Keyless Entry: Description and Operation

When the lock switch of the transmitter is pushed with all the doors and backdoor in unlocked condition, the door lock signal will be output (OV) from the keyless entry control unit terminal No.12 to turn on (lock side) the door lock relay to lock all the doors and backdoor.

When the transmitter unlock switch is pushed once with all the doors and backdoor in locked condition, the door unlock signal will be output (OV) from the keyless entry control unit terminal No.14 to turn on (unlock side) the door lock relay to unlock the door of the driver's side.

When the transmitter unlock switch is pushed once again with the same condition as above, the door unlock signal will be output (0V) from the keyless entry control unit terminal No.13 to turn on (unlock side) the door lock control unit to unlock all the doors and backdoor.

When the keyless entry system is operated to lock the door of the driver's side, the dome light flickering signal will be output (system voltage) twice from the keyless entry control unit terminal No. 11. And when the door of the driver's side is unlocked, the dome light illuminating signal will be output (OV) for three seconds from the keyless entry control unit terminal No. 11.

NOTE: Following are the functions that the keyless entry control system has in addition to the above.

Unless any of the door is opened or closed within 30 seconds after the door has been unlocked by the keyless entry system, all the doors and backdoor will be automatically locked. Further, when a code which is different from the code that the receiver memorizes is received 30 times consecutively in a minute, the system will not operate for 10 minutes.

The system will not operate with the ignition switch inserted and any of the doors and backdoor open.


Troubleshooting Hints

1. The indicator will not light when the transmitter switch of the transmitter is pushed.

Check or replace the battery.
Replace the transmitter.



2. Though the transmitter is transmitting waves (the indicator is lit) the system does not operate.


Check the way the code is registered.*
Check the keyless entry control unit terminal for voltage.
Check to see if the coaxial and ground cables of the antenna are connected.

3. Only either of the door or the backdoor can lock or unlock.


Check the door lock relay.
Check the door lock control unit.
Check the voltage of the keyless entry control unit terminal.

4. All the doors and the backdoor can be locked or unlocked by the transmitter, but the dome light does not flicker nor light. (The interlocking lighting of the dome light according to opening and closing of the doors, however, is normal.)

Check the voltage of the keyless entry control unit terminal.
Check the harness.

NOTE*: Carry it out when the transmitter or the keyless entry control unit has been replaced, or a defect in memory of the code has occurred.