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Air Fuel Ratio Sensor: Inspection: Inspection

WARNING: This page is about a different car, the 2011 Toyota Matrix. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT AIR FUEL RATIO SENSOR 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 1: Inspecting Air Fuel Ratio Sensor Connector Terminals
      GTY233805Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      (HA1A) - (+B) 20°C (68°F) 1.8 to 3.4 Ω
      (HA1A) - (A1A-) - 10 kΩ or higher

      If the resistance is not as specified, replace the air fuel ratio sensor.

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