Manifold Absolute Pressure Sensor On-Vehicle Inspection

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	4.5 to 5.5 V

   Text in Illustration

   *1	Front view of wire harness connector (to Vacuum Sensor)

4. Turn the ignition switch off.
   

5. Reconnect the vacuum sensor connector.
   

Check the vacuum and pressure.

1. Connect the intelligent tester to the DLC3.
   

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

3. Enter the following menus: Powertrain / Engine and ECT / Data List / MAP.
   

4. Read the MAP value.
   

   OK:

   Condition	Specified Condition
   No pressure applied	Same as atmospheric pressure
   Vacuum applied	Indicates vacuum
   Pressure applied	Indicates pressure

   If the result is not as specified, replace the vacuum sensor.