Front Seat Frame With Adjuster: Inspection

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT FRONT SEAT ADJUSTER ASSEMBLY

Check the operation of the slide motor.

Check if the motor rotates smoothly when the battery is connected to the slide motor connector terminals.

Fig 1: Checking Operation Of Slide Motor

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OPERATION OF SLIDE MOTOR

Measurement Condition	Operational Direction
Battery positive (+) -> 1 Battery negative (-) -> 2	Clockwise
Battery positive (+) -> 2 Battery negative (-) -> 1	Counterclockwise

If the result is not as specified, replace the seat adjuster.

Check the operation of the slide motor PTC thermistor.
HINT:

*: Passenger side
1. Connect the positive (+) lead from the battery to terminal 2 (1*), the positive (+) lead from the ammeter to terminal 1 (2*) and the negative (-) lead to the battery negative (-) terminal, and then move the seat cushion to the front position.
2. Continue to apply voltage and check that current changes to less than 1 A within 4 to 90 seconds.
3. Disconnect the leads from the terminals.
  
  Fig 2: Checking Operation Of Slide Motor PTC Thermistor (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Approximately 60 seconds later, connect the positive (+) lead from the battery to terminal 1 (2*) and the negative (-) lead to terminal 2 (1*), and then check that the seat cushion begins to move backwards.
  If the result is not as specified, replace the seat adjuster.
  
  Fig 3: Checking Operation Of Slide Motor PTC Thermistor (2 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check the operation of the front vertical motor.

Check if the motor rotates smoothly when the battery is connected to the slide motor connector terminals.

OPERATION OF FRONT VERTICAL MOTOR

Measurement Condition	Operational Direction
Battery positive (+) -> 1 Battery negative (-) -> 2	Clockwise
Battery positive (+) -> 2 Battery negative (-) -> 1	Counterclockwise

Fig 4: Checking Operation Of Front Vertical Motor

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, replace the seat adjuster.

Check the operation of the front vertical motor PTC thermistor.
HINT:

*: Passenger side
1. Connect the positive (+) lead from the battery to terminal 1 (2*), the positive (+) lead from the ammeter to terminal 2 (1*) and the negative (-) lead to the battery negative (-) terminal, and then move the seat cushion to the highest position.
2. Continue to apply voltage and check that current changes to less than 1 A within 4 to 90 seconds.
  
  Fig 5: Checking Operation Of Front Vertical Motor PTC Thermistor (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Disconnect the leads from the terminals.
4. Approximately 60 seconds later, connect the positive (+) lead from the battery to terminal 2 (1*) and the negative (-) lead to terminal 1 (2*) and check that the seat cushion begins to descend.
  If the result is not as specified, replace the seat adjuster.
  
  Fig 6: Checking Operation Of Front Vertical Motor PTC Thermistor (2 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check the operation of the lifter motor.

Check if the motor rotates smoothly when the battery is connected to the slide motor connector terminals.

OPERATION OF LIFTER MOTOR

Measurement Condition	Operational Direction
Battery positive (+) -> 1 Battery negative (-) -> 2	Clockwise
Battery positive (+) -> 2 Battery negative (-) -> 1	Counterclockwise

Fig 7: Checking Operation Of Lifter Motor

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, replace the seat adjuster.

Check the operation of the lifter motor PTC thermistor.
HINT:

*: Passenger side
1. Connect the positive (+) lead from the battery to terminal 1 (2*), the positive (+) lead from the ammeter to terminal 2 (1*) and the negative (-) lead to the battery negative (-) terminal, and then move the seat cushion to the highest position.
2. Continue to apply voltage and check that current changes to less than 1 A within 4 to 90 seconds.
  
  Fig 8: Checking Operation Of Lifter Motor PTC Thermistor (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Disconnect the leads from the terminals.
4. Approximately 60 seconds later, connect the positive (+) lead from the battery to terminal 2 (1*) and the negative (-) lead to terminal 1 (2*) and check that the seat cushion begins to descend.
  If the result is not as specified, replace the seat adjuster.
  
  Fig 9: Checking Operation Of Lifter Motor PTC Thermistor (2 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check the operation of the reclining motor.

Check if the motor rotates smoothly when the battery is connected to the slide motor connector terminals.

OK:

OPERATION OF RECLINING MOTOR

Measurement Condition	Operational Direction
Battery positive (+) -> 1 Battery negative (-) -> 2	Clockwise
Battery positive (+) -> 2 Battery negative (-) -> 1	Counterclockwise

If the result is not as specified, replace the seat adjuster.

Fig 10: Checking Operation Of Reclining Motor

Check the operation of the reclining motor PTC thermistor.
1. Connect the positive (+) lead from the battery to terminal 2, the positive (+) lead from the ammeter to terminal 1 and the negative (-) lead to the battery negative (-) terminal and then tilt the seatback to the most forward position.
2. Continue to apply voltage and check that current changes to less than 1 A within 4 to 90 seconds.
  
  Fig 11: Checking Operation Of Reclining Motor PTC Thermistor (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Disconnect the leads from terminals.
4. Approximately 60 seconds later, connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2 and check that the seatback begins to recline. If the result is not as specified, replace the seat adjuster.
  
  Fig 12: Checking Operation Of Reclining Motor PTC Thermistor (2 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002