On-Vehicle Inspection
ON-VEHICLE INSPECTION
1. CHECK POWER SEAT FUNCTION
a. Check the basic functions.
1. Operate the power seat switches and check that the following seat functions work:
- Sliding
- Front vertical
- Lifter
- Reclining
- Lumbar support (Driver side seat only)
2. CHECK POWER SEAT MOTOR ASSEMBLY
(SLIDING, FRONT VERTICAL, REAR VERTICAL AND RECLINING FUNCTIONS)
a. Check 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.
NOTE: Perform steps (1) to (4) for the full range of motion for each power seat function.
1. 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.
2. Operate the power seat switch again and continue to try to move the seat in the same direction as in step (1). Measure the amount of time elapsed before the electrical current is automatically cut. Check if the electrical current has shut off by making sure the sound of the motor has stopped.
Standard: 4 to 90 seconds
3. After the current has stopped, release the power seat switch and wait for approximately 60 seconds.
4. Operate the same power seat switch and move the seat to the opposite extreme of the direction in step (1). Check that the motor operates.
5. Repeat steps (1) to (4) for the remaining power seat functions.
3. CHECK LUMBAR SUPPORT ADJUSTER ASSEMBLY LH
a. Inspect PTC operation inside the power seat motor.
NOTE: The inspection should be performed with the seat installed in the vehicle.
1. Move the lumbar support to either the foremost or rear most position by operating the lumbar support switch, and hold it there for approx. 60 seconds.
2. Try to move the lumbar support past the maximum position using the switch and measure the time until the electrical current is shut off (motor operation sound will stop).
Standard: 4 to 90 seconds
3. Turn off the lumbar support switch after the current is shut off, and keep that condition for approx. 60 seconds.
4. Operate the lumbar support switch to move the lumbar support to the opposite position and check that the motor operates.
4. w/ Memory:
CHECK MEMORY AND REACTIVATION FUNCTION
a. Turn the ignition switch ON and move the shift lever into the P position.
b. Move the seat into the foremost position and uppermost position using each seat switch.
c. Check that the buzzer sounds for 0.5 seconds and the seat position is recorded when the SW1 switch is pressed while the SET switch is held down.
d. Move the seat out of the foremost position and uppermost position using each seat switch.
e. Check that the buzzer sounds for 0.5 seconds and the seat position is recorded when the SW2 switch is pressed while the SET switch is held down.
f. Check that the buzzer sounds for 0.1 seconds and the seat automatically moves into the foremost position and uppermost position (set positions) when the SW1 switch is pressed.
g. Check that the buzzer sounds for 0.1 seconds and the seat automatically moves out of the foremost position and uppermost position (set positions) when the SW2 switch is pressed.
h. Check that the seat automatically moves into the set position when the SW1 or SW2 switch is pressed within 30 seconds after the ignition switch is turned OFF, the key is pulled out from the key cylinder and the driver side door is opened.
i. Move the seat into the maximum positions of the slide movement, and disconnect the negative terminal of the battery while the memory switch is pressed. Then leave the seat in that position for 3 minutes. The seat position memory will be erased.
j. Move the seat into all the maximum positions (front/rear and up/down) using each seat switch.
k. Check that the seat does not move (the seat position is not recorded) when the SW1 switch or the SW2 switch is pressed after the SW1 switch and SW2 switch are pressed together while the SET switch is held down.