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PTC Heater Assembly: Inspection

  1. INSPECT PTC HEATER 
    1. Disconnect the connector from the PTC heater.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      A-1 (B) - B-1 (E) Always Below 1 Ω
      A-3 (B) - B-2 (E) Always Below 1 Ω

      If the resistance is not as specified, replace the PTC heater.

      Fig 1: Identifying PTC Heater Connector Terminals
      G06015506Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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