2012 Lexus LS 460L AWDFACTORY OEM SERVICE PROCEDURE

On-Vehicle Inspection

  1. INSPECT FUNCTION OF CAMSHAFT TIMING CONTROL WITH EDU MOTOR ASSEMBLYΒ 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG) and turn the tester on.
    3. Start the engine and warm it up.
    4. Engine is idling.
    5. Enter the following menus: Powertrain/Engine/Active Test/Control the VVT-iE Linear (Bank 1) or Control the VVT-iE Linear (Bank 2)/All Data/VVT Aim Angle (#1) and VVT Change Angle (#1) or VVT Aim Angle (#2) and VVT Change Angle (#2).
    6. Perform the Active Test operation with the engine speed at 1500 rpm.

      OK

      Active Test Movement Order Difference between "VVT Aim Angle" and "VVT Change Angle"
      0 deg β†’ 10 deg β†’ 20 deg β†’ 40 deg β†’ 10 deg β†’ 0 deg β†’ 10 deg β†’ END Within 4 DegFR

      HINT:Β 

      If not within the standard, inspect the camshaft timing control with EDU motor assembly and camshaft timing gear assembly. Refer to INSPECTIONΒ .

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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