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PTC Heater Assembly: Inspection

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT PTC HEATER ASSEMBLY 
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTOR SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      A-1 - B-1 23 to 25°C (73 to 77°F) 0.5 to 2.5 Ω
      A-2 - B-1 23 to 25°C (73 to 77°F) 0.5 to 2.5 Ω
      A-2 - B-2 23 to 25°C (73 to 77°F) 0.5 to 2.5 Ω
      A-3 - B-2 23 to 25°C (73 to 77°F) 0.5 to 2.5 Ω

      If the result is not as specified, replace the PTC heater assembly.

      Fig 1: Identifying Terminals Of PTC Heater Assembly Connector
      G04950671Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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