On-Vehicle Inspection [11/2021 - ]: Procedure

WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT PCV VALVE (VENTILATION VALVE SUB-ASSEMBLY)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check the PCV valve (ventilation valve sub-assembly) operation.

Start the engine.

Powertrain > Hybrid Control > Utility

Tester Display
Inspection Mode

Slide the clip and disconnect the No. 2 ventilation hose from the air cleaner hose assembly.
Check that air is sucked into the No. 2 ventilation hose.
Standard

Air is sucked into the No. 2 ventilation hose.

If the result is not as specified, replace the PCV valve (ventilation valve sub-assembly).