fog light ISUZU TROOPER 1995 User Guide

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
•

8-58 CHASSIS ELECTRICAL
HEADLIGHT AND FOG LIGHT
GENERAL DESCRIPTION
The circuit consists of the headlight, fog light, lighting switch, dimmer·passing switch, fog light switc~, high­
beam indicator,
lighting relay, tail relay and fog light relay. When the lighting switch is turned on by s~tting it
at the headlight position, the lighting relay is activated to turn on the headlight. The optical axis oft he hE ad light
can be turned up or down by operating the dimmer switch while the head light is on.
The passing switch is independent
of the lighting switch, and the optical axis ofthe passing light can bE turned
up only while the switch lever is pulled up and held in this state.
When the fog
light switch is turned on while the headlight on at low-beam, the fog light relay is acti ated to
turn on the fog light.
OPERATION OF THE CIRCUIT
BATTERY(+)
FOG LIGHT RELAY .--*-----1--,
1.~---g I
~
Wr
FOG rG LIGHT! '!r_., SW ,
FOG LIGHT "ON" (Only when dimmer• passing SW is at LO position) BATTERY(+)
BATTERY(+)
h~
I.A ~I
LIGHTING RELAY "ON" (When lighting SW is
ICb
at
headlight position)
HEADLIGHT
~· LO-HI
I
DIMMER• LO HI PASSING SW
I
.-~ ~J I I
I I
§D ~_. o ¢:!]
~-~ bt I I I I
I I 0 r--~: _____ ------
o;[X]E 0 o----~
r----------------
OFF
LIGHTING sw (HEADLIGHT
POSITION)
NOTE:
Arrow marks "c::::::>" indicate the direction of current
Fig. 8-77
J •

::!! CQ 00 I ....... 00
(
HEADLIGHT
HIGH
BEAM
INDICATOR
LIGHT
(METER)
RELAY:
FOG
LIGHT
RELAY
& FUSE
BOX

(FL-1,
F-4,
F-5, F-8,
F-12)
RELAY:
TAIL
"' "
.
RELAY:
LIGHTING
'"~
'
HEADLIGHT
(RH) FOG
LIGHT
(RH)
(
COMBINATION
SW
"',,,
HEADLIGHT
(LH)
!,--
FOG
LIGHTSW
C-16
(
;g ~ r-0 0 ~ 0 2
(') :I: )II (I)
(I) c;; m r­m ~ ::a 0 )> r-eo I m

('")
co
ill
~ (!]
11t
-
I
z
88
::0
iii

en
,
('")
0
5:
~ [I].,.
30B
~~
m
+
c
n
~ciJ~I~~
=i
:I:
FRT
FOG
LIGHT -
LH
)>
r;:;-n
11:::-1
0.85
v
f'-1
..
c
(J)
0.56
.r---
!!!
(J)
,
-)>
Cii
0.56
,..,..,
~
,.....,
I
lo
.,,
G)
m
~
g~
.....
::0
r-
or-
"'
!:-<
.. _
m
., ..
;:
)>
FRT
FOG
LIGHT
SW
J:
:e
n
....
z
s
-1
ILLUMINA TlON
0.5
RIG
J~~~ll~
0.85
G/R
CONTROLLER(3)
o
• RELAY;TAIL(4)
5W
~
::0
(TO PAGE
8-791
(TO PAGE
8-78)
:;;
n
.,
0.5Y/G
0.5Y/G
do
)>
~ ;;;
r-
-
0.85R,IL
:;:
2
~
..
w
!>
OJ
-;::
ill
8~
HIGH
BEAM
INDICATOR
j1!
~~
(METER
I
z:: ~m ~~ "'"' ~:;;
~~
~I
I
~~w
l.
RELAY ;
LIGHTING
0.85Y
.. ;::
fG1
~
...
3R,IB
3W
!W
-
~-
00 I
~o-J...I
u:::J
u;
Lll;;;
I
11-1
1-11
~I
I
'!> -u::.J-
---
1.25W
..
-
-
IJ -<
HEAD
LIGHT
-RH
~
e
1.25
R1Y
~
~
w
-
I~
ANTI
THEfT
0.3V/R
!
O.!V/R
RELAY;
CORNERING(11
CONTROI.LER(181
(TO PAGE 8-1081
(TO PAGE 8-2721
.. w
Of;
I
., .. I
ill
O.SR,IB
I
s;: ~
0.56
~I
; I
I ! I
I
I
I~
~
;=
~
0.3G
ILLUMINATION
LIGHTS
(TO PAGE
8-781
)
)
)
•

