Front Power Seat Control System (With Memory): Initialization

1. The power seat ECU must be initialized under any of the following conditions. The initialization sets the absolute position of the power seat's sliding and reclining functions.

   HINT: 

   Controlling the power seat's sliding and reclining functions together prevents the power seat from interfering with the rear seat during the power seat's sliding or reclining operation.

   • The battery is disconnected.
   • The D/C cut fuse is replaced.
   • The power seat switch (power seat ECU) is replaced.
   • The power seat assy is removed from the vehicle.
   • Initialization is cancelled.
2. Initialize the sliding function and reclining function of the power seat ECU as follows.
   1. Reconnect the battery and use the sliding or reclining function with the power seat switch to move the power seat to the foremost position (lock position). A buzzer should sound for 0.1 seconds.
   2. Use another function (sliding or reclining), which was not used at step ( 1 ) to move the power seat to the foremost position (lock position). A buzzer should sound for 0.5 seconds.
   3. The power seat ECU's initialization should be completed.
   NOTE: If the initialization is not completed, the power seat's sliding and reclining functions cannot be controlled together. 
   If the initialization is not completed, a buzzer should sound continuously at 0.45 seconds intervals while the power seat is sliding or reclining backwards.
   If the initialization is not completed, the power seat ECU will not memorize any seat position.

HINT: 

When the power seat's sliding and reclining functions linked control does not work properly, the seat's operational area is restricted. In this case, cancel the initialization of the power seat ECU so that the sliding and reclining functions can be operated differently.

1. Operate the power seat switch to slide the seat to the foremost position or fully recline the seatback to the front. Continue to hold the switch for at least 10 seconds. Then, cancellation of power seat ECU's initialization is completed.

HINT: 

• In the case that the seat's operational area is still restricted after the cancellation, the motor is malfunctioning.
• In the case that the seat's operational area is not restricted any more after the cancellation, the seat adjuster assy (pulse sensor) is malfunctioning.
  NOTE: After the cancellation, slide the seat to the rear or recline the seatback to the rear. A buzzer sounds continuously in intervals of 0.45 seconds. If the initialization is performed again, a buzzer does not sound any more.