CHECK POWER SEAT FUNCTION
| *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.
Operate the power seat switches and check that each seat function operates properly:
Slide function
Reclining function
Lifter function*
Front vertical function*
Lumbar support adjustment function*
Cushion length function*
*: for Driver Seat
CHECK FRONT SEAT MOTOR (SLIDING, RECLINING, FRONT VERTICAL AND LIFTER FUNCTION)
Check the PTC operation inside the power seat motor.
Tech Tips
The resistance of the PTC thermistor increases when a switch of the front power seat switch (driver seat) or front power seat switch (front passenger seat) 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.
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.
Choose a power seat function. Operate a switch of the front power seat switch (driver seat) or front power seat switch (front passenger seat) and move the seat to the farthest possible position in one direction. Keep the seat in that position for approximately 60 seconds.
Operate the switch of the front power seat switch (driver seat) or front power seat switch (front passenger seat) 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).
After the current is shut off, release the switch of the front power seat switch (driver seat) or front power seat switch (front passenger seat) and wait for approximately 60 seconds.
Operate the same switch of the front power seat switch (driver seat) or front power seat switch (front passenger seat) and move the seat in the opposite direction. Check that the motor operates.
CHECK LUMBAR SUPPORT ADJUSTMENT MOTOR (for Driver Seat)
Check the PTC operation inside the lumbar support adjustment motor.
Note
The inspection should be performed with the seat installed in the vehicle.
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.
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).
After the current is shut off, release the power seat switch assembly and wait for approximately 60 seconds.
Operate the power seat switch assembly and move the lumbar support in the opposite direction. Check that the motor operates.
CHECK CUSHION LENGTH MOTOR (for Driver Seat)
Check the PTC operation inside the cushion length motor.
Note
The inspection should be performed with the seat installed in the vehicle.
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.
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).
After the current is shut off, release the seat variable cushion switch and wait for approximately 60 seconds.
Operate the seat variable cushion switch and move the seat cushion in the opposite direction. Check that the motor operates.