Air Fuel Ratio Sensor Inspection

Engine. Lexus Is250, Is220D. Gse20 Ale20
2Ad-Fhv Emission Control. Lexus Is250, Is220D. Gse20 Ale20

  1. INSPECT AIR FUEL RATIO SENSOR

Air Fuel Ratio Sensor -- Inspection



1. INSPECT AIR FUEL RATIO SENSOR


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Emission Control.Emission Control System.Air Fuel Ratio Sensor Inspection

  1. Inspect the resistance.

    1. Using an ohmmeter, measure the resistance according to the value(s) in the table below.

      Terminals
      		Condition
      		Resistance
      1 (HT) - 2 (+B)
      		20°C (68°F)
      		1.8 to 3.4 Ω
      1 (HT) - 4 (AF-)
      		Always
      		10 kΩ or higher
      HINT:
      The temperature indicated in "Condition" is the temperature of the air fuel ratio sensor.
      If the result is not as specified, replace the air fuel ratio sensor.