Air Fuel Ratio Sensor - Inspection

Lexus IS250 IS220d GSE20 ALE20 2AD-FHV EMISSION CONTROL

AIR FUEL RATIO SENSOR - INSPECTION

1. INSPECT AIR FUEL RATIO SENSOR
Air Fuel Ratio Sensor - Inspection. 2AD-FHV EMISSION CONTROL. Lexus IS250 IS220d GSE20 ALE20

Inspect the resistance.

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

  • TerminalsConditionResistance
    1 (HT) - 2 (+B)20°C (68°F)1.8 to 3.4 Ω
    1 (HT) - 4 (AF-)Always10 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.