FRONT POWER SEAT CONTROL SYSTEM(w/ Memory) OPERATION CHECK


  1. CHECK POWER SEAT FUNCTION


    1. A01GF1RC01
      *a Slide Function
      *b Reclining Function
      *c Lifter Function
      *d Front Vertical Function
      *e Lumbar Support Adjustment Function
      *f Cushion Length Function

      Check the basic functions.


      1. Operate the power seat switches and check that the following seat functions operate properly:


        • Slide function

        • Reclining function

        • Lifter function

        • Front vertical function

        • Lumbar support adjustment function

        • Cushion length function

  2. CHECK POWER SEAT MOTOR (SLIDING, FRONT VERTICAL, LIFTER AND RECLINING FUNCTIONS)


    1. Check the PTC operation inside the power seat motor.

      Note


      • The inspection should be performed with the seat installed in the vehicle.

      • Perform the 4 steps below to check the full range of motion for each power seat function.

      Tech Tips

      The resistance of the PTC thermistor increases when a switch of the position control ECU and switch assembly is held down even after the seat has been moved to the farthest possible position in one direction. If the resistance increases beyond a specified level, the current is shut off to prevent a short circuit.


      1. Choose a power seat function. Operate a switch of the position control ECU and switch assembly and move the seat to the farthest possible position in one direction. Keep the seat in that position for approximately 60 seconds.

      2. Operate the switch of the position control ECU and switch assembly again and try to continue to move the seat in the same direction as in the previous step. Measure the time until the current is shut off (motor operation sound stops).

      3. After the current is shut off, release the switch of the position control ECU and switch assembly and wait for approximately 60 seconds.

      4. Operate the same switch of the position control ECU and switch assembly and move the seat in the opposite direction. Check that the motor operates.

      5. CHECK LUMBAR SUPPORT ADJUSTMENT MOTOR


        1. Check the PTC operation inside the lumbar support adjustment motor.

          Note

          The inspection should be performed with the seat installed in the vehicle.


          1. Operate the power seat switch assembly and move the lumbar support to either the foremost or rearmost position. Keep the seat in that position for approximately 60 seconds.

          2. Operate the power seat switch assembly again and try to continue to move the lumbar support in the same direction as in the previous step. Measure the time until the current is shut off (motor operation sound stops).

      6. After the current is shut off, release the power seat switch assembly and wait for approximately 60 seconds.

      7. Operate the power seat switch assembly and move the lumbar support in the opposite direction. Check that the motor operates.

      8. CHECK CUSHION LENGTH MOTOR


        1. Check the PTC operation inside the cushion length motor.

          Note

          The inspection should be performed with the seat installed in the vehicle.


          1. Operate the seat variable cushion switch and move the seat cushion to either the foremost or rearmost position. Keep the seat in that position for approximately 60 seconds.

          2. Operate the seat variable cushion switch again and try to continue to move the seat cushion in the same direction as in the previous step. Measure the time until the current is shut off (motor operation sound stops).

      9. After the current is shut off, release the seat variable cushion switch and wait for approximately 60 seconds.

      10. Operate the seat variable cushion switch and move the seat cushion in the opposite direction. Check that the motor operates.

      11. CHECK SEAT POSITION MEMORY AND RESTORING FUNCTION

        Tech Tips


        • The SET, M1 and M2 seat memory switches are shown in the illustration.

        • The seat position will not be stored if the SET switch and 2 of the seat memory switches are pressed simultaneously.

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

        • The seat will not return to the memorized position if 2 of the seat memory switches are pressed simultaneously.

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


        1. A01GEQCC01
      12. *A for LHD
        *B for RHD
        *a M1 Switch
        *b M2 Switch
        *c SET Switch

Turn the engine switch on (IG) and check that the P position indicator is on.

  • Move the seat to the foremost and uppermost positions using the position control ECU and switch assembly.

  • Check that the buzzer sounds for 0.5 seconds and the seat position is memorized when the M1 switch is pressed within 3 seconds of the SET switch being pressed or the M1 switch is pressed while the SET switch is being pressed.

