EQUIPMENT
-
ETACS
OPERATION
LIGHT REMINDER ALARM FUNCTION
1. When the lighting switch is in the ON (TAIL
or HEAD) position, the tail light relay is in the
ON state, so the H signal from the tail light
is input to
AND2.
2.
When the ignition switch is in the OFF position,
the H signal of the ignition switch inverted by
NOT1
is input to
AND,.
3. As a result, when the driver’s door is opened
(door switch ON), the H signal of the door switch
inverted by
NOT2
is input to
ANDl.
Then
AND1
outputs H signal.
Fusible link
I
Tail light
relay
---_
ON
--cm
-
To tail
light
I
4. When the H signal output from
AND1
is input
to
AND2,
the signal output from
AND2
also
changes to H signal which operates the detector
circuit. Then the buzzer output causes the tran-
sistor to be ON, and the buzzer sounds continu-
ously to remind the driver that the lights (tail
lights or headlights) are ON.
NOTE
If the ignition key is left inserted with the ignition
switch in the OFF position, even if the conditions
for the light reminder function hold good, the buzzer
will sound intermittently, as the ignition key reminder
alarm function takes precedence.
Ignition switch (IGl)
-T-
Buzzer
h!l
r
NOT
5v
AND
3
1
JANDz
Ignition
switch
1
Buzzer
&zzer
sounds;
’
LJ
Driver’s
door
nwitch
(0pened)ON
-
-
I
(Closed) OFF
output
(Buzzer does
_]
Ll
UL
not sound) OFF
ETACS-ECU
_--_
El
ilFi
nt-F
Driver’s door
’
‘..
-.
switch
ON
n#
1
:
16X0881