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 CAM TIMING OIL CONTROL SOLENOID ASSEMBLY (for Intake Side)
- Start the engine.
- Read the Data List while performing the Active Test with the engine idling.
Powertrain > Engine > Active Test
Active Test Display Control the Intake VVT OCV Duty Ratio Bank 1 Data List Display Intake VVT Change Angle Bank 1 Standard Condition
GTS Operation Data List (Intake VVT Change Angle Bank 1) -100% to 100% Varies by 70 DegFR or more If the result is not as specified, check the cam timing oil control solenoid assembly, wire harness and ECM.
- INSPECT CAM TIMING OIL CONTROL SOLENOID ASSEMBLY (for Exhaust Side)
- Start the engine.
- According to the display on the GTS, perform the Active Test and check the engine speed while operating the cam timing oil control solenoid assembly.
Powertrain > Engine > Active Test
Tester Display Control the Exhaust VVT OCV Duty Ratio Bank 1 Standard Condition
GTS Operation Engine Condition 0% Normal engine speed 100% Engine idles roughly or stalls HINT:
Refer to "Data List / Active Test" [Exhaust VVT Hold Learn Value Bank 1, Exhaust VVT Change Angle Bank 1, Exhaust VVT OCV Control Duty Ratio Bank 1 and Exhaust VVT Target Angle Bank 1].
Refer to DATA LIST / ACTIVE TEST [11/2021 - 03/2023] , or refer to DATA LIST / ACTIVE TEST [03/2023 - 03/2024] , or refer to DATA LIST / ACTIVE TEST [03/2024 - ]
If the result is not as specified, check the cam timing oil control solenoid assembly, wire harness and ECM.