FRONT POWER SEAT CONTROL SYSTEM (w/ Seat Position Memory System) - Wireless-linked Return Function does not Operate

DESCRIPTION

When a door is unlocked, the certification ECU (smart key ECU) sends a door unlock signal and key ID signal to the position control ECU and switch. When the position control ECU and switch receives the door unlock signal, it stores the key ID. When the driver door is opened, the memory call and memory command information of the stored key ID is sent to each driving position related control ECU. Each control ECU receives the memory commands and performs the memory call operation according to predetermined control timing values.

INSPECTION PROCEDURE

1.CHECK ENTRY UNLOCK FUNCTION AND WIRELESS UNLOCK FUNCTION

Check that the driver side door unlocks when holding the driver side door outside handle, or when pressing the transmitter unlock switch.

OK:
Driver side door unlocks normally.

NG

GO TO ENTRY AND START SYSTEM OR WIRELESS DOOR LOCK CONTROL SYSTEM

OK

2.CHECK POWER SEAT CONTROL FUNCTION

Manually operate the driver seat power seat switches, and check if the seat operates normally.

OK:
Seat operates normally through manual operation.

NG

GO TO PROBLEM SYMPTOMS TABLE ()

OK

3.CHECK SEAT MEMORY SWITCH FUNCTION (SEAT POSITION MEMORY FUNCTION)

Perform a memory operation properly. Check that the buzzer sounds to indicate the completion of the memory operation.

NOTICE:

The seat position will not be recorded if the seat memory SET switch and 2 or more of the seat memory switches (for example, seat memory switch 1 and seat memory switch 2) are pressed simultaneously.

If a memorizing operation has failed, release all switches. The seat memory function does not operate unless the switches are released.

OK:
Seat memory switch function operates normally.

NG

GO TO PROBLEM SYMPTOMS TABLE ()

OK

4.CHECK SEAT MEMORY SWITCH FUNCTION (SEAT RESTORING OPERATION)

Press the seat memory switch 1, seat memory switch 2 or seat memory switch 3 and check that the seat moves to a recorded position.

OK:
Seat moves to recorded position.

NG

GO TO PROBLEM SYMPTOMS TABLE ()

OK

5.CHECK MEMORY CALL FUNCTION (REGISTER RECOGNITION CODE)

While pressing the seat memory switch 1, seat memory switch 2 or seat memory switch 3, press the transmitter lock or unlock switch. Then check that the buzzer sounds normally.

OK:
Buzzer sounds normally.

NG

GO TO PROBLEM SYMPTOMS TABLE ()

OK

6.CHECK MEMORY CALL FUNCTION (SEAT MEMORY CALL)

With a recognition code stored in memory, open the driver door by performing an entry unlock operation or by pressing the transmitter unlock switch. Check that the driver side power seat moves to the memorized position.

OK:
Driver side power seat moves to the memorized position.

NG

REPLACE POSITION CONTROL ECU AND SWITCH ()

OK

END

SEAT

Land Cruiser URJ200 URJ202 GRJ200 VDJ200

FRONT POWER SEAT CONTROL SYSTEM w/ Seat Position Memory System