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Air Fuel Ratio Sensor: Inspection

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

    Standard Resistance 

    TESTER CONNECTION SPECIFIED CONDITION CHART

    Tester Connection Condition Specified Condition
    1 (HA1A) - 2(+B) (for Bank 1) 20°C (68°F) 1.8 to 3.4 Ω
    1 (HA2A) - 2 (+B) (for Bank 2)

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

    Fig 1: Identifying Terminals Of Air Fuel Ratio Sensor Connector
    G05628281Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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