ISUZU TROOPER 1998 Service Repair Manual

8DÐ218 WIRING SYSTEM
2 Stoplight On The Left (Or Right) Side Inoperative
(Body Build-in Type Stoplight)
(Bumper Build-in Type Stoplight)
·WITH THE STOPLIGHT SW OR BRAKE SW DEPRESSED, IS THE
BATTERY VOLTAGE APPLIED BETWEEN 5 R-13 (OR 5 R-12 )
AND THE GROUND?
YES
REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 7 H-32 AND
5 R-13 (OR 5 R-12 )
NO
·IS THE STOPLIGHT BULB ON THE LEFT (OR RIGHT) SIDE NORMAL?
REPLACE THE BULB
YESNO
REPAIR A POOR CONNECTION AT THE CONNECTORS OR AN
OPEN CIRCUIT BETWEEN 1 R-13 (1 R-12 ) AND R-4
·WITH THE STOPLIGHT SW OR BRAKE SW DEPRESSED, IS THE
BATTERY VOLTAGE APPLIED BETWEEN 3 F-7 (OR 3 F-8 )
AND THE GROUND?
YES
REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 7 H-32 AND
3 F-7 (OR 3 F-8 )
NO
·IS THE STOPLIGHT BULB ON THE LEFT (OR RIGHT) SIDE NORMAL?
REPLACE THE BULB
YESNO
REPAIR A POOR CONNECTION AT THE CONNECTORS OR AN
OPEN CIRCUIT BETWEEN 2 F-7 (2 F-8 ) AND R-4

WIRING SYSTEM 8DÐ219
3 High Mounted Stoplight Inoperative
·
·
REPAIR A POOR CONNECTION AT THE CONNECTORS OR AN
OPEN CIRCUIT BETWEEN 2 G-9 AND R-3
ROMOVE THE HIGH MOUNTED STOPLIGHT CONNECTOR
IS THERE ANY CONTINUITY BETWEEN THE HIGH MOUNTED
STOPLIGHT CONNECTOR 1 G-9 AND 2 G-9 ?
YESNO
GROUND IT SECURELY
YESNO
REPAIR OR REPLACE THE HIGH MOUNTED
STOPLIGHT·
YESNO
REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 1 G-9 AND
1 H-37
·IS R-3 SECURELY GROUNDED?
IS THE BATTERY VOLTAGE APPLIED BETWEEN 1 G-9
AND THE GROUND WHEN THE BRAKE PEDAL IS
DEPRESSED?

8DÐ220 WIRING SYSTEM
Backup Light
General Description
The circuit consists of backup light switch (M/T),
mode switch (A/T) and backup light.
When shfit lever is set to ÒRÓ position, backup light
switch (M/T) or mode switch (A/T) is activated to
illuminate backup light.

WIRING SYSTEM 8DÐ221
Circuit Diagram (RHD)
3.0
B/Y STARTER SW
(IG1)
MODE
SW
(A/T)
HAZARD
WARNING
SWITCH (8)0.5
R/B
0.5
R/B 0.5
R/B
0.85
R/B
0.5
R/L0.75
R/L 0.75
R/LC-3 10A
TURN,BACKH-2517
H-717M-25
M-258
H-117
R-4 3
A
BACKUP
LIGHT SW
(6VD1 M/T)
BACKUP
LIGHT
-LHBACKUP
LIGHT
-RH
0.85
R/B
0.75
R/B
0.5
R/LH-11
1 6M-8M-91
0.85
R/LH-55
BACKUP
LIGHT SW
(4JG2)
0.5
R/B
0.85
R/B
0.5
R/LH-5E-43
1 6E-421
0.5
R/L
0.85
R/L
0.5
R/L
1.25
B1.25
B 0.5
R/LH-328H-716A
BODY-RRR-133R-13
1
R-123
1R-12 0.75
R/B
H-116H-117
D08RWC64

