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Inspection [10/2017 - ]: 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
      D18-1 (HA1A) - D18-2 (+B) 20°C (68°F) 1.6 to 3.2 Ω
      D18-3 (A1A+) - D18-4 (A1A-) Always 10 kΩ or higher

      Standard Resistance (for Bank 1 Sensor 2)

      Tester Connection Condition Specified Condition
      D16-1 (HA1B) - D16-2 (+B) 20°C (68°F) 2 to 6 Ω
      D16-3 (A1B+) - D16-4 (A1B-) Always 10 kΩ or higher

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

      GTY809310Courtesy 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
      D19-1 (HA2A) - D19-2 (+B) 20°C (68°F) 1.6 to 3.2 Ω
      D19-3 (A2A+) - D19-4 (A2A-) Always 10 kΩ or higher

      Standard Resistance (for Bank 2 Sensor 2)

      Tester Connection Condition Specified Condition
      D17-1 (HA2B) - D17-2 (+B) 20°C (68°F) 2 to 6 Ω
      D17-3 (A2B+) - D17-4 (A2B-) Always 10 kΩ or higher

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

      GTY809308Courtesy 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)