Isuzu N-Series. Manual — part 1134
8-248 CAB AND CHASSIS ELECTRICAL
All Windows Do Not Operate
N8A5273E
CAB AND CHASSIS ELECTRICAL 8-249
Lock Sw Does Not Function
Window on the Driver Side Does Not Operate
REPAIR OR REPLACE THE POWER WINDOW SW
ON THE DRIVER SEAT SIDE
N8A0231E
• IS THE POWER WINDOW SWITCH ON THE DRIVER
SEAT SIDE NORMAL?
• DISCONNECT THE CONNECTOR OF THE POWER
WINDOW MOTOR ON THE DRIVER SEAT SIDE
• WHEN CONNECTING THE MOTOR CONNECTOR
1 D-2 TO THE BATTERY (+) TERMINAL AND 2 D-2
TO THE (-) TERMINAL, DOES THE MOTOR ROTATE IN
THE "UP" DIRECTION OF THE WINDOW (OR WHEN
CONNECTING 2 D-2 TO THE (+) TERMINAL AND
1 D-2 TO THE (-) TERMINAL, DOES THE MOTOR
ROTATE IN THE "DOWN" DIRECTION OF THE
WINDOW)?
YES
NO
REPLACE THE POWER WINDOW SWITCH
ON THE DRIVER SEAT SIDE
REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN HARNESS SIDE
CONNECTOR TERMINALS 1 D-3 AND POWER
WINDOW MOTOR 1 D-2 OR 2 D-3 AND 2 D-2
YES
NO
REPAIR OR REPLACE THE POWER WINDOW
MOTOR
N8A0232E
8-250 CAB AND CHASSIS ELECTRICAL
Window on the Front Passenger Side Does Not Operate
• IS THE FRONT PASSENGER SIDE POWER WINDOW
SW NORMAL?
• IS THE DRIVER´S POWER WINDOW SW NORMAL?
YES
NO
REPAIR OR REPLACE THE SW
• REMOVE THE CONNECTOR OF THE FRONT
PASSENGER SIDE POWER WINDOW MOTOR
• WHEN CONNECTING THE MOTOR CONNECTOR
1 D-6 TO THE BATTERY (+) TERMINAL AND 2 D-6
TO THE (-) TERMINAL, DOES THE MOTOR ROTATE IN
THE "UP" DIRECTION OF THE WINDOW? (OR WHEN
CONNECTING 2 D-6 TO THE (+) TERMINAL AND
1 D-6 TO THE (-) TERMINAL, DOES THE MOTOR
ROTATE IN THE "DOWN" DIRECTION OF THE
WINDOW?)
YES
NO
REPAIR OR REPLACE THE SW
• WITH THE SWITCH AT THE NEUTRAL POSITION, IS
THERE ANY CONTINUITY BETWEEN THE HARNESS
SIDE CONNECTORS 1 D-6 AND 2 D-6 ?
YES
NO
REPAIR OR REPLACE THE POWER WINDOW
MOTOR
REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 5 D-3 AND 2 D-7
(OR 4 D-3 AND 4 D-7 )
YES
NO
REPAIR A POOR CONNECTION AT THE
CONNECTORS OR AN OPEN CIRCUIT BETWEEN
THE PASSENGER SIDE POWER WINDOW SW
AND THE MOTOR CONNECTOR
N8A0233E
CAB AND CHASSIS ELECTRICAL 8-251
Starter Switch
Refer to “START AND CHARGING” in this section.
Power Window Switch-driver Side
Circuit Inspection
Disconnect the switch connectors to check the voltage and the continuity between the harness side connector termi-
nals.
Termi-
Item
Connect-
Wire
nal
Connected to
to be
ing
Checking conditions
Standard
color
No.
checked
terminal
1
L/W
2
L
Driver seat side motor
1-2
4
G/Y
4-5
-
Continuity
5
R/Y
5-4
6
L/B
Power window relay
Voltage
6-Ground
Starter SW "ON"
Battery voltage
8
B
Ground
Continuity
8-Ground
-
Continuity
(resistance)
Continuity
(resistance)
Passenger side power
window SW
Harness side
D-3
N8A0234E
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