relay ISUZU TROOPER 1998 Service Repair Manual

8DÐ160 WIRING SYSTEM
3.0
W
0.85
R/BF-12 15A
TAIL,ILLUMI.
TAIL RELAY
BATT.(+)
0.3
G
0.3
G3X-9
1
X-9
0.5
B 0.85
G/R
0.85
G/R
0.85
G/O 0.85
G/R 0.85
G/R 0.85
R/B
4X-9CLEARANCE
2
X-9
10A
B-12H-15B-12
LIGHTING
SW
(COMBINATION
SW)
FRT
COMBINATION
LIGHT
-LH
0.5
B
1.25
B8 3
7
2
C-221H-41
4
H-15H-32
0.85
G/R 0.85
G/R
0.85
G/R
INTERIOR
ILLUMINATION
LIGHT
B-19
BODY-RH
FENDER-LH1
C-22
1C-16
0.5
BCLEARANCE
FRT
COMBINATION
LIGHT
-RH
2
C-31
FENDER-LH1
C-31
1C-169
H-32B
D08RW619
Circuit Diagram (RHD)-1

WIRING SYSTEM 8DÐ163
Parts Location (RHD)
Legend
(1) R-12
(2) H-44
(3) F-8
(4) F-7
(5) H-33
(6) R-13
(7) R-4
(8) F-9
(9) F-10(10) H-32
(11) C-16
(12) C-22
(13) C-31
(14) H-41
(15) Relay and Fuse Box (X-9)
(16) B-19
(17) H-15
(18) B-12
13 14151617181
234
5
6
7
8
9
10
11
12
D08RW620

8DÐ164 WIRING SYSTEM
8.0
B/R
5.0
W
3.0
WFL-1 80A
MAIN
TAIL RELAY
BATT.(+)
0.3
G
0.3
G3X-91X-9
0.5
B 0.85
G/O 0.85
G/O3.0
W
3.0
G/Y4X-9CLEARANCE
2
X-9
B
B-12H-12B-12
LIGHTING
SW
(COMBINATION
SW)
FRT
COMBINATION
LIGHT
-LH
0.5
B
1.25
B8 1
7
2
C-221H-41
0.85
G/O 0.85
G/O 0.85
G/O
10
A2H-15H-32
0.85
G/R 0.85
G/R 0.85
G/R
9 6
H-13H-320.85
G/R
INTERIOR
ILLUMINATION
LIGHT
B-19
BODY-LH
FENDER-LH1
C-22
1C-16
0.5
B 0.85
G/R 0.85
G/RF-12 10A
TAIL-RH F-11 10A
TAIL-LHCLEARANCE
FRT
COMBINATION
LIGHT
-RH
2
C-3113H-42
FENDER-LH1
C-31
1C-16
D08RW798
Circuit Diagram (LHD)-1

WIRING SYSTEM 8DÐ167
Parts Location (LHD)
Legend
(1) H-39
(2) R-12
(3) G-8
(4) F-8
(5) F-10
(6) F-9
(7) F-7
(8) R-13
(9) H-33
(10) R-4(11) H-44
(12) B-12
(13) H-32
(14) B-19
(15) C-16
(16) C-22
(17) H-41, H-42
(18) C-31
(19) Relay and Fuse Box (X-9)
(20) H-12, H-13, H-15
16 17 18192012
3
4567
8
9
10
11
12
13
14
15
D08RW801

8DÐ168 WIRING SYSTEM
Diagnosis
Quick Chart for Check Point
1. RHD
2. LHD
Trouble
modeCheck point
RHD-1
RHD-2
RHD-2
Fuse
F-12
(15A)Lighting
SWTail
relayClearance
light bulbLicense
plate light
bulbCable harness
1-3 Taillight on the left (or
right) side inoperative
1-4 Both clearance
lights inoperative
1-5
Clearance light on the left
(or right) side inoperative
1-6 License
plate light
inoperative
1-7 License plate
light on the
left (or right)
side inoperative
1-1 All illumination lights
inoperative
1-2 Both Taillights inopera-
tive
Taillight
bulb
Trouble ModeCheck pointFuse
F-12
(10A)Lighting
SWTaillight
bulbClearance
light bulbLicense
plate light
bulbCable
harness
2-1All illumination lights
inoperative
2-2Both taillights
inoperative
2-3Taillight on the left (or
right) side inoperative
2-4Both clearance lights
inoperative
2-5Clearance light on the left
(or right) side inoperative
2-6LHD-1
LHD-2
LHD-2License plate
light
inoperative
2-7 License plate
light on the left
(or right) side
inoperative
Fuse
F-11
(10A) Tail
relay
2-8
Both taillight and
clearance light on the left
(or right) side inoperative

