Front Power Seat Control System: Initialization

INITIALIZE FRONT POWER SEAT CONTROL SYSTEM
NOTE:
The position sensor initialization must be performed if one of the following occurs.
- Front power seat switch (seat ECU) is replaced.
- Front seat adjuster is replaced.
- Initialization cancel operation is performed.
- Power seat motor for the driver seat is operated when D/C CUT1 fuse or D MPX-B 1 fuse has an open circuit.
- Power seat motor for the front passenger seat is operated when D/C CUT2 fuse or D MPX-B fuse has an open circuit.
- Power seat motor inspection is performed.
1. Initialization cancel operation for driver seat
  1. Turn the engine switch on (IG).
  2. Press the power seat switch front vertical switch downward 3 times.*1
  3. Within 10 seconds of the above operation, begin the following operation: perform the rearward reclining operation and upward lifter operation simultaneously for 10 seconds or more (buzzer sounds 0.5 seconds). This will cancel the initialization.*2
    
    Fig 1: Checking Initialization Cancel Operation - Driver Seat
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Initialization operation for driver seat
  1. Perform the initialization cancel operation.
  2. Use the slide operation to move the front power seat to the rearmost lock positional
    HINT:
    - While performing the slide operation, the buzzer sounds.
    - After the slide operation initialization is complete, the headrest and cushion extender initialization occurs automatically. At this time, the headrest will move to the uppermost position, and the cushion extender will move rearward.
  3. Use the reclining operation to move the seatback to the foremost lock position (buzzer sounds for 0.5 seconds).*2
    
    Fig 2: Checking Initialization Operation - Driver Seat
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. Operate the power seat switch and check that the head restraint moves to be lowermost positional
  5. Operate the power seat switch and check that the seat slides forward and rearward and that the beeping sound is not emitted.*2
    HINT:
    
    After performing all of the procedures above, if the buzzer sounds while performing a manual operation, the initialization was not completed properly. Repeat all of the above procedures.
    
    Fig 3: Checking Seat Sliding Operation
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Initialization cancel operation for passenger seat
  1. Turn the engine switch on (IG).
  2. Press the power seat switch front vertical switch downward 3 times.*1
  3. Within 10 seconds of the above operation, begin the following operation: perform the rearward reclining operation and upward lifter operation simultaneously for 10 seconds or more (buzzer sounds 0.5 seconds). This will cancel the initialization.*2
    
    Fig 4: Checking Initialization Cancel Operation - Passenger Seat
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Initialization operation for passenger seat
  HINT:
  
  *: for Ottoman
  1. Perform the initialization cancel operation.
  2. Use the slide operation to move the front power seat to the rearmost lock positional
    HINT:
    - While performing the slide operation, the buzzer sounds.
    - After the slide operation initialization is complete, the headrest and lifter initialization occurs automatically. At this time, the headrest will move to the lowermost position, and the lifter will move either upward or downward.
  3. Use the reclining operation to move the seatback to the foremost lock position (buzzer sounds for 0.5 seconds).*2
    
    Fig 5: Checking Initialization Operation - Passenger Seat
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. Operate the power seat switch and check that the head restraint moves to be uppermost positional
  5. Operate the power seat switch and check that the seat slides forward and rearward and that the beeping sound is not emitted.*2
    HINT:
    - After performing all of the procedures above, if the buzzer sounds while performing a manual operation, perform the rear seat initialization*.
    - After performing all of the procedures above, if the buzzer sounds while performing a manual operation, the initialization was not completed properly. Repeat all of the above procedures.