On-Vehicle Inspection [09/2014 - ]: Procedure

INSPECT MANIFOLD ABSOLUTE PRESSURE SENSOR

Check the power source voltage.

Disconnect the manifold absolute pressure sensor connector.
Turn the power switch on (IG).

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

GTY531015

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard Voltage

Tester Connection	Condition	Specified Condition
F12-3 (VC) - F12-2 (E2)	Power switch on (IG)	4.75 to 5.25 V
F12-1 (PIM) - F12-2 (E2)	Power switch on (IG)	3.0 to 5.0 V

TEXT IN ILLUSTRATION

*a	Front view of wire harness connector (to Manifold Absolute Pressure Sensor)

Connect the manifold absolute pressure sensor connector.

Check the intake manifold pressure.
1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / MAP.
5. Read the MAP value.
  OK
  
  Same value as the actual atmospheric pressure
  
  HINT:
  - Standard atmospheric pressure is 101 kPa(abs) [760 mmHg(abs)]. For every 100 m (328 ft) increase in altitude, pressure drops by 1 kPa (7.5 mmHg). The pressure also varies due to the weather (high atmospheric pressure, low atmospheric pressure).
  - Also, check "Atmosphere Pressure" in the Data List.