Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1558
8-332 ELECTRICAL-BODY AND CHASSIS
CIRCUIT DIAGRAM (RHD)
ELECTRICAL-BODY AND CHASSIS 8-333
TROUBLE SHOOTING
Rear defogger inoperative
Checkpoint
Trouble Cause
Countermeasure
Reinstall or replace the fuse
No. CB-7 (15A) (RHD: fuse
No. CB-5 (15A))
Poor fuse contact or blown
NG
Reinstall or replace the fuse
No. CB-13 (15A)
Fuse No. CB-13 (15A, Fuse
box)
Poor fuse contact or blown
Replace the rear defogger
switch
Rear defogger switch function
Switch malfunction
NG
NG
OK
OK
OK
LHD:
Fuse No. CB-7 (15A, Fuse
box)
RHD:
Fuse No. CB-5 (15A, Fuse
box)
Replace the rear defogger
relay
Relay malfunction
NG
Continued on the next page
Rear defogger relay function
Repair grounding point
(
B-28
) contact
Grounding point (
B-28
)
Poor grounding point contact
NG
OK
Repair open circuit or poor
connector contact between
fuse No. CB-7 (15A) (RHD:
fuse No. CB-5 (15A)) and 2
B-7
, fuse No. CB-13 (15A)
and 5
B-7
, 1
B-7
and 1
L-4
, 4
B-7
and 4
B-15
or
5
B-15
and
B-28
Voltage between 1
L-4
-
ground when the starter switch
and the rear defogger switch
are at on position (should be
battery voltage present)
Open circuit or poor connector
contact
NG
OK
8-334 ELECTRICAL-BODY AND CHASSIS
Checkpoint
Trouble Cause
Countermeasure
OK
Repair open circuit or
connector contact between 1
L-7
and
B-28
Open circuit or poor connector
contact
NG
Continued from the previous page
Continuity between 1
L-7
and
B-28
Repair heat wire
Continuity between rear
defogger terminals
Broken heat wire of rear
defogger
NG
OK
ELECTRICAL-BODY AND CHASSIS 8-335
REMOVAL AND INSTALLATION
REAR DEFOGGER SWITCH (Except
South Africa, Chile)
Removal
1.Instrument Panel Cluster Assembly
• Refer to Section 10 “BODY” for instrument panel cluster
assembly removal steps.
2.Rear Defogger Switch
• Disconnect the switch connector.
• To remove the switch, push the lock from the back side
of the cluster assembly.
Installation
Follow the removal procedure in the reverse order to install the
rear defogger switch.
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