VACUUM SENSOR ASSEMBLY > ON-VEHICLE INSPECTION



1. INSPECT VACUUM SENSOR ASSEMBLY


    A162709E06

  1. 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.
      Text in Illustration 
      *a
      		Front view of wire harness connector
      (to Vacuum Sensor Assembly)

      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.



  1. 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.


      A201383E04


      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).



  1. Inspect the brake negative pressure.

    1. Disconnect the vacuum hose from the vacuum sensor.



      2. A219817

    2. 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).