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Front Power Seat Control System: Inspection

WARNING: This page is about a different car, the 2008 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT FRONT POWER SEAT SWITCH 
    1. Only on the driver side:

      Measure the resistance between the terminals when each switch is operated.

      Resistance: 

      Slide switch 

      Fig 1: Identifying Front Power Seat Switch Connector Terminals
      G05132650Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      FRONT POWER SEAT SWITCH - SLIDE SWITCH

      Tester Connection Switch Condition Specified Condition
      1 (B) - 9 (SLDF) FRONT Below 1 Ω
      4 (E) - 6 (SLDR) FRONT Below 1 Ω
      4 (E) - 6 (SLDR) OFF Below 1 Ω
      4 (E) - 9 (SLDF) OFF Below 1 Ω
      1 (B) - 6 (SLDR) REAR Below 1 Ω
      4 (E) - 9 (SLDF) REAR Below 1 Ω

      Front vertical switch 

      FRONT POWER SEAT SWITCH - VERTICAL SWITCH

      Tester Connection Switch Condition Specified Condition
      1 (B) -10 (FUP) UP Below 1 Ω
      4 (E) - 5 (FDWN) UP Below 1 Ω
      4 (E) - 5 (FDWN) OFF Below 1 Ω
      4 (E)-10 (FUP) OFF Below 1 Ω
      1 (B) - 5 (FDWN) DOWN Below 1 Ω
      4 (E)-10 (FUP) DOWN Below 1 Ω

      Lifter switch 

      FRONT POWER SEAT SWITCH - LIFTER SWITCH

      Tester Connection Switch Condition Specified Condition
      1 (B) - 7 (LUP) UP Below 1 Ω
      4 (E) - 8 (LDWN) UP Below 1 Ω
      4 (E) - 7 (LUP) OFF Below 1 Ω
      4 (E) - 8 (LDWN) OFF Below 1 Ω
      1 (B) - 8 (LDWN) DOWN Below 1 Ω
      4 (E)-7 (LUP) DOWN Below 1 Ω

      Reclining switch 

      FRONT POWER SEAT SWITCH - RECLINING SWITCH

      Tester Connection Switch Condition Specified Condition
      1 (B) - 3 (RCLF) FRONT Below 1 Ω
      2 (RCLR) - 4 (E) FRONT Below 1 Ω
      2 (RCLR) - 4 (E) OFF Below 1 Ω
      3 (RCLF) - 4 (E) OFF Below 1 Ω
      1 (B) - 2 (RCLR) REAR Below 1 Ω
      3 (RCLF) - 4 (E) REAR Below 1 Ω

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

  2. INSPECT POWER SEAT SWITCH ASSEMBLY (LUMBAR SUPPORT) 
    1. Only on the driver side:

      Measure the resistance between the terminals when the switch is operated.

      Standard Resistance 

      POWER SEAT SWITCH ASSEMBLY (LUMBAR SUPPORT)

      Tester Connection Switch Condition Specified Condition
      1(R)-2(E2) HOLD Below 1 Ω
      3(B)-4(H) HOLD Below 1 Ω
      1(R)-2(E2) OFF Below 1 Ω
      4(H)-5(E1) OFF Below 1 Ω
      1(R)-3(B) RELEASE Below 1 Ω
      4(H)-5(E1) RELEASE Below 1 Ω

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

      Fig 2: Inspecting Power Seat Switch Assembly (Lumbar Support)
      G05132651Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT FRONT SEAT ADJUSTER ASSEMBLY 
    1. Only on the driver side:

      Check operation of the slide motor.

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

        OK 

        FRONT SEAT ADJUSTER ASSEMBLY (SLIDE MOTOR)

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

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

        Fig 3: Checking Operation Of Slide Motor
        G05132652Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Only on the driver side:

      Check operation of the vertical motor.

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

        OK 

        FRONT SEAT ADJUSTER ASSEMBLY (VERTICAL MOTOR)

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

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

        Fig 4: Checking Operation Of Vertical Motor
        G05132653Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Only on the driver side:

      Check operation of the lifter motor.

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

        OK 

        FRONT SEAT ADJUSTER ASSEMBLY (LIFTER MOTOR)

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

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

        Fig 5: Checking Operation Of Lifter Motor
        G05132654Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Only on the driver side:

      Check operation of the reclining motor.

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

        OK 

        FRONT SEAT ADJUSTER ASSEMBLY (RECLINING MOTOR)

        Measurement Condition Operational Direction
        Battery positive (+) → 2
        Battery negative (-) → 1        		 Clockwise
        Battery positive (+) → 1
        Battery negative (-) → 2        		 Counterclockwise
        Fig 6: Checking Operation Of Reclining Motor
        G05132655Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

  4. INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY 
    1. Only on the driver side:

      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.

        OK 

        LUMBAR SUPPORT ADJUSTER ASSEMBLY

        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 adjuster motor.

        Fig 7: Checking OperationOf Lumbar Support Adjuster Motor
        G05132656Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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