8DÐ222 WIRING SYSTEM
Circuit Diagram (RHD W/Bumper Built-in Type RR Combination Light)
3.0
B/Y STARTER SW
(IG1)
MODE
SW
(A/T)
HAZARD
WARNING
SWITCH (8)0.5
R/B
0.5
R/B 0.5
R/B
0.85
R/B
0.5
R/L0.75
R/L 0.75
R/LC-3 10A
TURN,BACKH-2517
H-717M-25
M-258
H-117
R-4 3
A
BACKUP
LIGHT SW
(6VE1 M/T)
BACKUP
LIGHT
-LHBACKUP
LIGHT
-RH
0.85
R/B
0.75
R/B
0.5
R/LH-11M-8
2 6M-81
0.5
R/LH-414
BACKUP
LIGHT SW
(4JX1)
0.5
R/B
0.5
R/B
0.5
R/LH-4E-15
2 13E-151
0.5
R/L
0.85
R/L
0.5
R/L
1.25
B1.25
B 0.5
R/LH-328H-716A
BODY-RRR-132R-13
1
R-122
1R-12 0.75
R/B
H-116H-117
D08RWC65

WIRING SYSTEM 8DÐ223
Parts Location (RHD)
Legend
(1) Backup Light-RH
(2) R-12
(3) Backup Light-LH
(4) R-13
(5) R-4
(6) H-7, H-25(7) H-32
(8) M-8 (6V*1 M/T), E-42, E-43 (4JG2)
(9) Mode Switch (A/T), M-25
(10) H-4, H-5
(11) Fuse Box
(12) Backup Light Switch (M/T)
1122
4
3
5
6
7
8
9
10
11
D08RW881

8DÐ224 WIRING SYSTEM
Circuit Diagram (LHD)
3.0
B/Y STARTER SW
(IG1)
MODE
SW
(A/T)
HAZARD
WARNING
SWITCH (8)0.5
R/B
0.5
R/B 0.5
R/B
0.85
R/B
0.5
R/L0.75
R/L 0.75
R/LC-3 10A
TURN,BACKH-2517
H-84M-25
M-258
H-117
R-4 3
A
BACKUP
LIGHT SW
(6VD1 M/T)
BACKUP
LIGHT
-LHBACKUP
LIGHT
-RH
0.85
R/B
0.75
R/B
0.5
R/LH-11
1 6M-8M-91
0.85
R/LH-55
BACKUP
LIGHT SW
(4JG2)
0.5
R/B
0.85
R/B
0.5
R/LH-5E-43
1 6E-421
0.5
R/L
0.85
R/L
0.5
R/L
1.25
B1.25
B 0.5
R/LH-328H-812A
BODY-RRR-133R-13
1
R-123
1R-12 0.75
R/B
H-116H-117
D08RW942

WIRING SYSTEM 8DÐ225
Circuit Diagram (LHD W/Bumper Built-in Type RR Combination Light)
3.0
B/Y STARTER SW
(IG1)
MODE
SW
(A/T)
HAZARD
WARNING
SWITCH (8)0.5
R/B
0.5
R/B 0.5
R/B
0.85
R/B
0.5
R/L0.75
R/L 0.75
R/LC-3 10A
TURN,BACKH-2517
H-84M-25
M-258
H-117
R-4 3
A
BACKUP
LIGHT SW
(6VD1 M/T)
BACKUP
LIGHT
-LHBACKUP
LIGHT
-RH
0.85
R/B
0.75
R/B
0.5
R/LH-11
1 6M-8M-91
0.85
R/LH-55
BACKUP
LIGHT SW
(4JG2)
0.5
R/B
0.85
R/B
0.5
R/LH-5E-43
1 6E-421
0.5
R/L
0.85
R/L
0.85
R/L
1.25
B1.25
B 0.85
R/LH-328H-812A
BODY-RRR-132R-13
1
R-122
1R-12 0.75
R/B
H-116H-117
D08RW943

8DÐ226 WIRING SYSTEM
Parts Location (LHD)
Legend
(1) Backup Light-RH
(2) Backup Light-LH
(3) R-13
(4) R-4
(5) H-32
(6) H-8, H-25(7) Fuse Box
(8) Backup Light Switch (M/T)
(9) Mode Switch (A/T) M-25
(10) H-11
(11) H-5
(12) M-8, M-9, E-42, E-43
(13) R-12
11
1087653 2 131
12
9
4
D08RW371

WIRING SYSTEM 8DÐ227
Diagnosis
Quick Chart for Check Points
Check pointFuse
C-3
(10A)F-3
(15A)Backup
light
bulbHorn
SWHorn
relayCable
harness
1 Both backup lights inoperativeTrouble mode
2 Backup light on the left (or right)
side do not light up
3 Backup light remains on
Backup
light SW/
Mode SW