2012 Lexus LS 460 RWDFACTORY OEM SERVICE PROCEDURE

Operation Check

  1. CHECK LOAD CONTROL HISTORYΒ 
    1. Using the Techstream, read the Data List.
      ELECTRIC POWER CONTROL

      Item Measurement Item/Display (Range) Normal Condition Diagnostic Note
      Ctrl Load Lv1 History Load control level 1 history count/
      0 to 255
      History count until now -
      Ctrl Load Lv3 History Load control level 3 history count/
      0 to 255
      History count until now -

    OK

    No load control history (each system may have malfunction)

    NG

    There is load control history (check charging system. Refer to ON-VEHICLE INSPECTION )

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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