trailer ISUZU TROOPER 1995 User Guide

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
~
•

Jl
::!! co (X) I .....
..... ....,
l'l ~ .... J::
.. .. .. .. l'l ~ ~
28 28
STOP LIGHT •
LH
STOP
LIGHT·
RH
TRAILER HARNESS
CONNECTOR
(STOPLIGHT)
RWAL CONTROU.ER(B)
(TO PAGE 8-188)
·-----m:----1
E8CM(25)
(TO
PAGE
8-194)
0.85 G I y I CRUISE CONTROL
UNIT(12) ITO PAGE
8-174)
SHIFT LOCK
CONTROLLER 121
(TO
PAGE
8-202)
0
I
I
1.258
~~~~
r:u
0~~:~------
I
·-
38
1.25
8
0.5 8
0.501L
0.85
GIY :;: 0
I ' IO ... , .. '" ·-
0
•<
~
:
" <
STOPUGHTSW (W/0
CRUISE CONTROL) II
I
I II
8RAKESW
(WI
CRUISE CONTROL) ,, :»m or;;: Ill< o·· " " m ,
I
1-11
0.85GIW 3LIO
'
' •o :m :~ :~
0.5LIW
8
.
ill
-
.. m < .. mm ~ liJ
Ill <::::
-w
I b
[;Jm
I[;Jn ~ § .., :::
5W
"' ~
.. " ..,
II
0.5LIW
•
0.5LIW
11'."1
0.5LIW
I
0.5L/W
b •
Ill -
)
ILLUMINATION CONTROLLER(3) (TO PAGE 8-79)
0.3RIG
RELAY;TAIL(4)
(TO
PAGE 8-78)
)
+ .. .. ,
)
0 -:::0 0 c =i c i> G) :::0 )> s:
00 I CD ""' 0 :I: )> CJ)
CJ) (i) m r­m 0 -i :c 0 )> r-

-n 10' 00 I .... w 0>
(
RELAY:
CORNERING LIGHT
DIODE

RELAY;HORN
\
RELAY
& FUSE
BOX'·.,,
(FL-1, FL-2,
F-31
~.
"",
BATTERY
'
FRT
TURN
SIGNAL,
HAZARD.
WARNING LIGHT
(RH) /
CORNERING LIGHT
(RH) C-31 HORN (HIGH)
( TURN
SIGNAL,
HAZARED
WARNING
INDICATOR LIGHT
(METER)
(
COMBINATION
SW
HAZARD
WARN
IN~
LIGHT
SW

FRT TURN
SIGNAL,
HAZARD
WARNING
LIGHT
(LH)
CORNERING LIGHT
(LH)
LIGHTING
SW
TURN
SIGNAL LIGHT,
/~l/
~/
CORNERING LIGHT SW. RR
TURN
SIGNAL,
HAZARD
WARNING LIGHT (LHI
=·
BACKUP
B-53
LIGHT(LH) "R-7 TRAILER HARNESS
CONNECTOR
FLASHER
UNIT
FUSE
BOX (C-3)
BACKUP LIGHT SW, (MfTI
)g ~ (/) r-0 (") ~ 0
2
(") ::c )> en
en en m r­m (") -i :lJ (") )> r­QI) I ..a 0 .....

8 -108 CHASSIS ELECTRICAL
CIRCUIT DIAGRAM
+ o-___,f.=8C.::BI::..:R'-l
B
B
~~P-1ol~ BODY ENG. FRAME
RELAY;TAILI31
ITO PAGE 8-781
OFF
BOOY-LH II
FENOER-LH II
BOOY-RR II
"' ., 0
19 H-7
~ > ::: ::: 0
0
:z: :z: ;! 0:
"" r :z: " " :J :J " " z z ffi ii! w z z 0:
0: 0 0 " "
"' ~ "' ., 0
0.85 v
0.85Y/R
~
" :J
"' z !2 ., z 0: ::> 1-
1-
1£
"' "' 0 "'
.---"'0·:::;85::.:RIL=-----+ FUSE F-4 (TO PAGE 8-50)
.-----'2'-'B~iR,___-jH-20 If-------,
O.SB
"' ~ a II! ::: 0
TRAILER HARNESS CONNECTOR
(TURN SIGNAL LIGHT)
1.25B "' "' "' 0
Fig. 8-137
C-3 38/G 15A TURN, BACK 0.85 RIB
0.85 RIB
0.85 RIB
2G/O
5~;1 !=w' ~: ~~; g :e· ~~~
=
:~co ! ~ _ut:
~ I!! ~ z !5 i: 1 :z: "'' ~ ...,, 0' 5 "' "' IH-,10 I ... il! 0 "! 0 0.85 RIL ' '
"' "' 0 1 H-25
:z: ~
"' r "' ;t 0 :z:
" :J .._ ::> "" ~
"' "' ..
..

"T1 ce· 00 I N ~ ~
(
BRAKE
SW
(W/CRUISE
CONTROL)
STOPLIGHT
SW
(W/0
CRUISE CONTROL)
SHIFT
LEVER
" ""'
SHIFT
LOCK
CONTROLLER
""''
RELAY
& FUSE
BOX
(FL-1,
FL-2)

(
STARTERSW
BRAKE
PEDAL
STOP
LIGHT
(LH)
\R-7 "-TRAILER
HARNESS
CONNECTOR
(H-44)
(
;g ~ r-0 0 ~ 5 z
0 :J: ~ en u; m r­m ~ :a g r­eo I N 0 ....