8. Visually Inspect Hoses, Connections And Gaskets

1. Inspect the power source voltage of the vapor pressure sensor.
   1. Turn the ignition switch ON.
   2. Using a voltmeter, measure the voltage between connector terminal VC and E2 of the wiring harness side.

      Voltage: 4.5 to 5.5 V 

   3. Turn the ignition switch OFF.
   Fig 1: Measuring Voltage

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Inspect the power output of the vapor pressure sensor.

1. Turn the ignition switch ON.
2. Remove the fuel tank cap.
3. Using a voltmeter, measure the voltage between connector terminals PTNK and E2 of the wiring harness side.

   Voltage: 3.0 to 3.6 V 

4. Reinstall the fuel tank cap.

Fig 2: Measuring Voltage

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002