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Air Fuel Ratio Sensor: Inspection

  1. INSPECT AIR FUEL RATIO SENSOR (for Bank 1 Sensor 1) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      1 (HA1A) - 2 (+B) 20°C (68°F) 1.8 to 3.4 Ω

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

      Fig 1: Identifying Air Fuel Ratio Sensor Connector Terminals
      G05997212Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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