Isuzu N-Series. Manual — part 1028
CAB AND CHASSIS ELECTRICAL 8-217
Inspection of The Buzzer Circuit
Disconnect the key remind buzzer connector, measure the continuity and voltage between the harness side connec-
tor terminals.
Termi-
Item
Connect-
Wire
nal
Connected to
to be
ing
Checking conditions
Standard
color
No.
checked
terminal
2
B
Ground
Continuity 2-Ground
-
Continuity
Starter key inserted
Approx. battery
voltage
1
P/L
Ground
Voltage
1-Ground
Starter key removed
0V
Front driver·s side door
"OPEN"
Continuity
3
GR/R
Ground
Continuity 3-Ground
Front driver·s side door
"CLOSE"
No Continuity
6
B/Y
Fuse F-12 (10A)
Voltage
6-Ground • Starter SW ON
Approx. battery
voltage
Harness side
1
2
3
4
5
6
B-83
N8A0209E
8-218 CAB AND CHASSIS ELECTRICAL
Key Cylinder Switch (Starter Switch)
Inspection
Check to see if there is any continuity between the connector terminals of the key cylinder switch.
Repair or replace the switch when the result of inspection is found abnormal.
B-68
Switch side
5
6
Key removed
LOCK
OFF
ACC
Key inserted
ON
START
Terminal No.
Starter key
position
N8A0210E
CAB AND CHASSIS ELECTRICAL 8-219
Power Door Lock
General Description
The circuit consists of the door lock switch, actuator for the front passenger door, rear doors and the door lock con-
troller.
The door lock controller is always provided with battery voltage. The key or the inside lock knob on the driver’s door
can activate the lock mechanism of all the doors.
When the driver’s door lock switch is turned on, current flows for about one second to the door lock actuator of each
door connected in parallel with the controller to activate the actuator to lock and unlock the doors.
Operation of Door Lock Controller
Notice:
Arrow marks indicate the direction of current.
When locking
the door.
Battery(+)
Relay;Door lock
Door lock sw.
(Lock position)
To actuator
(Actuator
operate
to lock side)
When locking
the door.
Battery(+)
Relay;Door lock
Door lock sw.
(Unlock position)
To actuator
(Actuator
operates to
unlock
position)
N8A0211E
8-220 CAB AND CHASSIS ELECTRICAL
Parts Location
F-4
B-7
N8A0212E
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