REAR POWER SEAT CONTROL SYSTEM (w/o Memory) OPERATION CHECK


  1. CHECK REAR POWER SEAT FUNCTION


    1. Check the basic functions.

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      1. Operate the rear power seat switch. Check that each seat function works:


        • Reclining function

        • Ottoman function

  2. CHECK REAR POWER SEAT MOTOR (for RH SIDE)


    1. Check the PTC operation inside the power seat motor (reclining motor and ottoman motor).

      Tech Tips

      The PTC thermistor resistance increases when the rear power seat switch RH is held down even after the power seat has been moved to the maximum in one direction. If the resistance increases beyond a specified level, current is cut to prevent a short circuit.

      Note


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


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


      1. Choose a power seat function. Operate the rear power seat switch RH and move the seat as much as possible in one direction. Keep the seat in that position for approximately 60 seconds.

      2. Operate the rear power seat switch RH again and continue to try to move the seat in the same direction as in the previous step. Measure the amount of time elapsed before current is automatically cut (the sound of the motor has stopped).

      3. After current has been cut, release the rear power seat switch RH and wait for approximately 60 seconds.

      4. Operate the same rear power seat switch RH and move the seat in the opposite direction. Check that the motor operates.

      5. CHECK REAR POWER SEAT MOTOR (for LH SIDE)


        1. Check the PTC operation inside the power seat motor (reclining motor and ottoman motor).

          Tech Tips

          The PTC thermistor resistance increases when the rear power seat switch LH is held down even after the power seat has been moved to the maximum in one direction. If the resistance increases beyond a specified level, current is cut to prevent a short circuit.

          Note


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


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


          1. Choose a power seat function. Operate the rear power seat switch LH and move the seat as much as possible in one direction. Keep the seat in that position for approximately 60 seconds.

          2. Operate the rear power seat switch LH again and continue to try to move the seat in the same direction as in the previous step. Measure the amount of time elapsed before current is automatically cut (the sound of the motor has stopped).

      6. After current has been cut, release the rear power seat switch LH and wait for approximately 60 seconds.

      7. Operate the same rear power seat switch LH and move the seat in the opposite direction. Check that the motor operates.