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Home >> Lexus >> 2021 >> NX 300h Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (Service Information) >> Camshaft Oil Control Valve >> On-Vehicle Inspection [10/2014 - ] >> Procedure
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On-Vehicle Inspection [10/2014 - ]: Procedure

  1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY 
    1. Connect the Techstream to the DLC3.
    2. Turn the Techstream on.
    3. Put the engine in inspection mode (maintenance mode).

      Refer to INSPECTION MODE PROCEDURE [10/2014 - ]

    4. Start the engine.
    5. Warm up the engine.
    6. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Linear (Bank1).

      Powertrain > Engine and ECT > Active Test 

      Tester Display
      Control the VVT Linear (Bank1)
    7. Check the engine speed while operating the Oil Control Valve (OCV) using the Techstream.

      Standard Condition

      Control Range Specified Condition
      0% Normal engine speed
      100% Soon after OCV switched from OFF to ON, engine idles roughly or stalls

      If the operation is not as specified, check the camshaft timing oil control valve assembly, wire harness and ECM.