ISUZU KB P190 2007 Workshop Repair Manual

ELECTRICAL-BODY AND CHASSIS 8A-423

CIRCUIT DIAGRAM 4JA1T (L) Sheet 2/2

















RTW 78AXF010101

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8A-424 ELECTRICAL-BODY AND CHASSIS

CIRCUIT DIAGRAM C24SE (LHD)


RTW 780XF014001

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ELECTRICAL-BODY AND CHASSIS 8A-425

CIRCUIT DIAGRAM HFV6 (LHD)


RTW 78AXF015301

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8A-426 ELECTRICAL-BODY AND CHASSIS

CIRCUIT DIAGRAM 4JJ1-TC/4JK1-TC 4JH1-TC G.EXP


RTW 78AXF028101

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ELECTRICAL-BODY AND CHASSIS 8A-427

TROUBLESHOOTING
QUICK CHART FOR CHECK POINTS
Check Points



Trouble Mode Power
Window
& Door
Lock
Switch Power Window Switch
Power Window Motor

Driver’s
Side Passenger’s
Side RR-LH RR-
RH Driver’s
Side Passenger’s
Side RR-LH RR-
RH
All windows will not operate
Lock SW does not function Driver’s W indow:
W indow does not operate One-touch operation for
“DOW N” movement will not
operate


W indow operates in only
one direction

Front window on passenger
seat side:
W indow does not operate
W indow does not operate
when operating the driver’s
SW

W indow does not operate
when operating the
passenger’s SW

W indow does operate in
only one direction when
operating the driver’s SW

W indow does operate in
only one direction when
operating the passenger’s
seat side SW


Rear window on left (or right)
side:
W indow on left (or right)
side does not operate

W indow does not operate
when operating the driver’s
SW

W indow does operate in
only one direction when
operating the driver’s SW

W indow does operate in
only one direction when
operating the RR-LH (or
RH) side SW



Cable
Harness
Relay;
Power
Window


SBF9

C20

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8A-428 ELECTRICAL-BODY AND CHASSIS

1. All windows do not operate

Checkpoint Trouble Cause Countermeasure


Reinstall or replace the fuse
C20 (30A)

Poor fuse contact or blown

NG


Replace the circuit breaker
C20 (50A or 60A)

C20 (50A or 60A Fuse box)
function

Circuit breaker malfunction


Repair grounding points
contact

Grounding points C2


Poor grounding point contact

NG
NG
OK
OK
OK

Fuse C20 (30A, Fuse box)


Replace the power window
relay

Power window relay
malfunction

NG
Repair an open circuit or a
poor connection of the
connectors between 1
C108
and 2
B8
Voltage between the power
window relay harness side
connector terminal 2
B8
and the ground (Should be
battery v oltage present)

Open circuit or poor connector
contact

NG
OK

Power window relay function

OK
Repair an open circuit or a
poor connection of the
connectors between 1
B8
and 1
B56 and 6 D5

Open circuit or poor connector
contact

NG Voltage between 6 D5 and
the ground (Should be battery
v oltage present)

OK
Repair an open circuit or a
poor connection of the
connectors between 3
D5
and
C2 , or 3 B8 (12
C107 ) and C109

Open circuit or poor connector
contact

NG
Continued on the next page

Voltage between 3
D5 or 3
B8 and the ground



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ELECTRICAL-BODY AND CHASSIS 8A-429
Checkpoint Trouble Cause Countermeasure

Replace the driver seat side
power window & door lock
SW .
SW . malfunction
OK
NGDriver seat side power window
& door lock SW . function
Continued from the previous page



2. Lock switch does not function

Checkpoint Trouble Cause Countermeasure

Replace the driver seat side
power window & door lock
SW .
SW . malfunction
NGDriver seat side power window
& door lock SW . function



