fuse ISUZU TROOPER 1995 Owners Manual

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.
~ -'
..

8 -64 CHASSIS ELECTRICAL
1-2. HEADLIGHT ON THE LEFT (OR RIGHT) SIDE INOPERATIVE
• IS THE FUSE F-4 (15A) (OR F-5 15Al NORMAL?
I
I
YES I
I
• IS THE HEADLIGHT BULB ON THE LEFT (OR RIGHT)
SIDE NORMAL?
I
I
YES I
I
I
REPAIR A POOR CONNECTION AT THE CONNECTORS OR
AN OPEN CIRCUIT BETWEEN FUSE F-4 (15Al AND
3~(0R FUSE F-5 115Al AND 3WUI
I
I NO I
I
I REPLACE THE FUSE
I
I NO I
I
I REPLACE THE BULB
I
I
1-3. HEADLIGHTS IN LOW-BEAM INOPERATIVE
• REMOVE THE CONNECTOR DIMMER•PASSING SW (COMBINATION SW)
• WITH
THE SWITCH AT THE LOW-BEAM POSITION, IS THERE CONTINUITY BETWEEN THE SW CONNECTOR
TERMINALS
13[[I[jAND 16[[1[]
I
I
YES I
I
REPAIR A POOR CONNECTION AT THE CONNECTORS OR
AN OPEN CIRCUIT BETWEEN 13[[ll]AND 10~
I
I NO I
I
I REPAIR OR REPLACE THE DIMMER•PASSING S1tJ I

•
•
•
•
•
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

'"T1 (Q cp (
GLOVE BOX ILLUMINATION
LIGHT
ASHTRAY ILLUMINATION
LIGHT
RELAY
& FUSE BOX
(FL-1, F-12)

CIGAR LIGHTER
-----
-~----~
ILLUMINATION
LIGHT
'>
./
BATIERY
FRT
SIDE
MARKER LIGHT
(RH)
PARKING
LIGHT (RHl
(FRT
COMBINATION
LIGHT) H-41
/
I
X-9
....
/
RELAY:T/
I
POWER,
WINTER
SW.
ILLUMINATION LIGHT
I
(NT)
1
PARKING
LIGHT (LH)
(FRT
COMBINATION
LIGHT)
SHIFT
LEVER/
ILLUMINATION
LIGHTINTl
(
REAR
DEFOGGER
REAR
WIPER
&
SW
WASHERSW
ILLUMINATION CONTROLLER
(
HAZARDSW

HEADLIGHT WIPERSW
H-32
",,
FRT
SIDE
MARKER
LIGHT(LH)
(FRT
COMBINATION
LIGHT) TAILLIGHT
(LH)
(RR
COMBINATION
LIGHT)
l"
R-7
FOG
LIGHT
sw
-TRAILER
HARNESS
CONNECTOR
'· 'H-44 LIGHTING
SW
;g ;:Q ~ r-0 0 ~ 0 2
0 :::t )> en en c;; m r­m ~ :a 0 )> r­eo I .... ....

8 -82 CHASSIS ELECTRICAL
DIAGNOSIS
QUICK CHART FOR CHECK POINT
·~··
~
Fuse Front
side License ; Tail Lighting
Taillight
marker plate c ble '. F-12 e
Relay sw bulb he rness
e (15A) light bulb light bulb
1. Both Taillights inopera-0
0
0 0 tive (1) (2) (3) (4)
2. Taillight
on the left (or 0 0 right)
side inoperative
(1) (2)
3. Both front side marker 0 0
0 0 lights inoperative (1) (2) (3) (4)
4. Front
side marker 0 0 light on
the left (or right)
side inoperative (1) (2)
5. License plate light 0
0
inoperative (1) (2)
NOTE: Figure
in parenthesis "( )" indicates the order of inspection.
~
~
•

