Front Power Seat Control System: Inspection

w/Memory: INSPECT SEAT MEMORY SWITCH
1. Check the resistance between the terminals when each switch is operated.
  Standard:
  
  Fig 1: Standard Tester Connection Specification
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, replace the switch.
  
  Fig 2: Inspecting Seat Memory Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
w/o Memory: INSPECT FRONT POWER SEAT SWITCH LH
1. Check the resistance between the terminals when each switch is operated.
  Standard:
  
  Slide switch
  
  Fig 3: Standard Slide Switch Specification
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Front vertical switch
  
  Fig 4: Standard Front Vertical Switch Specification
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 5: Identifying Front Power Seat Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Lifter switch
  
  Fig 6: Lifter Switch Specification
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Reclining switch
  
  Fig 7: Reclining Switch Specification
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, replace the switch.
INSPECT FRONT POWER SEAT SWITCH RH
1. Check the resistance between the terminals when each switch is operated.
  Standard:
  
  Slide switch
  
  Fig 8: Standard Slide Switch Specification
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Reclining switch
  
  Fig 9: Standard Reclining Switch Specification
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, replace the switch.
  
  Fig 10: Inspecting Front Power Seat Switch RH
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT POWER SEAT SWITCH ASSY (LUMBAR SUPPORT)
1. Check the resistance between the terminals when the switch is operated.
  Standard:
  
  Fig 11: Standard Specification
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, replace the switch assy.
  
  Fig 12: Identifying Power Seat Switch Assy (Lumbar Support)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT FRONT SEAT ADJUSTER ASSY

Inspect operation of the slide motor.

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

Standard:

MEASUREMENT CONDITION SPECIFICATION

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

If the result is not as specified, replace the slide motor.

Fig 13: Inspecting Front Seat Adjuster Assy

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Only driver side:

Inspect operation of the vertical motor.

Check that the motor rotates smoothly when the battery is connected to the vertical motor connector terminals.

Standard:

MEASUREMENT CONDITION SPECIFICATION

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

If the result is not as specified, replace the vertical motor.

Fig 14: Inspecting Operation Of Vertical Motor

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Only driver side: Inspect operation of the lifter motor.

Check that the motor rotates smoothly when the battery is connected to the lifter motor connector terminals.

Standard:

MEASUREMENT CONDITION SPECIFICATION

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

If the result is not as specified, replace the lifter motor.

Fig 15: Inspecting Operation Of Lifter Motor

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Inspect operation of the reclining motor.

Check that the motor rotates smoothly when the battery is connected to the reclining motor connector terminals.

Standard:

MEASUREMENT CONDITION SPECIFICATION

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

If the result is not as specified, replace the reclining motor.

Fig 16: Inspecting Operation Of Reclining Motor

w/Lumbar support: INSPECT LUMBAR SUPPORT ADJUSTER ASSY

Inspect operation of the lumbar support adjuster motor.

Check that the motor rotates smoothly when the battery is connected to the lumbar support adjuster motor connector terminals.

Standard:

MEASUREMENT CONDITION SPECIFICATION

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

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

Fig 17: Inspecting Operation Of Lumbar Support Adjuster Motor

INSPECT RELAY (IG1)
1. Check the resistance of the IG1 relay.
  Standard:
  
  Fig 18: Standard Tester Connection Specification
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, replace the relay.
  
  Fig 19: Inspecting Relay (IG1)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002