Turbocharging Pressure Sensor - Sensor Test
- Disconnect harness connector from Turbocharging Pressure Sensor. Connect a series of three 1.5-volt dry-cell batteries together with a wire lead at each end. Connect the positive lead to terminal No. 3 of the sensor. Connect the negative lead to terminal No. 1 of the sensor.
- Connect the positive lead of a voltmeter to terminal No. 2 (center terminal). Connect the negative lead of the voltmeter to terminal No. 1. Voltage reading between terminals No. 1 and 2 should be approximately 2.4 volts. See. Fig 1.
- Using a vacuum pump, apply 7.87 in. Hg. (26.7 kPa) of vacuum to the sensor. Check that the voltage drops below 2.4 volts.
- Using Pressure Pump (09992-00241), apply 7.1 psi (4.9 kPa) of pressure to the sensor. Voltage should rise approximately 2.4 volts. If voltage readings do not respond as specified, replace the Turbocharging Pressure Sensor.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002