8-62 CHASSIS ELECTRICAL
DIAGNOSIS
QUICK CHART FOR CHECK POINTS ~ )-; '. ·'·• 1. Heaplight 1:·
~
Fuse Lighting Lighting Dimmer• Headlight c ~ble Passing bulb F-4
F-5 relay sw ha ness
T
(15A) (15A) sw LH RH
1-1. Both Headlights inoperative 0 0 0 b (1) (3) (4) 2)
1-2. Headlight on
the left (or 0 0 0
0 b right) side inoperative (1) ((1)) (2) ((2)) 3)
1-3. Headlights in low-beam 0 b inoperative (1) 2)
1-4. Headlights in high-beam 0 b inoperative
(1) 2)
1-5. Headlight beam does not 0 p
change (1) 2)
1-6. Headlights remain on 0 0 b when the lighting switch is
( 1) (2) 3) turned off
1-7. Headlights come on with 0 ~ the lighting SW at the
parking light position (1)
NOTE: Figure in parenthesis"( )" indicates the order of inspection.
2. Fog light
~
Fuse
Fog light Fog light Fog light Cc ble F-8 bulb
(15A) relay switch LH RH har ness Tr
2-1. (While the headlight is on in low-beam) 0 0 0 c ~ Both
fog lights are inoperative (1) (2) (3) ( )
2-2. (While the headlight is
on in low-beam) 0 0 CD Fog light on the left (or right) side is
( 1) ( ( 1)) ( ) inoperative
NOTE: Figure
in parenthesis"()" indicates the order of inspection.
~ -'
..

•
•
•
•
•
CHASSIS ELECTRICAL 8-67
2-1. (WHILE THE HEADLIGHT IS ON IN LOW-BEAM}
BOTH FOG LIGHTS ARE INOPERATIVE
IS FUSE F-8 (15A) NORMAL? I
I
I I
YES I NO I
I j
IS THE FOG LIGHT RELAY NORMAL? I REPLACE THE FUSE I
I
I j
YES I NO I
I I
REMOVE THE FOG LIGHT SW REPLACE THE FOG LIGHT RELAY I
WITH THE SWITCH ON, IS THERE CONTINUITY BETWEEN
THE SW CONNECTOR TERMINALS sc:::E[J AND 4[}[]7
I
I I
YES I NO j
I J
IS THE BATTERY VOLTAGE APPLIED BETWEEN THE FOG REPAIR OR REPLACE THE FOG LIGHT sw I
LIGHT SW HARNESS SIDE CONNECTOR sill] AND THE GROUND?
I
I I
YES I NO I
I I
REPAIR A POOR CONNECTION AT THE CONNECTORS OR REPAIR A POOR CONNECTION AT THE CONNECTORS
AN OPEN CIRCUIT BETWEEN 4[}[]AND 16 [[ill OR AN OPEN CIRCUIT BETWEEN FUSE F-4 (15AI
AND 31 x-23 loR 1 Wi] AND s DD

8-68 CHASSIS ELECTRICAL
2-2. (WHILE THE HEADLIGHT IS ON IN LOW-BEAM) FOG
LIGHT
ON THE LEFT (OR RIGHT) SIDE IS INOPERATIVE
• IS THE FOG LIGHT BULB NORMAL?
I
I
YES I
I
REPAIR A POOR CONNECTION AT THE CONNECTORS OR A OPEN CIRCUIT BETWEEN 2 WU AND 6~(0R 2~AND 6[f}[]l
I
I NO I
I
l REPLACE THE BULB
NOTE: Connectors in parenthesis"()" indicates the check point of the fog light-RH.
I
•

