2 810
I
~ECM RELAY; ECM MAIN ¢~,...,..J>--+2'-'RIW~_::2~1-o.....-<:>-f-·4.:._ __ _. ~J~CTOR
L...-_.ECM
FL-t 40A ABS 4/WHEEL ONLY
"
.... ...
SW
5W
3 8IY
F-11 0 0 F-1215A
~------' FUSE BOX
CIB-2 30A ~.,.;
C-110A :
C-215A
C-31SA
C-410A
I
J
FUEL PUMP
TAIL
P/W, PIS. SIR
STARTER RELAY
(SEAT HEATER)
TURN BACK
ELEC.IGN.
e-s
15A 1 ""'-.0---t-----+----il FRT WIPER & WASHER
"""' -
I 3W/G
C-810A '---f-+----+.:3.:BIR::::..+---¢""''-£>---i-----f-----jl RR WIPER & WASHER
ABS HYORAULIC UNIT
STARTERSW
FL-2 _JJ OFF
~ ...
..:..AKEYSW 3 W/B ay ' o.N". 3UB
~~--~--~,~------~-0 ~~IG~2Y-----------~ o-: ST 3W/B 81 -.,IG1
FUSE BOX
I
I g1~ 1 J'-:::s:R:s-:1 =I RELAY; STARTER
STARTER I r-
L~---'~-j.t 3 B/V
I I 3UB
sw
C-710A
~';::--~--~-'---~~~HI~LA~M~P~W~IP~E~R~l~~ C-81SA ""'-'>--1---...__---i ENGINE
C-111SA I J~======~l IGN. COIL (G)
C-10 10A
C-1110A
k'-1:>----t----t
~==~I
METER GAUGE
""''-£>---f----------1 (AUDIO[ACC)) MIRROR
C-12 20A
::...1310A I
C-141SA -r"\'-1)----f----t
C-15 20A L,-.
CIGARETTE
(ANTITHEFT)
STOP A/T CONT.
(AUDIO[ B))
C-1810A """"-'-.0---f----------t_j CLOCK[B) ROOM
L---+------------------------iB lt~;_ ~=~~~:~:~::~~~: C-17 2SA I
G1820A
RR DEFOG
= sw (DOOR LOCK) RELAY; HEATER &A/C .:._ __________________ .:.:3~W'-'---------------------~2to~.....-4 3UR C-19 2SA ...... BLOWER
A/C : AIR CONDITIONING ECM : ENGINE CONTIIOL MODULE 0, :OXYGEN ABS
:ANTI-LOCK
BRAKE BYBTEM
RWAL: REAR WHEEL ANTI-LOCK BRB : SUPPLEMENTAL RESTRAINT SYSTEM
C-20 10A (AIR CON)
Fig. 8-45
•

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

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
•

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
•

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
•

GROUNDING POINT
REFERENCE TABLE
Connector No.
Cable harness
~
~
I B-1a1
Body harness
I B-191
I B-261
1 lc-16 I
2IC-16 I
3IC-16 I
4IC-16 I
Engine room
5IC-16 I
harness
6IC-16 I
7IC-16 I
aiC-16 1
Location
Body-RH
Body-LH
Body-center
Fender-LH
CHASSIS ElECTRICAL 8-29
Parts (Load)
Remind buzzer, Key remind switch (Starter
switch),
Sun roof control unit, Sun roof motor, Sun roof switch, Safety stop switch, Limit
switch
Door lock key switch (Front-RH), Cruise control
unit, Cigar lighter, Door mirror (RH), Front door
key switch (RH), Front door lock actuator (RH),
Fan switch, Starter relay, Front
door lock & power window switch (LH, RH), Front power window motor
Door lock key switch (Front-LH), Front power window motor (LH), Door mirror (LH), Front
door key switch (LH), Front door lock actuator
(LH), Rear wiper intermittent relay, Front door
lock & power window switch (LH)
Starter relay, Headlight
wiper switch,
Anti-theft controller,
Dimmer·passing switch, Fog light switch, Headlight, Lighting
relay, Fog
light relay, Illumination controller,
Illumination light, Rear defogger switch, Rear
defogger relay, Flasher unit,
Power window relay, Cruise control main relay, Kick-down
switch, Audio, Intermittent relay (front), Mode SW, Tail relay, Lighting SW, Cornering light
relay, Glove box switch, Digital clock,
Transmission control module, Heater & A/C
relay, Front
door key switch, Door mirror
control switch, Door mirror folding switch,
Door mirror defogger switch, Meter assembly
Seat heater, Seat heater switch, Fuel pump, Fuel pump relay, Seat belt switch, Remind
buzzer, Power and winter switch, Shift lock
controller, Rear
door lock actuator, Fuel tank
unit, Power seat SW, Front tilt motor & switch,
Rear tilt motor & switch, Slide motor, Recliner
motor & switch, Rear power window switch
(LH, RH), Rear power window motor (LH, RH),
Seat belt warning light
Headlight
wiper motor
Power steering pressure SW
4WD switch, 4WD indicator (meter), Brake fluid
SW, Oxygen sensor (M/T)
Electronic brake control
module
Front side marker light (LH, RH), Cornering
light, Cornering light switch (Combination
switch), Front turn signal light, Turn signal light switch (Combination switch), Parking light (LH, RH)
Fog light, Fog light relay
Hydraulic
unit
Oxygen sensor (AfT), ABS & Upshift relay,
Transmission SW

