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Front Seat Cushion Heater: Inspection

  1. INSPECT FRONT SEAT CUSHION COVER SUB-ASSEMBLY LH 
    1. Disconnect the connector.
    2. Check the seat cushion heater.
      1. Measure the resistance according to the value(s) in the table below.
        Fig 1: Identifying Seat Cushion Heater Connectors
        G04953230Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard resistance 

        FRONT SEAT CUSHION COVER SUB-ASSEMBLY LH

        Tester Connection Condition Specified Condition
        e42-2 - e42-4 17 to 23°C
        (63 to 73°F)        		 3.7 to 4.6 Ω
        e42-2 - A-1
        e42-2 - B-1        		 Always Below 1 Ω
        e42-4 - A-2
        e42-4 - B-2        		 Always Below 1 Ω

        If the result is not as specified, replace the front seat cushion cover.

    3. Check the seat cushion heater (wing part).
      1. Measure the resistance according to the value(s) in the table below.
        Fig 2: Identifying Seat Cushion Heater (Wing Part) Connectors
        G04953231Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard resistance 

        SEAT CUSHION HEATER (WING PART)

        Tester Connection Condition Specified Condition
        1-2 17 to 23°C
        (63 to 73°F)        		 7.7 to 9.5 Ω

        If the result is not as specified, replace the front seat cushion cover.

  2. INSPECT FRONT SEAT CUSHION COVER SUB-ASSEMBLY RH 
    1. Disconnect the connector.
    2. Check the seat cushion heater.
      1. Measure the resistance according to the value(s) in the table below.
        Fig 3: Identifying Seat Cushion Heater Connectors
        G04953232Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard resistance 

        FRONT SEAT CUSHION COVER SUB-ASSEMBLY RH

        Tester Connection Condition Specified Condition
        e9-2 - e9-4 17 to 23°C
        (63 to 73°F)        		 3.7 to 4.6 Ω
        e9-2 - A-1
        e9-2 - B-1        		 Always Below 1 Ω
        e9-4 - A-2
        e9-4 - B-2        		 Always Below 1 Ω

        If the result is not as specified, replace the front seat set (cushion assembly, occupant classification ECU and 2 nuts).

    3. Check the seat cushion heater (wing part).
      1. Measure the resistance according to the value(s) in the table below.
        Fig 4: Identifying Seat Cushion Heater Connectors
        G04953233Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard resistance 

        SEAT CUSHION HEATER (WING PART)

        Tester Connection Condition Specified Condition
        1-2 17 to 23°C
        (63 to 73°F)        		 7.7 to 9.5 Ω

        If the result is not as specified, replace the front seat set (cushion assembly, occupant classification ECU and 2 nuts).

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