WIRING SYSTEM 8DÐ169
1-1 All Illuminations Lights Inoperative
1-2 Both Taillights Inoperative
IS THE BATTERY VOLTAGE APPLIED BETWEEN
HARNESS SIDE CONNECTOR 8 B-12 AND GROUND
WHEN LIGHTING SWITCH IS "ON" ?
REPAIRA POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 7 B-12 AND B-19
OR BETWEEN 4 X-9 AND 1 H-41 )IS FUSE F-12 (15A) NORMAL?
REPLACE THE FUSE
NO
REPAIR OR REPLACE THE SWITCH
NO
IS THE CONTINUITY IN THE LIGHTING SWITCH NORMAL?
YES
YES
REPAIR A POOR CONNECTION AT THE
CONNECTORS OR AN OPEN CIRCUIT
BETWEEN 8 B-12 AND FUSE F-12 (15A)
NOYES
· ··
NO
IS TAIL RELAY (X-9) NORMAL?
YES
·
REPAIR OR REPLACE THE RELAY
·DOES THE LICENSE PLATE LIGHT LIGHT UP WHEN THE
LIGHTING SWITCH IS AT THE CLEARANCE LIGHT
POSITION?
YESNO
GROUND R-4 SECURELYREPAIR A POOR CONNECTION AT THE CONNECTORS OR AN
OPEN CIRCUIT BETWEEN 4 H-15 AND 10 H-32

WIRING SYSTEM 8DÐ171
1-4 Both Clearance Lights Inoperative
IS FUSE F-12 (15A) NORMAL?·
·YES
NO
REPLACE THE FUSE
REPLACE THE RELAY
REMOVE THE CONNECTOR OF THE LIGHTING SWITCH
·
IS THERE ANY CONTINUITY BETWEEN 8 B-12 AND
7 B-12 WHEN THE SWITCH IS TURNED TO THE CLEARANCE
LIGHT OR HEADLIGHT POSITION?
YESNO
GROUND IT SECURELY
YESNO
YESNO
YESNO
REPAIR A POOR CONNECTION AT THE CONNECTORS OR
AN OPEN CIRCUIT BETWEEN 4 X-9 AND 1 H-41
·
IS THE BATTERY VOLTAGE APPLIED BETWEEN THE
HARNESS SIDE CONNECTOR 8 B-12 AND THE GROUND?REPAIR OR REPLACE THE LIGHTING
SWITCH
REPAIR A POOR CONNECTION AT
THE CONNECTORS OR AN OPEN
CIRCUIT BETWEEN 3 X-9 AND
8 B-12
·
IS THE TAIL RELAY NORMAL?
IS 1 C-16 GROUNDED SECURELY? ·

WIRING SYSTEM 8DÐ173
(RHD-2)
YESNO
REPAIR A POOR CONNECTION AT
THE CONNECTORS OR AN OPEN
CIRCUIT BETWEEN FUSE F-12 (15A)
AND 8 B-12 REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 4 X-9 AND 4 H-15 ,
OR 2 F-9 (2 F-10 ) AND R-4
IS FUSE F-12 (15A) NORMAL?·
IS THE TAIL RELAY NORMAL? ·
·YES
NO
REPLACE THE FUSE
IS R-4 GROUNDED SECURELY? ·YES
NO
YESNO
REPLACE THE RELAY
REMOVE THE CONNECTOR OF THE LIGHTING SWITCH
·
IS THERE ANY CONTINUITY BETWEEN 8 B-12 AND
7 B-12 WHEN THE SWITCH IS TURNED TO THE CLEARANCE
LIGHT OR HEADLIGHT POSITION?
YESNO
REPAIR OR REPLACE THE LIGHTING
SWITCH IS THE BATTERY VOLTAGE APPLIED BETWEEN
THE HARNESS SIDE CONNECTOR 8 B-12 AND
THE GROUND?
GROUND IT SECURELY

WIRING SYSTEM 8DÐ175
2-1 All Illumination Lights Inoperative
·IS TAIL RELAY NORMAL?
YESNO
REPLACE THE RELAY·IS THE CONTINUITY IN THE LIGHTING SWITCH NORMAL?
YESNO
REPAIR A POOR CONNECTION AT THE CONNECTORS OR AN
OPEN CIRCUIT BETWEEN 7 B-12 AND B-19REPAIR A POOR CONNECTION AT THE
CONNECTORS OR AN OPEN CIRCUIT IN THE
CIRCUIT BETWEEN FUSE F-12 AND 8 B-12
YESNO
REPAIR OR REPLACE THE SWITCH·IS B-19 GROUNDED SECURELY?
YESNO
GROUND IT SECURELY·IS THE BATTERY VOLTAGE APPLIED BETWEEN 8 B-12
AND GROUND WHEN LIGHTING SWITCH IS ON?
2-2 Both Taillights Inoperative
·DOES THE LICENCE PLATE LIGHT LIGHT UP WHEN THE
LIGHTING SWITCH IS AT THE CLEARANCE LIGHT
POSITION?
YES
REPAIR A POOR CONNECTION AT THE CONNECTORS OR
AN OPEN CIRCUIT BETWEEN 1 R-13 (1 R-12 )
AND R-4 , OR 2 F-7 (2 F-8 ) AND R-4NOGROUND R-4 SECURELY

8DÐ180 WIRING SYSTEM
Interior Illumination Light
General Description
The circuit consists of a lighting switch, tail relay,
illumination controller and illumination lights.
All these lights come on when the lighting switch is
turned on with the switch turned to either parking or
headlight position.
The brightness of illumination lights except the ones
for ashtray, glove box and vanity mirror, can be
adjusted by the illumination controller.