light ISUZU TROOPER 1998 Service Repair Manual

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

8DÐ176 WIRING SYSTEM
2-3 Taillight On The Left (Or Right) Side Inoperative
IS FUSE F-11 (10A) (OR F-12 (10A)) NORMAL?·
·YES
NO
IS THE TAILLIGHT BULB ON THE LEFT (OR RIGHT)
SIDE NORMAL?·
YES
NO
REPLACE THE BULB
REPLACE THE FUSE
WITH THE LIGHTING SWITCH AT THE CLEARANCE
LIGHT POSITION, IS THE BATTERY VOLTAGE APPLIED
BETWEEN 6 R-13 (OR 6 R-12 ) AND THE GROUND,
OR 4 F-7 (OR 4 F-8 ) AND THE GROUND?
YESNO
REPAIR A POOR CONNECTION AT
THE CONNECTORS OR AN OPEN
CIRCUIT BETWEEN 10 H-32 AND
6 R-13 (OR 9 H-32 AND 6 R-12 ),
OR 10 H-32 AND 4 F-7 (OR 9 H-32
AND 4 F-8 ) REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 1 R-13 (OR 1 R-12 )
AND R-4 , OR 2 F-7 (OR 2 F-8 ) AND R-4
2-4 Both Clearance Lights Inoperative
·IS 1 C-16 (2 C-16 : 4ZE1) GROUNDED SECURELY?
YES
REPAIR A POOR CONNECTION AT THE CONNECTORS OR
AN OPEN CIRCUIT BETWEEN 1 C-16 (2 C-16 : 4ZE1)
AND 1 C-22 (1 C-31 )
NO
GROUND IT SECURELY

WIRING SYSTEM 8DÐ177
2-5 Clearance Light On The Left (Or Right) Side Operative
·IS THE CLERANCE LIGHT BULB ON THE LEFT (OR
RIGHT) SIDE NORMAL?
YESNO
REPLACE THE BULB·IS THERE ANY CONTINUITY BETWEEN THE HARNESS
SIDE CONNECTOR
2 C-22 AND FUSE F-11 (10A)
2 C-31 AND FUSE F-12 (10A)
YESNO
REPAIR A POOR CONNECTION AT THE
CONNECTORS OR AN OPEN CIRCUIT IN
THE CIRCUITREPAIR A POOR CONNECTION AT THE CONNECTORS OR
AN OPEN CIRCUIT BETWEEN 1 C-22 (OR 1 C-31 )
AND 1 C-16 (OR 2 C-16 : 4ZE1)
2-6 License Plate Light Inoperative
(LHD-1)
·DOES THE BOTH TAILLIGHT LIGHT UP WHEN THE LIGHTING
SWITCH IS AT THE CLEARANCE LIGHT POSITION?
YESNO
GROUND R-4 SECURELY·IS THE LICENCE PLATE LIGHT BULB NORMAL?
YES NO
REPLACE THE BULB
REPLACE THE FUSE
·IS THERE ANY CONTINUITY BETWEEN THE HARNESS
SIDE CONNECTOR
1 G-8 AND 1 H-39 ?
YESNO
REPAIR A POOR CONNECTION AT THE
CONNECTORS OR AN OPEN CIRCUIT IN
THE CIRCUITREPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 2 G-8 AND
R-4
·IS FUSE F-12 (10A) NORMAL?
YESNO

8DÐ178 WIRING SYSTEM
(LHD-2)
DOES THE TAILLIGHT LIGHT UP WHEN THE LIGHTING
SWITCH IS AT THE CLEARANCE LIGHT POSITION?·
YES
NO
GROUND R-4 SECURELY
REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 2 F-9 (2 F-10 )
AND R-4
2-7 License Plate Light On The Left (Or Right) Side Inoperative
(LHD-2)
IS THE LICENSE PLATE LIGHT BULB ON THE LEFT
(OR RIGHT) SIDE NORMAL?·
·
·YES
NO
REPLACE THE BULBIS FUSE F-11 (10A) (F-12 (10A)) NORMAL?
YESNO
REPLACE THE FUSE
WITH THE LIGHTING SWITCH AT THE CLEARANCE
LIGHT POSITION, IS THE BATTERY VOLTAGE APPLIED
BETWEEN 1 F-9 (OR 1 F-10 ) AND THE GROUND?
YESNO
REPAIR A POOR CONNECTION AT
THE CONNECTORS OR AN OPEN
CIRCUIT BETWEEN 1 F-9 AND
FUSE F-11 (10A) (OR 1 F-10 AND
FUSE F-12 (10A)) REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 2 F-9 (OR 2 F-10 )
AND R-4

WIRING SYSTEM 8DÐ179
2-8 Both Taillights And Clearance Lights On The Left (Or Right) Side Inoperative
·IS FUSE F-11 (10A) OR F-12 (10A) NORMAL?
YES
REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN
FUSE F-11 (10A) AND 18 H-12
FUSE F-12 (10A) AND 11 H-12
NO
REPLACE THE FUSE

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.

