2010 Lexus LS 460L AWDFACTORY OEM SERVICE PROCEDURE

DTC P062F: Internal Control Module EEPROM Error: Procedure

  1. READ OUTPUT DTC (DTC P062F) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Clear DTCs. Refer toDTC CHECK / CLEAR .
    5. Turn the engine switch off and turn the Techstream off.
    6. Disconnect the Techstream.
    7. Disconnect the cable from the negative (-) battery terminal and wait for 1 minute. Refer toPRECAUTION .
    8. Connect the cable to the negative (-) battery terminal. Refer toPRECAUTION .
    9. Connect the Techstream to the DLC3.
    10. Turn the engine switch on (IG) and turn the Techstream on.
    11. Wait 30 seconds or more.
    12. Enter the following menus: Powertrain / Engine / Trouble Codes.
    13. Read the DTCs.
      RESULT

      Result Proceed to
      No DTC output A
      DTC P062F output B

    B → See step   2 

    A → See step   3 

  2. REPLACE ECM. Refer to REMOVAL 
  3. CHECK FOR INTERMITTENT PROBLEMS. Refer to CHECK FOR INTERMITTENT PROBLEMS 
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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

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