EQUIPMENT
-
ETACS
7-27
CENTRAL DOOR LOCK TIMER FUNCTION
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id
(1) If the ignition key has already been removed
from the ignition switch (key reminder switch
ON), the L signal of the key reminder switch
is applied to NAND. Or if all doors have been
closed (door switches OFF), the H signal of
the door switch inverted to L by NOT is applied
to NAND.
(2) If the ignition key has been removed from the
ignition switch or all doors have been closed,
NAND outputs the H signal to be applied to
AND.
(3) At this time, pushing the inside lock knob of
the driver’s door forward (door lock actuator
LOCK) will apply the H signal to AND.
(4) As a result, AND outputs the H signal and is
input to the timer circuit through OR to operate
the timer circuit, turning on the transistor Trl
for 0.5 second to lock all doors.
Fusible link
I
NOTE
The door key cylinder and door lock actuator are
connected together by the rod through the door
latch. When, therefore, the driver’s door is locked
by means of the key, similar operation is accom-
plished.
(5) When the driver’s door is in the unlocked condi-
tion, the L signal of the door lock actuator is
applied to NOR.
(6) If, in this condition, the unlocking operation of
the driver’s door using the ignition switch is
done for the second time, the L signal of the
door lock key cylinder switch is applied to NOR.
(7) As a result, NOR outputs the H signal to NOR
and outputs it to the timer circuit through OR
to operate the timer circuit, turning on the transis-
tor Tr2 for 0.5 second to unlock all doors.
I
A
ETACS-ECU
Y
AN
NOT
OR
L-r
Timer circuit
1
Door lock
key cylinder
switch (LH)
;;gt
yIcK
Jd
/=I
0.5 sec.
Transistor
1
Tr2
Tr
1
Door lock
power relay
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