The following operations can be performed simply by carrying the electronic key on your person, for example in your pocket. (The driver should always carry the electronic key.)

Operation signals
A buzzer sounds and the emergency flashers flash to indicate that the doors have been locked/unlocked. (Locked: once; unlocked: twice)
Security feature
If a door is not opened within approximately 60 seconds after the vehicle is unlocked, the security feature automatically locks the vehicle again.
Smart key system
Unlocking and locking the doorsUnmatched key code
Description
This dtc is output when a key code that has not been registered in the
transponder key ecu is inserted
into the ignition key cylinder.
Inspection procedure
Reregister key
Clear the dtc (see page ei-18).
Reregister the key code with the transponder key ecu
(see ...
Electronic control
Removal and installation of battery
terminal
Notice:
Certain systems need to be initialized after
disconnecting and reconnecting the cable from
the negative (-) battery terminal.
Before performing electronic work, disconnect
the cable from the negative (-) battery terminal to
...
Installation
Install knock sensor
Install the sensor with the nut.
Torque: 20 n*m (205 kgf*cm, 15 ft.*Lbf)
Notice:
Make sure that the knock sensor is in the
correct position.
Connect the sensor connector.
Install intake manifold insulator
install the intake manifold insulat ...