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Inspection [01/2017 - ]: Procedure

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

      Standard Resistance (for Bank 1 Sensor 1)

      Tester Connection Condition Specified Condition
      1(HA1A) - 2(+B) 20°C (68°F) 1.6 to 3.2 Ω
      3(A1A+) - 4(A1A-) Always 10 kΩ or higher

      Standard Resistance (for Bank 1 Sensor 2)

      Tester Connection Condition Specified Condition
      1(HA1B) - 2(+B) 20°C (68°F) 2 to 6 Ω
      3(A1B+) - 4(A1B-) Always 10 kΩ or higher

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

      GTY834758Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A for Bank 1 Sensor 1
      *B for Bank 1 Sensor 2
      *a Component without harness connected
      (Air Fuel Ratio Sensor)
  2. INSPECT AIR FUEL RATIO SENSOR (for Bank 2) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (for Bank 2 Sensor 1)

      Tester Connection Condition Specified Condition
      1(HA2A) - 2(+B) 20°C (68°F) 1.6 to 3.2 Ω
      3(A2A+) - 4(A2A-) Always 10 kΩ or higher

      Standard Resistance (for Bank 2 Sensor 2)

      Tester Connection Condition Specified Condition
      1(HA2B) - 2(+B) 20°C (68°F) 2 to 6 Ω
      3(A2B+) - 4(A2B-) Always 10 kΩ or higher

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

      GTY809307Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A for Bank 2 Sensor 1
      *B for Bank 2 Sensor 2
      *a Component without harness connected
      (Air Fuel Ratio Sensor)