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
•

I
8 -92 CHASSIS ELECTRICAL I
STOPLIGHT AND REAR DEFOGGER I
GENERAL DESCRIPTION i .-_
The circuit consists of the stoplight, stoplight switch (vehicles w/o cruise control), brake switch (ve~icles w/
cruise control), rear defogger, rear defogger switch, rear defogger relay and trailer harness conn~ctor for
stoplights. i
With the brake pedal depressed, the stoplight switch or the brake switch is turned on to illumi~ate the
stoplight. The brake switch controls not only the operation of the stoplight but also the input of th~ cruise
cancel signals to the cruise control unit. 1
When the rear defogger switch is turned on with the starter switch on, the battery voltage is applie to the
rear
defogger through the rear defogger relay to operate the rear defogger.
The rear
defogger switch is provided with a timer. When the operation time of the timer elapses w ich has
been set in advance at manufacture,
the switch is automatically turned off. (The timer operating time is
normally about 30 minutes).
OPERATION OF THE REAR DEFOGGER CIRCUIT
STARTER SW ..------,
BATTERY(+)
~----------------0
llJ,
f-®-
RR DEFOGGER
~
SW
~
>'f RR DEFOGGER ~~
RELAY "ON" :4r 2 1-
(When RR ?
defogger SW HON"I
~ [b
RR DEFOGGER
NOTE: Arrow marks II => II indicate the direction of current
Fig. 8-115
~
•

"T1 tO. 00 I _. ... 0>
(
H-7 H-25
,,
B-11
BRAKE
SW
(W/CRUISE
CONTROL)
STOPLIGHT
SW
(W/0
CRUISE
CONTROL) BATTERY
B-38
-
'I ,....., , lUI,).,.
FUSE
sox~
!C-4,
C-14,
C-17l
/
H-44
(
,RELAY
AND
FUSE
BOX
IFL-1,
FL-21
/
~----._
HIGH
MOUNT
STOPLIGHT
~-----
~
G-,~,
~-~------

-~,

I
"~
'

RRDEFOGGER
STOPLIGHT
(LHI
{RR
COMBINATION
LIGHT)
STOPLIGHT
(RHI
(RR
COMBINATION
LIGHT)
(
;g ::xJ ~ r-0 (') ~ -0 2
(') ::t l> en
en en m r­m ~ ::Jl ~ Cl) I CD w

8-96 CHASSIS ELECTRICAL
DIAGNOSIS
QUICK CHART FOR CHECK POINTS
1. Stoplight
~
Fuse Stoplight SW Stoplight c~ ble
C-14 (15A) or brake SW bulb har
ness
Tr
1-1 Both stoplights inoperative 0 0 p
(1) (3) (~)
1-2 Stoplight on the left (or right) side inoperative 0 )
(1) (2)
1-3 High mount stoplight inoperative )
( 1)
NOTE: Figure in parenthesis"( )" indicates the order of inspection.
2. Rear defogger
~·
Fuse
Rear Rear ~able C-4
C-17 defogger defogger Rear
Tr
(10A) (25A) sw relay defogger
harness
2-1 Rear defogger does not operate 0 0 0 0 0
0 ( 1) (2) (4) (3) (5) (6)
2-2 Rear
defogger timer does not function 0 (1)
NOTE: Figure in parenthesis"( )" indicates the order of inspection.
•