On-Vehicle Inspection [10/2022 - ]: Procedure
WARNING: This page is about a different car, the 2025 Toyota Highlander, 2024 Toyota Highlander, and 2023 Toyota Highlander. 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 [10/2022 - 11/2023] , or refer to DATA LIST / ACTIVE TEST [11/2023 - ]
If the result is not as specified, check the cam timing oil control solenoid assembly, wire harness and ECM.