AIR FUEL RATIO SENSOR INSPECTION

PROCEDURE

  1. INSPECT AIR FUEL RATIO SENSOR

    1. A226559C02

      *A

      for Bank 1

      *B

      for Bank 2

      *a

      Component without harness connected

      (Air Fuel Ratio Sensor)

      Measure the heater resistance according to the value(s) in the table below.

      Standard Resistance (for Bank 1)

      Tester Connection

      Condition

      Specified Condition

      1 (HA1A) - 2 (+B)

      20°C (68°F)

      1.8 to 3.4 Ω

      1 (HA1A) - 4 (A1A-)

      Always

      10 kΩ or higher

      Standard Resistance (for Bank 2)

      Tester Connection

      Condition

      Specified Condition

      1 (HA2A) - 2 (+B)

      20°C (68°F)

      1.8 to 3.4 Ω

      1 (HA2A) - 4 (A2A-)

      Always

      10 kΩ or higher

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