Manifold Absolute Pressure Sensor On-Vehicle Inspection


  1. INSPECT DIESEL TURBO PRESSURE SENSOR

Manifold Absolute Pressure Sensor -- On-Vehicle Inspection



1. INSPECT DIESEL TURBO PRESSURE SENSOR


  1. Inspect the power source voltage.

    1. Disconnect the diesel turbo pressure sensor connector.

    2. Turn the engine switch on (IG).



      3. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Gd-Ftv Engine Control.Ecd System.Manifold Absolute Pressure Sensor On-Vehicle Inspection

    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)
      		Engine switch on (IG)
      		4.75 to 5.25 V
      Text in Illustration
      *a
      		Front view of wire harness connector
      (to Diesel Turbo Pressure Sensor)

    4. Turn the engine switch off.

    5. Connect the diesel turbo pressure sensor connector.

    6. Clear the DTCs.



  1. Inspect the diesel turbo pressure sensor.

    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Atmosphere Pressure and MAP.

    5. Disconnect the vacuum hose from the diesel turbo pressure sensor.



      6. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Gd-Ftv Engine Control.Ecd System.Manifold Absolute Pressure Sensor On-Vehicle Inspection

    6. Using SST, apply pressure to the diesel turbo pressure sensor.

      SST
      09992-00242
      Text in Illustration
      *a
      		Vacuum Pump

    7. Using a vacuum pump, apply vacuum to the diesel turbo pressure sensor.

    8. Read the value.

      OK:
      Condition
      		MAP Value
      No pressure applied
      		Same as atmospheric pressure
      Pressure applied
      		Indicates pressure
      Vacuum applied
      		Indicates vacuum
      If the result is not as specified, replace the diesel turbo pressure sensor or ECM.