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Front Power Seat Control System: Inspection

  1. INSPECT FRONT POWER SEAT SWITCH LH (w/o SEAT MEMORY SWITCH) 
    1. Measure the resistance between the terminals when each switch is operated.
      Fig 1: Inspecting Front Power Seat Switch LH
      G02942218Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      Slide switch 

      TABLE TESTER CONNECTION SPECIFIED (SLIDE SWITCH)

      Tester Connection Switch Operation 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 

      TABLE TESTER CONNECTION SPECIFIED CONDITION (FRONT VERTICAL SWITCH)

      Tester Connection Switch Operation 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 vertical switch 

      TABLE TESTER CONNECTION SPECIFIED CONDITION (LIFTER VERTICAL SWITCH)

      Tester Connection Switch Operation 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 

      TABLE TESTER CONNECTION SPECIFIED CONDITION (RECLINING SWITCH)

      Tester Connection Switch Operation 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 FRONT POWER SEAT SWITCH RH (w/o SEAT MEMORY SWITCH) 
    1. Measure the resistance between the terminals when each switch is operated.
    Fig 2: Inspecting Front Power Seat Switch RH
    G02942219Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard: 

    Slide switch 

    TABLE TESTER CONNECTION SPECIFIED CONDITION (SLIDE SWITCH)

    Tester Connection Switch Operation 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 

    TABLE TESTER CONNECTION SPECIFIED CONDITION (FRONT VERTICAL SWITCH)

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

    Lifter switch 

    TABLE TESTER CONNECTION SPECIFIED CONDITION (LIFTER SWITCH)

    Tester Connection Switch Operation Specified Condition
    1 (B) - 8 (RUP) UP Below 1 Ω
    4 (E) - 7 (RDWN) UP Below 1 Ω
    4 (E) - 7 (RDWN) OFF Below 1 Ω
    4 (E) - 8 (RUP) OFF Below 1 Ω
    1 (B) -7 (RDWN) DOWN Below 1 Ω
    4 (E) - 8 (RUP) DOWN Below 1 Ω

    Reclining switch 

    TABLE TESTER CONNECTION SPECIFIED CONDITION (RECLINING SWITCH)

    Tester Connection Switch Operation 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.

  3. INSPECT SEAT MEMORY SWITCH 
    1. Measure the resistance between the terminals when each switch is operated.
    Fig 3: Identifying Seat Memory Switch
    G02942220Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard: 

    TABLE TESTER CONNECTION SPECIFIED CONDITION

    Tester Connection Switch Operation Specified Condition
    1 (E) - 4 (1) SW1 switch pushed Below 1 Ω
    1 (E) - 3 (2) SW2 switch pushed Below 1 Ω
    1 (E) - 2 (MMRY) SET switch pushed Below 1 Ω

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

  4. INSPECT POWER SEAT SWITCH ASSY (DRIVER SEAT POSITION) 
    1. Measure the resistance between the terminals when each switch is operated.
    Fig 4: Identifying Power Seat Switch Assy (Lumber Support)
    G02942221Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard: 

    TABLE TESTER CONNECTION SPECIFIED CONDITION

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

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

  5. INSPECT FRONT LH SEAT ASSY 
    1. Check slide motor operation.
      1. Check if the motor rotates smoothly when the battery is connected to the slide motor connector terminals.

      OK 

      Fig 5: Measurement Specified Condition Table
      G02942222Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, replace the front LH seat assy.

      Fig 6: Checking Slide Motor Operation
      G02942223Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check front vertical motor operation.
      1. Check if the motor rotates smoothly when the battery is connected to the vertical motor connector terminals.

      OK: 

      Fig 7: Measurement Specified Condition Table
      G02942224Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, replace the front LH seat assy.

      Fig 8: Checking Front Vertical Motor Operation
      G02942225Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Check lifter motor operation.
      1. Check if the motor rotates smoothly when the battery is connected to the rear vertical motor connector terminals.

      OK: 

      Fig 9: Measurement Specified Condition Table
      G02942226Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, replace the front LH seat assy.

      Fig 10: Checking Lifter Motor Operation
      G02942227Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Check reclining motor operation.
    1. Check if the motor rotates smoothly when the battery is connected to the reclining motor connector terminals.

    OK: 

    Fig 11: Measurement Specified Condition Table
    G02942228Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    If the result is not as specified, replace the front LH seat assy.

    Fig 12: Checking Reclining Motor Operation
    G02942229Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSPECT FRONT RH SEAT ASSY 
    1. Check slide motor operation.
      1. Check if the motor rotates smoothly when the battery is connected to the slide motor connector terminals.

      OK: 

      Fig 13: Measurement Specified Condition Table
      G02942230Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, replace the front RH seat assy.

      Fig 14: Checking Slide Motor Operation
      G02942231Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check front vertical motor operation.
      1. Check if the motor rotates smoothly when the battery is connected to the vertical motor connector terminals.

      OK: 

      Fig 15: Measurement Specified Condition Table
      G02942232Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, replace the front RH seat assy.

      Fig 16: Checking Front Vertical Motor Operation
      G02942233Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Check lifter motor operation.
      1. Check if the motor rotates smoothly when the battery is connected to the rear vertical motor connector terminals.

      OK: 

      Fig 17: Measurement Specified Condition Table
      G02942234Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, replace the front RH seat assy.

      Fig 18: Checking Lifter Motor Operation
      G02942235Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Check reclining motor operation.
    1. Check if the motor rotates smoothly when the battery is connected to the reclining motor connector terminals.

    OK: 

    Fig 19: Measurement Specified Condition Table
    G02942236Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    If the result is not as specified, replace the front RH seat assy.

    Fig 20: Checking Reclining Motor Operation
    G02942237Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. INSPECT LUMBAR SUPPORT ADJUSTER ASSY LH (DRIVER SEAT POSITION) 
    1. Check lumbar support motor operation.
      1. Check if the motor rotates smoothly when the battery is connected to the lumbar support motor connector terminals.

    OK: 

    Fig 21: Measurement Specified Condition Table
    G02942238Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    If the result is not as specified, replace the lumber support adjuster assy LH.

    Fig 22: Inspecting Lumber Support Adjuster Assy LH
    G02942239Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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