  • Move the seat to the rearmost and lowermost positions using the position control ECU and switch assembly.

  • Check that the buzzer sounds for 0.5 seconds and the seat position is memorized when the M2 switch is pressed within 3 seconds of the SET switch being pressed or the M2 switch is pressed while the SET switch is being pressed.

  • Check that the buzzer sounds for 0.1 seconds and the seat automatically moves into the foremost and uppermost positions (memorized positions) when the M1 switch is pressed.

  • Check that the buzzer sounds for 0.1 seconds and the seat automatically moves into the rearmost and lowermost positions (memorized positions) when the M2 switch is pressed.

  • Turn the engine switch off and open the driver door. Check that the buzzer sounds for 0.1 seconds and the seat automatically moves to the memorized position by pressing the M1 or M2 switch within 180 seconds after the engine switch is turned off.

  • Turn the engine switch off and close the driver door. Check that the buzzer sounds for 0.1 seconds and the seat automatically moves to the memorized position by pressing the M1 or M2 switch within 60 seconds after the engine switch is turned off.

  • Operate the front vertical function of the position control ECU and switch assembly to tilt the seat down 3 times.

    Within 10 seconds after operating the front vertical function of the position control ECU and switch assembly, operate the lifter function of the position control ECU and switch assembly to tilt up and the reclining function of the position control ECU and switch assembly to recline the seat simultaneously. Hold both switches for 10 seconds.

    Tech Tips

    The buzzer sounds for 0.5 seconds when the memory is cleared.

  • CHECK MEMORY CALL FUNCTION


    1. Memory registration

      Note


      • Do not bring 2 or more electrical key transmitter sub-assemblies into the cabin.

      • Do not press and hold the door control switch on the power window regulator master switch assembly for 20 seconds or more.


      1. Register the seat position to a seat memory switch (driver door) (M1 or M2 switch) in advance.

      2. Sit on the driver seat carrying only the electrical key transmitter sub-assembly to be registered to the vehicle.

      3. With the engine switch on (IG) and the shift lever in P, restore the memorized position to be registered.

      4. With the engine switch on (IG), the shift lever in P, the driver door closed, and a seat memory switch (driver door) (M1 or M2 switch) being pressed and held, press and hold the door control switch on the power window regulator master switch assembly until the buzzer answer-back function operates.

        Tech Tips


        • The door control switch on the power window regulator master switch assembly can be pressed to either the lock or unlock side.

        • The buzzer sounds for 0.5 seconds when the registration is complete.

        • The buzzer sounds for 3 seconds when the registration fails.

    2. Automatic memory call function


      1. With the identification code of the electrical key transmitter sub-assembly registered and the entry unlock function operated or wireless door unlock operation performed, check that the buzzer sounds for 0.1 seconds and the seat automatically moves to the memorized position when the driver door is opened.

    3. Memory deletion

      Note


      • Do not bring 2 or more electrical key transmitter sub-assemblies into the cabin.

      • Do not press and hold the door control switch on the power window regulator master switch assembly for 20 seconds or more.


      1. Sit on the driver seat carrying only the electrical key transmitter sub-assembly to be deleted from the vehicle.

      2. With the engine switch on (IG), the shift lever in P, the driver door closed, and the SET seat memory switch (driver door) being pressed and held, press and hold the door control switch on the power window regulator master switch assembly until the answer-back by the buzzer is confirmed.

        Tech Tips


        • The door control switch on the power window regulator master switch assembly can be pressed to either the lock or unlock side.

        • The buzzer sounds for 0.1 seconds twice when the deletion is complete.

        • The buzzer sounds for 3 seconds when the registration fails.

  • MEMORY CALL EMERGENCY STOP FUNCTION


    1. While a memory call function is operating, check that performing one of the following will stop the memory call operation: 1) press the SET switch, M1 switch or M2 switch or 2) press the position control ECU and switch assembly.