Circuit ISUZU KB P190 2007 Workshop Repair Manual

ELECTRICAL-BODY AND CHASSIS 8A-485

CIRCUIT DIAGRAM C24SE (LHD)


RTW 780XF014501

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8A-486 ELECTRICAL-BODY AND CHASSIS
TROUBLE SHOOTING
Rear defogger inoperative
Checkpoint Trouble Cause Countermeasure


Reinstall or replace the fuse
No. C7 (10A) and 9
B56


Poor fuse contact or blown

NG


Reinstall or replace the fuse
C18 (20A)

C18 (20A, Fuse box)

Poor fuse contact or blown


Replace the rear defogger
switch

Rear defogger switch function

Switch malfunction

NG
NG
OK
OK
OK

Fuse No. C3 (10A, Fuse box)
and 9
B56


Replace the rear defogger
relay

Relay malfunction

NG
Continued on the next page

Rear defogger relay function


Repair grounding point contact

Grounding point
C2

Poor grounding point contact

NG
OK
Repair open circuit or poor
connector contact between
fuse No. C3 (10A) and 3

B7 , C18 (20A) and 1

B7 , 2 B7 (3 B55) and
1
L4 , 4 B7 (3 B54)
and 3
B46 or 1 B46 and

C2
Voltage between 1 L4 -
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



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ELECTRICAL-BODY AND CHASSIS 8A-487
Checkpoint Trouble Cause Countermeasure


OK
Repair open circuit or
connector contact between 1

L7 and C2


Open circuit or poor connector
contact

NG
Continued from the previous page
Continuity between 1
L7
and
C2


Repair heat wire

Continuity between rear
defogger terminals

Broken heat wire of rear
defogger

NG
OK



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ELECTRICAL-BODY AND CHASSIS 8A-493

CIRCUIT DIAGRAM C24SE


RTW 780XF014601

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8A-494 ELECTRICAL-BODY AND CHASSIS

CIRCUIT DIAGRAM HFV6

RTW 78AXF013301

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ELECTRICAL-BODY AND CHASSIS 8A-495

CIRCUIT DIAGRAM 4JJ1-TC / 4JK1-TC (RHD) SOUTH AFRICA

RTW 78AXF018601

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8A-496 ELECTRICAL-BODY AND CHASSIS

CIRCUIT DIAGRAM 4JJ1-TC / 4JK1-TC EXCEPT SOUTH AFRICA

RTW 78AXF028601

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ELECTRICAL-BODY AND CHASSIS 8A-497

CIRCUIT DIAGRAM 4JA1T(L), 4JH1-TC

RTW 78AXF009801

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ELECTRICAL-BODY AND CHASSIS 8A-505

CIRCUIT DIAGRAM C24SE


RTW 680XF014201


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8A-506 ELECTRICAL-BODY AND CHASSIS

CIRCUIT DIAGRAM HFV6 (RHD)

RTW 78AXF023801

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