3. Window on the driver’s side does not operate

Checkpoint Trouble Cause Countermeasure

Replace the driv er seat side
power window & door lock
SW .
SW . malfunction

NG


Replace the driv er seat side
power window motor

Motor malfunction

NG
OK

Driv er seat side power
window & door lock SW .
function
OK

Repair open circuit or
connector contact

Open circuit or poor connector
contact

NG Continuity between 7 D5
and 1
D1 , or 8 D5 and 2
D1
1. Driv er seat side power window motor function
when connection the motor
connector 1
D1 to the
battery (+) terminal, and 2
D1 to the (-) terminal
(Should the motor rotate in the “UP” direction of the
window)
2. Driv er seat side power window motor function
when connecting the motor
connector 2
D1 to the
battery (+) terminal, and 1
D1 to the (-) terminal
(Should the motor rotate in the “DOW N” direction of
the window)


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8A-430 ELECTRICAL-BODY AND CHASSIS
REMOVAL AND INSTALLATION


This illustration is based on RHD RTW 780SH002601






DRIVER’S SIDE POWER WINDOW &
DOOR LOCK SWITCH
(2 DOOR MODELS)
Removal
1. Disconnect the battery ground cable.
2. Remove the screw in the pull cup with the tip of a screwdriver.
3. Remove the switch bezel by pushing the spring with the tip of a screwdriver.
4. Disconnect the connector.

ATTENTION:
When removing a switch bezel lift from the front in the
bezel.
It follows the front with the screwdriver.
The clip has broken when lifting from the rear in the bezel.



Installation
To install, follow the removal steps in the reverse order.



This illustration is based on RHD RTW 780SH002701






FRONT PASSENGER’S POWER WINDOW
SWITCH
(2 DOOR MODELS)
Removal
1. Disconnect the battery ground cable.
2. Removes the screw in the pull cup with the tip of a screwdriver.
3. Remove the switch bezel by pushing the spring with the tip of a screwdriver.
4. Disconnect the connector.

ATTENTION:
When removing a switch bezel lift from the front in the
bezel.
It follows the front with the screwdriver.
The clip has broken when lifting from the rear in the bezel.



Installation
To install, follow the removal steps in the reverse order.


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ELECTRICAL-BODY AND CHASSIS 8A-431

This illustration is based on RHD RTW 780SH002601
DRIVER’S SIDE POWER WINDOW &
DOOR LOCK SWITCH
(4 DOOR MODELS)
Removal
1. Disconnect the battery ground cable.
2. Removes the screw in pull cup with the tip of a screwdriver.
3. Remove the switch bezel by pushing the spring with the tip of a screwdriver.
4. Disconnect the connector.

ATTENTION:
When removing a switch bezel lift from the front in the
bezel.
It follows the front with the screwdriver.
The clip has broken when lifting from the rear in the bezel.


Installation
To install, follow the removal steps in the reverse order.


This illustration is based on RHD RTW 780SH002701


FRONT PASSENGER’S POWER WINDOW
SWITCH
(4 DOOR MODELS)
Removal
1. Disconnect the battery ground cable.
2. Removes the screw in pull cup with the tip of a screwdriver.
3. Remove the switch bezel by pushing the spring with the tip of a screwdriver.
4. Disconnect the connector.

ATTENTION:
When removing a switch bezel lift from the front in the
bezel.
It follows the front with the screwdriver.
The clip has broken when lifting from the rear in the bezel.



Installation
To install, follow the removal steps in the reverse order.


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8A-432 ELECTRICAL-BODY AND CHASSIS


RTW 780SH002801


REAR POWER WINDOW & DOOR LOCK
SWITCH-LH & RH
Removal
1. Disconnect the battery ground cable.
2. Remove the screw in the pull cup with the tip of a screwdriver.
3. Remove the switch bezel by pushing the spring with the tip of a screwdriver.
4. Disconnect the connector.

ATTENTION:
When removing a switch bezel lift from the front in the
bezel.
It follows the front with the screwdriver.
The clip has broken when lifting from the rear in the bezel.



Installation
To install, follow the removal steps in the reverse order.


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