1998 ISUZU TROOPER relay

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