4-16
BODY
-
Keyless
Entry System
Part name
Transmitter
Receiver
Function
Sends its secret code by the radio wave signals.
Switched over between the operation and memorizing modes by the code registration
switch.
In the operation mode, the receiver compares the signal received from the transmitter by
the built-in antenna with the code stored in the receiver and outputs the drive signal to the
ETACS-ECU and dome light only when the signal coincides with the code.
In the registration (programming) mode, the receiver stores the signals from the transmitter
in the EEPROM in the receiver as a new code.
Outline of the System
Operating
Section
Transmitter
r
-----
-------~
L-----------j
Lock switch
Indicator light
Battery
16X079E
I
Vehicle-Mounted
Section
Receiver
r---------
----------___
1
Antenna
T
I
I
Stored
code
Code registration
switch
I
l
Dome light
I
Control circuit
I
I
i
I
ETACS-
ECU
d
‘d
STRUCTURE AND OPERATION
TRANSMITTER
The transmitter is a key holder type independent of the master
ignition key. The transmission switch comprises two switches
which independently perform the lock and unlock functions.
When the transmission switch is operated, the secret code
unique to the transmitter is transmitted in radio form.
The transmitter has an indicator light which lights when the
transmission switch is placed in the ON state. The light makes
it possible to confirm switch operation and battery discharge.
The battery comprises two lithium cells (CR2016) and offers
a life expectancy of about two years at a rate of use of 10
times/day.