WIRING SYSTEM 8DÐ181
Circuit Diagram (RHD)-1
5.0
W
0.85
R/BF-12 15A
TAIL,ILLUMI.
TAIL RELAY
BATT.(+)
0.3
G
0.3
G3X-9
1
X-9
0.85
G/R
0.85
G/R
0.85
G/R 0.85
R/B
4
X-92X-9
B-12H-15B-12
LIGHTING
SW
(COMBINATION
SW)
SHIFT
LEVER
(A/T)MIRROR
CONTROL
SWMIRROR
FOLD
SWMIRROR
DEFOGGER
SWPOWER/
WINTER
SW
0.5
B
1.25
B8 3
7
B-19
BODY-RH
4
H-15
FRT
COMBINATION
LIGHTTAIL
LIGHT9
H-32 1
H-411
2 0.85
G/R 0.85
G/R 0.85
G/R
B-33
B-33
2
3 0.85
G/R
B-55
B-55
3
2 0.85
G/R
B-56
B-56
6
2 0.85
G/R 0.85
G/R
0.3
R/G0.3
R/G0.3
R/G0.3
R/G0.85
G/R
0.3
R/G
B-57
B-57
5
2
B-30
B-30C
BA
D08RW657

8DÐ182 WIRING SYSTEM
Circuit Diagram (RHD)-2
AB
DE
VANITY
MIRROR
-LH1
H-2114
H-16
(W/SUN ROOF) 0.5
B0.5
B
0.5
B 0.5
G/R
0.5
G/R
0.5
G/R0.85
G/R
0.85
G/R
0.3
R/G0.3
R/G 0.85
G/R
0.3
R/G 0.85
G/R
0.3
R/G 0.85
G/R
0.3
R/G 0.85
G/R
4
H-214
H-21
CIGARE-
TTE
LIGHTER1
2
2.0
B2.0
B
B-2
BODY-LH
HAZARD
SW3
1
I-11
I-11
FOG
LIGHT
SW6
2
I-5
I-5
RR
DEFOGGER
SW6
2
I-17I-20
I-20 I-17
AUDIO11
3
I-15
I-15
1
L-4
2 L-4
VANITY
MIRROR
-RH1
L-6
2 L-6
D08RW656

WIRING SYSTEM 8DÐ185
Parts Location (RHD)
Legend
(1) Front Fog Light Switch (I-5)
(2) Head Light Wiper / Washer Switch (I-4)
(3) Illumination Controller
(4) B-12
(5) I-9
(6) Hazard Switch (I-11)
(7) L-6
(8) I-16
(9) I-17
(10) L-4
(11) I-24
(12) H-21(13) B-2
(14) H-32
(15) I-23
(16) I-20
(17) B-30
(18) B-33
(19) I-19
(20) B-55, B-56, B-57
(21) H-41
(22) I-16
(23) B-19
(24) Relay and Fuse Box (X-9)
(25) H-15, H-16, H-26
1
2
3
4
5678910
11
12
13
14
15
16
17
1819
20
21
22
23
24
25
D08RW651

8DÐ186 WIRING SYSTEM
Circuit Diagram (LHD)-1
8.0
B/R
5.0
W
3.0
WFL-1 80A
MAIN
TAIL RELAY
BATT.(+)
0.3
G
0.3
G3X-9
1
X-9
3.0
W
4
X-92X-9
B-12H-12B-12
LIGHTING
SW
(COMBINATION
SW)
0.5
B
1.25
B8 1
7
B-19
BODY-LH
2
H-15
FRT
COMBINATION
LIGHT-LHTAIL
LIGHT
-LH10
H-32 1
H-410.85
G/O 0.85
G/O 0.85
G/O3.0
G/Y
F-1110A
TAIL-LHF-12 10A
TAIL-RH
0.85
G/O
6
H-13
FRT
COMBINATION
LIGHT-RHTAIL
LIGHT
-RH10
H-32 13
H-420.85
G/R 0.85
G/R
0.85
G/R
0.85
G/R0.85
G/R
0.85
G/R
A
B
1
H-15
D08RW888-1