On-Vehicle Inspection (Power Seat Operation)
WARNING: This page is about a different car, the 2002 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Inspection should be nod with the seat installed to the vehicle.
- Check power seat basic function. Check that each part can function properly (sliding, front vertical, lifter, reclining and lumbar support) by operating the power seat switch. See Fig 1.
- Check power seat motor assembly (sliding). Inspect the PTC operation inside the power seat motor:
- Move the seat to any of the maximum front, rear, upper or lower position by operating the power seat switch and keep the seat there for approximately 60 seconds.
- Operating the power seat switch to move the seat to the position furthermore, measure the time (standard: approximately 4-90 seconds) until the electrical current will be shut down (motor operating sound will stop), inspection of the current shut-down.
- Turn the power seat switch off after the inspection of current shut-down and keep that condition for approximately 60 seconds.
- Operating the power seat switch to move the seat to the opposite position, check that the motor will operate.
- Check the left hand lumbar support adjuster assembly. Inspect the PTC operation inside the power seat motor:
- Move the lumbar support to either the front or rear maximum position by operating the lumbar support switch and keep it there for approximately 60 seconds.
- Operating the lumbar support switch to move the lumbar support to the position furthermore, measure the time (standard: approximately 4-90 seconds) until electrical current will be shut down (motor operating sound will stop), inspection of the current shut-down.
- Turn the lumbar support switch off after the inspection of current shut-down and keep that condition for approximately 60 seconds.
- Operating the lumbar support switch to move the lumbar support to the opposite position, check that the motor will operate.