CHASSIS ELECTRICAL 8-73
FOG LIGHT ASSEMBLY
~ I : I
Fig. 8-90 Garnish 1. Fog light assembly
FOG LIGHT BULB Fig. 8-92
B REMOVAL (Fig. 8-91) B REMOVAL (FIG. 8-92)
Preparation: Disconnect the battery ground cable. Preparation: Disconnect the battery ground cable.
Fig. 8-91
1. Fog light bulb
• Open the rear cover of the case.
• Remove the dust cover.
• Disconnect the bulb connector.
• Remove the clip.
EJINSTALLATION
To install, follow the removal steps in the reverse
order.
1. Fog light assembly
• Remove two nuts from the bracket.
• Remove the 2 clips from the fog light garnish.
• Disconnect the connector.
• Remove the garnish mounting screw.
B INSTALLATION
To install, follow the removal steps in the reverse
order.
\V CAUTION:
After installing the fog light, be sure to adjust the
fog light aim.
1~1 ... 1 Vertical angle adjustment
Turn the adjusting screw with a screwdriver to
adjust the aim of the fog light vertically. (Fig. 8-
93)
1r~~·~··.l J.li' . WlliJ
-'I IJIJJ
---
-------
Fig. 8-93

8-74 CHASSIS ELECTRICAL
FOG LIGHT SWITCH
~ INSPECTION
I tgj Check the continuity between the connector ter­
minals
while operating the switch. (Fig. 8-94)
Replace the switch when the result of inspection
is found abnormal.
ru~
IT
2 [II
161514131
c-
Fig. 8-94
B REMOVAL (FIG. 8-95)
TI ';
Preparation: Disconnect the battery ground cable.
Fig.
8-95
I I 1. Front console I assembly
1. Front console assembly
• Remove four screws.
• Remove the transmission shift leve knob
(M!r only).
• Remove the transfer shift lever knob.
• Disconnect the seat heater switch con ectors
(If so equipped).
• Disconnect the POWER & WINTER switch
connectors
(A/T only).
2.
Lower cluster assembly
• Remove three screws.
• Disconnect the cigar lighter connector .
• Remove the cigar lighter illuminatio bulb
socket.
• Disconnect the ashtray illuminatio bulb
connector.
3.
Instrument panel driver lower cover
• Remove the engine hood opener.
• Remove three screws and clip.
• Disconnect four fasteners.
4.
Instrument panel cluster assembly
• Remove five screws.
• Disconnect the four clips at top of instr ment
panel cluster assembly.
5. Fog
light switch
• To remove the switch, pushing the loc from
the back side of the cluster assembly.
B INSTALLATION
To install, follow the removal steps in the r verse
order, noting the
following point:
1. Push in the switch with your fingers un il the
switch is locked securely.
LIGHTING RELAY
~ INSPECTION
Check to see if there is any continuity be ween
the relay terminals. (Fig.
8-96)
Replace the relay when the result of in spec ion is
found abnormal.
CD-3 · · · · • · · · No continuit
(When the battery voltage is applied
between
4 -s)
•

G) ••• J
Fig. 8-96
FOG LIGHT RELAY, TAIL RELAY
~ INSPECTION
Check to see if there is any continuity between
the relay terminals. (Fig. 8-97)
Replace the relay
when the result of inspection is
found abnormal.
®-@ · · · · · · · · No continuity
(When the battery voltage is applied
between
CD-@)
®-@ · · · · · · · · Continuity
NOTE:
For relay removal, refer to "Connector Handling"
under the "NOTES FOR WORKING ON ELECTRICAL
ITEMS"
in this section.
Fig. 8-97
CHASSIS ELECTRICAL 8-75