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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Body & Frame >> Seats >> Seats - Service Information (3 Of 3) >> FRONT SEAT CUSHION HEATER (for Power Seat) >> Inspection [12/2019 - ] >> Procedure

Inspection [12/2019 - ]: Procedure

  1. INSPECT FRONT SEAT CUSHION HEATER ASSEMBLY LH 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1005468Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Front Seat Cushion Heater Assembly LH)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A-1 - A-2 Seat heater temperature 20°C (68°F) 3.28 to 3.92 Ω
      e19-2 - A-2 Seat heater temperature 20°C (68°F) Below 1 Ω
      e19-4 - e19-5 Seat heater temperature 20°C (68°F) 11.94 to 12.24 kΩ
      e19-2 - e19-6 Seat heater temperature 20°C (68°F) Below 1 Ω
      e19-1 - e19-2 Seat heater temperature 20°C (68°F) 3.19 to 3.83 Ω

      If the result is not as specified, replace the front seat cushion heater assembly LH.

  2. INSPECT FRONT SEAT CUSHION HEATER ASSEMBLY RH 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1005471Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Front Seat Cushion Heater Assembly RH)

      Standard Resistance

      Tester Connection Condition Specified Condition
      B-1 - B-2 Seat heater temperature 20°C (68°F) 3.28 to 3.92 Ω
      e8-2 - B-2 Seat heater temperature 20°C (68°F) Below 1 Ω
      e8-4 - e8-5 Seat heater temperature 20°C (68°F) 11.94 to 12.24 kΩ
      e8-2 - e8-6 Seat heater temperature 20°C (68°F) Below 1 Ω
      e8-1 - e8-2 Seat heater temperature 20°C (68°F) 3.19 to 3.83 Ω

      If the result is not as specified, replace the front seat cushion heater assembly RH.