CHASSIS ELECTRICAL 8 -83
1. BOTH TAILLIGHTS INOPERATIVE
• IS FUSE F-12 (15Al NORMAL? I
I
I
I
YES I NO I
I I
• IS THE TAIL RELAY NORMAL? I REPLACE THE FUSE I
I
I
I
YES I NO I
I I
•
IS[&!] GROUNDED SECURELY? I REPLACE THE TAIL RELAY I
I
I
l
YES I NO I
I I
• REMOVE
THE CONNECTOR OF THE LIGHTING GROUND I R-41 SECURELY I SWITCH
• IS THERE ANY CONTINUITY BETWEEN 81 B-121
AND SIT[] WHEN THE SWITCH IS TURNED
TO PARKING OR HEADLIGHT POSITION?
l
I I
YES I NO I
I I
• IS
THE BATTERY VOLTAGE APPLIED BETWEEN THE REPAIR OR REPLACE THE I
HARNESS SIDE CONNECTOR Bl B-121 AND THE LIGHTING SWITCH
GROUND?
I
I I
YES
I NO I
I I
REPAIR
A POOR CONNECTION AT THE CONNECTORS REPAIR A POOR CONNECTION AT THE
OR AN OPEN CIRCUIT BETWEEN 41 X-91 AND 151 H-321. CONNECTORS OR AN OPEN CIRCUIT OR 1 [friJ ( 1 (K[]) AND[&!] BETWEEN FUSE 31 X-9IAND Bl B-121

CHASSIS ELECTRICAL 8-85
3. BOTH FRONT SIDE MARKER LIGHTS INOPERATIVE
• IS FUSE F-12 (15Al NORMAL? I
l
I I
YES I NO I
I I
• IS THE TAIL RELAY NORMAL? I REPLACE THE FUSE I
l
I I
YES I NO I
I I
• IS sl C-161 GROUNDED SECURELY? I REPLACE THE TAIL RELAY I
I
I
I
YES I NO I
I I
• REMOVE THE CONNECTOR OF THE LIGHTING
GROUND slc-16l SECURELY I SWITCH
• IS
THERE ANY CONTINUITY BETWEEN Bl B-121 AND 6CI[JWHEN THE SWITCH IS TURNED TO PARKING OR HEADLIGHT POSITION?
I
I I
YES I NO I
I I
• IS THE BATTERY VOLTAGE APPLIED BETWEEN THE REPAIR OR REPLACE THE I
HARNESS SIDE CONNECTOR Bl B-121 AND THE LIGHTING SWITCH
GROUND?
I
I
I
YES I NO 1
I I
REPAIR A POOR CONNECTION AT THE CONNECTORS REPAIR A POOR CONNECTION AT THE
OR AN OPEN CIRCUIT BETWEEN 41 X-91 AND 91 H-411, CONNECTORS OR AN OPEN CIRCUIT OR 1 IC-221 111 C-311 lAND siC-161 BETWEEN FUSE 31 X-91 AND al B-121

"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.
•

CHASSIS ELECTRICAL 8 -97
1-1 BOTH STOPLIGHTS INOPERATIVE
• IS FUSE C-14 (15A) NORMAL? I
l
l l
YES I NO l
I I
• IS [MJ SECURELY GROUNDED? I REPLACE THE FUSE l
I
I I
YES I NO I
I 1
• IS BATTERY VOLTAGE APPLIED TO 1 ~ (1 [[ill) GROUND IT SECURELY I OF THE STOPLIGHT SW (OR THE BRAKE SW)7
I
I I
YES I NO l
I I
• REMOVE THE STOPLIGHT SW (OR THE BRAKE SW). REPAIR A POOR CONNECTION AT CONNECTORS
• IS THERE ANY CONTINUITY BETWEEN 11 B-141 AND OR AN OPEN CIRCUIT BETWEEN THE FUSE C-14 (15Al
21 B-14I!OR 11 B-131 AND
4 ~ l OF THE SWITCH AND 1 I B-14 I (1 ~ ).
WHEN PUSH ROO IS OUT?
I
I I
YES I NO I
I T
• DOES THE PUSH ROD OF THE STOPLIGHT SW (OR THE REPLACE THE STOPLIGHT SW (OR BRAKE SW) . 1 BRAKE SW) OPERATE SMOOTHLY?
I
I I
YES I NO I
J -1
REPAIR A POOR CONNECTION OF CONNECTORS OR AN REPLACE THE STOPLIGHT SW (OR BRAKE SW). I OPEN CIRCUIT BETWEEN 21]}!] 141 B-131 lAND 10! H-321