On-Vehicle Inspection [11/2021 - ]: Procedure
WARNING: This page is about a different car, the 2025 Lexus NX 350, 2024 Lexus NX 350, 2023 Lexus NX 350, and 2022 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT NO. 2 TURBO PRESSURE SENSOR
- Check the terminal voltage.
- Disconnect the No. 2 turbo pressure sensor connector.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition B72-3 (VC) - B72-2 (E2) Ignition switch ON 4.5 to 5.5 V B72-1 (PTA) - B72-2 (E2) 3.0 to 5.5 V If the result is not as specified, repair or replace the wire harness or connector.
*a Front view of wire harness connector
(to No. 2 Turbo Pressure Sensor)
- Check the turbo pressure.
- Turn the ignition switch to ON.
- According to the display on the GTS read the Data List.
Powertrain > Engine > Data List
Tester Display Boost Pressure Sensor OK
The value is approximately equal to atmospheric pressure.
HINT:
- Standard atmospheric pressure is approximately 101 kPa (abs) (15 psi (abs)).
- For every 100 m (328 ft) increase in altitude, atmospheric pressure drops by approximately 1 kPa (0.15 psi). This varies by weather.
- Check the terminal voltage.