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Home >> Scion >> 2009 >> xD Standard >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning >> PTC Heater Assembly >> Inspection

PTC Heater Assembly: Inspection

  1. INSPECT PTC HEATER ASSEMBLY 
    1. Disconnect the connector from the PTC heater.
    2. Fig 1: Identifying PTC Heater Connector Terminals
      G05401789Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      1 - Ground terminal Always Below 1 Ω
      2 - Ground terminal Always Below 1 Ω
      3 - Ground terminal Always Below 1 Ω

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