Isuzu Trooper (1998-2002 year). Manual — part 924
8D–230
WIRING SYSTEM
1 Both Backup Lights Inoperative
•
IS FUSE C-3 (10A) NORMAL?
•
IS R-4 GROUNDED SECURELY?
GROUND IT SECURELY
YES
REPLACE THE FUSE
NO
YES
NO
•
•
YES
NO
•
•
SET THE TRANSMISSION GEAR TO THE REVERSE POSITION
WITH THE MODE SW (OR BACKUP LIGHT SW) CONNECTOR
DISCONNECTED, IS THERE CONTINUITY BETWEEN THE SW
SIDE CONNECTORS 5 C-43 AND 2 C-43 (1 E-42 AND
1 E-43 OR 1 M-8 AND 1 M-9 ) ?
REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN THE FUSE C–3 (10A)
AND MODE SW (BACKUP LIGHT SW)
NO
REPAIR OR REPLACE THE MODE SW
(BACKUP LIGHT SW)
REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 2 C-43 ( 1 E-43 OR
1 M-9 ) AND 8 H-32
TURN THE STARTER SW ON
IS THE BATTERY VOLTAGE APPLIED BETWEEN THE MODE
SW (OR BACKUP LIGHT SW) HARNESS SIDE CONNECTORS
8 M-25 (1 E-42 , 1 M-8 OR 1 E-15 ) AND THE GROUND?
WIRING SYSTEM
8D–231
2 Backup Light On The Left (Or Right) Side Inoperative
3 Backup Light Remains ON
REPAIR OR REPLACE THE MODE SW (BACKUP LIGHT SW)
•
IS THE BACKUP LIGHT BULB ON THE LEFT (OR RIGHT) SIDE
NORMAL?
YES
•
WITH THE STARTER SW AND THE BACKUP LIGHT SW AT ON
POSITION, IS THE BATTERY VOLTAGE APPLIED BETWEEN
3 R-13 (OR 3 R-12 ) AND THE GROUND OR 2 R-13
(OR 2 R-12 ) AND THE GROUND?
REPLACE THE BULB
NO
REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 8 H-32
AND 3 R-13 (OR 3 R-12 ) OR 8 H-32 AND 2 R-13
(OR 2 R-12 )
NO
YES
REPAIR A POOR CONNECTION AT THE CONNECTORS OR AN
OPEN CIRCUIT BETWEEN BACKUP LIGHT HARNESS SIDE
CONNECTOR 1 R-13 (OR 1 R-12 ) AND R-4
8D–232
WIRING SYSTEM
Horn
General Description
The circuit consists of horn (high note), horn (low
note), horn relay and horn switch.
When horn switch is pushed, (independent of
position of starter switch) horn relay is activated to
sound horns.
WIRING SYSTEM
8D–233
Circuit Diagram (RHD)
3
H-16
12
X-8
X-8
X-8
2
C-28
1
1
HORN RELA
Y
2.0
G/O
0.85
G/O
0.3
B/O
0.3
B/O
0.85
G/Y
0.85
G/Y
2.0
G/O
5.0
W
BA
TT
.(+)
F-3 15A
HORN, HAZARD
FL-1 80A
MAIN
HAZARD
W
ARNING SW
(2)
12
B-12
HORN SW
HORN
(LOW NOTE)
HORN
(HIGH NOTE)
H-15
16
C-27
1
D08RW660
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