Isuzu N-Series. Service manual — part 1031
CAB AND CHASSIS ELECTRICAL 8-229
Door Lock Switch (Driver Seat Side)
The door lock switch on the driver’s door is connected
with the door lock cylinder and the inside lock knob with
a rod. The switch sends lock/unlock signals to the door
lock controller.
Inspection
Check to see if there is any continuity between the con-
nector terminals of the door lock switch.
Replace the switch when the result of inspection is
found abnormal.
Removal and Installation
Refer to Section 2 for “DOOR LOCK ASSEMBLY”.
Door Lock Actuator
Receiving forward or reverse current from the door lock
controller, the door lock actuator locks or unlocks the
door with the rod connected to the door lock mecha-
nism.
Inspection of The Door Lock Actuator
Apply the battery voltage to the connector terminals of
the door lock actuator to check the operation.
When the door lock actuator is checked on the vehicle
and there is no continuity, and when the door lock actu-
ator itself is checked and no trouble is found, check the
circuit between the door lock actuator and the door lock
controller for any failure.
N8A0223E
1
2
3
Lock
Unlock
Terminal
No.
Operation
Switch side
1
2
3
D-4
N8A0224E
N8A0225E
8-230 CAB AND CHASSIS ELECTRICAL
Removal and Installation
Refer to Section 2 for “DOOR LOCK ASSEMBLY”.
Door lock ASM
Actuator
D-8
D-9
D-10
Actuator side
Actuator side
RR-LH
RR-RH
D-8
D-9
D-10
1
2
1
2
1
2
Lock
Unlock
FRT
Passenger
Door
Connector
No.
Terminal
No.
Operation
N8A0226E
CAB AND CHASSIS ELECTRICAL 8-231
Power Window
General Description
The circuit consists of the starter switch, power window switch for each of the windows and power window motor.
When the starter switch is turned on, the battery voltage is applied to each of the power window switches through the
circuit breaker and the power window relay on the circuit.
By operating the switches of each window to select “UP” or “DOWN”, the revolving direction of the power window
motor changes to open or close the window.
The driver’s power window switch has a built-in one-touch operating circuit which allows to automatically open the
window by operating the switch to the AUTO position.
When the driver’s power lock switch at the driver side is depressed, the power source to the passenger’s power win-
dow switches will be shut off and passenger’s side power window motor will not operate if the switch is operated.
Operation of Passenger Side Window
NOTE: Arrow marks "
" indicate the direction of current
N8A0227E
8-232 CAB AND CHASSIS ELECTRICAL
Parts Location
F-6, F-16
X-7
FL-1, FL-2, FL-26
FUSIBLE LINK
B-7
N8A0228E
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