SMOG VENTILATION SENSOR INSPECTION

PROCEDURE

  1. INSPECT SMOG VENTILATION SENSOR

    1. E247321C01

      *a

      Component without harness connected

      (Smog Ventilation Sensor)

      HC, CO

      1. Connect the battery positive (+) lead to terminal 3 (IG) and the 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.

    2. E247321C02

      *a

      Component without harness connected

      (Smog Ventilation Sensor)

      NOx

      1. Connect the battery positive (+) lead to terminal 3 (IG) and the 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 2.5 kΩ to 40 kΩ.

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