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SMOG VENTILATION SENSOR INSPECTION

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    INSPECT SMOG VENTILATION SENSOR


    1. A01NJXQE15

      HC, CO


      1. Connect a battery positive (+) lead to terminal 3 (IG) and a negative (-) lead to terminal 6 (E).

      2. Allow exhaust gas (HC, CO) to travel to the sensing portion of the smog ventilation sensor, and measure the resistance between terminals 1 (SG) and 2 (DGS).

        OK
        When the sensor is exposed to the exhaust gas, the resistance increases.
        Tip:

        The resistance before blowing exhaust gas is 10 kΩ to 40 kΩ.

        If the result is not as specified, replace the smog ventilation sensor.

        Table 1. Text in Illustration
        *1

        Component without harness connected

        (Smog Ventilation Sensor)
    2. A01NJXQE21

      NOx


      1. Connect a battery positive (+) lead to terminal 3 (IG) and a negative (-) lead to terminal 6 (E).

      2. Allow exhaust gas (NOx) to travel to the sensing portion of the smog ventilation sensor, and measure the resistance between terminals 1 (SG) and 4 (DGS1).

        OK
        When the sensor is exposed to the exhaust gas, the resistance increases.
        Tip:

        The resistance before blowing exhaust gas is 10 kΩ to 40 kΩ.

        If the result is not as specified, replace the smog ventilation sensor.

        Table 2. Text in Illustration
        *1

        Component without harness connected

        (Smog Ventilation Sensor)