Front Power Seat Control System: Inspection

1. Check the resistance between the terminals when each switch is operated.

   Standard: 

   Slide switch 

   SLIDE SWITCH SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   1 - 9	FRONT	Below 1 Ω
   4 - 6	FRONT	Below 1Ω
   4 - 6	OFF	Below 1Ω
   4 - 9	OFF	Below 1 Ω
   1 - 6	REAR	Below 1 Ω
   4 - 9	REAR	Below 1 Ω

   Driver's seat only: 

   Front vertical switch 

   FRONT VERTICAL SWITCH SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   1 - 10	UP	Below 1 Ω
   4 - 5	UP	Below 1 Ω
   4 - 5	OFF	Below 1 Ω
   4 - 10	OFF	Below 1 Ω
   1 - 5	DOWN	Below 1 Ω
   4 - 10	DOWN	Below 1 Ω

   Driver's seat only: 

   Rear vertical switch 

   REAR VERTICAL SWITCH SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   1 - 7	UP	Below 1 Ω
   4 - 8	UP	Below 1 Ω
   4 - 7	OFF	Below 1 Ω
   4 - 8	OFF	Below 1 Ω
   1 - 8	DOWN	Below 1 Ω
   4 - 7	DOWN	Below 1 Ω

   Reclining switch 

   RECLINING SWITCH SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   1 - 3	FRONT	Below 1 Ω
   2 - 4	FRONT	Below 1 Ω
   2 - 4	OFF	Below 1 Ω
   3 - 4	OFF	Below 1 Ω
   1 - 2	REAR	Below 1 Ω
   3 - 4	REAR	Below 1 Ω

   If the result is not as specified, replace the switch.

   Fig 1: Inspecting Front Power Seat Switch LH

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check the resistance between the terminals when each switch is operated.

   Standard: 

   Slide switch 

   SLIDE SWITCH SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   1 - 9	FRONT	Below 1 Ω
   4 - 6	FRONT	Below 1 Ω
   4 - 6	OFF	Below 1 Ω
   4 - 9	OFF	Below 1 Ω
   1 - 6	REAR	Below 1 Ω
   4 - 9	REAR	Below 1 Ω

   Reclining switch 

   RECLINING SWITCH SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   1 - 3	FRONT	Below 1 Ω
   2 - 4	FRONT	Below 1 Ω
   2 - 4	OFF	Below 1 Ω
   3 - 4	OFF	Below 1 Ω
   1 - 2	REAR	Below 1 Ω
   3 - 4	REAR	Below 1 Ω

   If the result is not as specified, replace the switch.

Fig 2: Inspect Fronting 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: 

   TESTER CONNECTION - SWITCH CONDITION SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   1 - 2	HOLD	Below 1 Ω
   3 - 4	HOLD	Below 1 Ω
   1 - 2	OFF	Below 1 Ω
   4 - 5	OFF	Below 1 Ω
   1 - 3	RELEASE	Below 1 Ω
   4 - 5	RELEASE	Below 1 Ω

   If the result is not as specified, replace the switch assy.

Fig 3: Inspecting Power Seat Switch Assy (Lumbar Support)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard: 

   MEASUREMENT CONDITION - OPERATION DIRECTION SPECIFICATION
   
   

   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 slide motor.

   Fig 4: Checking Operation Of Slide Motor

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Driver's seat only:

   Check operation of the front vertical motor.

   1. Check if the motor rotates smoothly when the battery is connected to the front vertical motor connector terminals.

   Standard: 

   MEASUREMENT CONDITION - OPERATION DIRECTION SPECIFICATION
   
   

   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 front vertical motor.

   Fig 5: Checking Operation Of Front Vertical Motor

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Driver's seat only:

   Check operation of the rear vertical motor.

   1. Check if the motor rotates smoothly when the battery is connected to the rear vertical motor connector terminals.

   Standard: 

   MEASUREMENT CONDITION - OPERATION DIRECTION SPECIFICATION
   
   

   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 rear vertical motor.

   Fig 6: Checking Operation Of Rear Vertical Motor

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Check operation of the reclining motor.
   1. Check if the motor rotates smoothly when the battery is connected to the reclining motor connector terminals.

   Standard: 

   MEASUREMENT CONDITION - OPERATION DIRECTION SPECIFICATION
   
   

   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 rear vertical motor.

   Fig 7: Checking Operation Of Reclining Motor

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT LUMBAR SUPPORT ADJUSTER ASSY 

1. Check operation of the lumbar support adjuster motor.
   1. Check if the motor rotates smoothly when the battery is connected to the lumbar support adjuster motor connector terminals.

   Standard: 

   MEASUREMENT CONDITION - OPERATION DIRECTION SPECIFICATION
   
   

   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 rear vertical motor.

   Fig 8: Checking Operation Of Lumbar Support Adjuster Motor

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002