VACUUM SENSOR ASSEMBLY ON-VEHICLE INSPECTION


  1. INSPECT VACUUM SENSOR ASSEMBLY


    1. A011BVVE06
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Vacuum Sensor Assembly)

      Inspect the power source voltage.


      1. Disconnect the vacuum sensor connector.

      2. Turn the ignition switch to ON.

      3. Measure the voltage according to the value(s) in the table below.

        Standard Voltage
        Tester Connection Switch Condition Specified Condition
        3 (VC) - 1 (E2) Ignition Switch ON 4.75 to 5.25 V

        If the result is not as specified, check the harness, connector, and engine stop and start ECU Click here.

      4. Turn the ignition switch off.

      5. Connect the vacuum sensor connector.

    2. Inspect the atmospheric pressure voltage.


      1. Disconnect the vacuum hose from the vacuum sensor.

      2. Measure the PB terminal voltage at the engine stop and start ECU according to the value(s) in the table below.

        A011AT2E04
        Text in Illustration
        *a

        Component with harness connected

        (Engine Stop and Start ECU)

        		 - -
        Standard Voltage
        Tester Connection Condition Specified Condition
        11 (PB) - 24 (E2) Atmospheric pressure 3.4 to 3.8 V

        If the result is not as specified, check the harness and connector Click here.

    3. Inspect the brake negative pressure.


      1. Disconnect the vacuum hose from the vacuum sensor.

      2. A0117QV

        Connect a vacuum pump to the vacuum sensor.

      3. Connect the intelligent tester to the DLC3.

      4. Turn the ignition switch to ON and turn the tester on.

      5. Enter the following menus: Powertrain / Stop and Start / Data List.

      6. Read the value when applying vacuum using the vacuum pump.

        Standard
        Tester Display Absolute pressure *1 Specified Condition
        Brake Negative Pressure

        20 kPa (0.20 kgf/cm2)

        20 kPa (0.20 kgf/cm2)

        60 kPa (0.61 kgf/cm2)

        60 kPa (0.61 kgf/cm2)

        100 kPa (1.0 kgf/cm2)

        100 kPa (1.0 kgf/cm2)

        *1 Absolute pressure = Atmosphere pressure - Vacuum supplied by the vacuum pump.

        Standard atmospheric pressure: 101 kPa

        For every 100 m increase in altitude, pressure drops by 1 kPa.

        Varies by weather (high atmospheric pressure, low atmospheric pressure).

        If the result is not as specified, check the harness and connector Click here.