Lexus IS250 IS220d GSE20 ALE20 - SEAT
POWER SEAT MOTOR ASSEMBLY - ON-VEHICLE INSPECTION
| 1. INSPECT POWER SEAT MOTOR ASSEMBLY |
Check the PTC operation inside the power seat motor.
- HINT:
- The PTC thermistor's resistance increases when the power seat switch is held down even after the power seat has been moved to the maximum in one direction. After the resistance increases, current is shut off to prevent a short circuit.
- NOTICE:
- Perform the 4 steps below for the full range of motion for each power seat function.
Choose a power seat function. Operate the power seat switch and move the seat to the maximum in one direction. Keep the seat in that position for approximately 60 seconds.
Operate the power seat switch 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 the electrical current is automatically cut. Check if electrical current has been shut off by making sure the sound of the motor has stopped.
- Standard amount of time:
- 4 to 90 seconds
After the current has stopped, release the power seat switch and wait for approximately 60 seconds.
Operate the same power seat switch and move the seat in the opposite direction. Check that the motor operates.
LEXUS IS250, IS220d / GSE20 ALE20