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Home >> Lexus >> 2014 >> GS 350 Base, RWD >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission (Aa81E) (Diagnostic Codes (2 Of 2) >> Automatic Transmission System >> DTC P062F: Internal Control Module EEPROM Error [09/2013 - ] >> Procedure
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DTC P062F: Internal Control Module EEPROM Error [09/2013 - ]: 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 the DTCs.

      HINT: 

      Write down the currently output DTCs before clearing them.

    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.
    8. Connect the cable to the negative (-) battery terminal.
    9. Connect the Techstream to the DLC3.
    10. Turn the engine switch on (IG).
    11. Turn the Techstream on.
    12. Enter the following menus: Powertrain / ECT / Trouble Codes.
    13. Read DTCs.
      RESULT

      Result Proceed to
      DTCs are not output A
      DTC P062F is output B

    B → See step   2 

    A → See step   3 

  2. REPLACE TCM 
    1. Replace the TCM. Refer to REMOVAL [09/2013 - ] .

    NEXT → See step   4 

  3. CHECK FOR INTERMITTENT PROBLEMS. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2013 - ] 
  4. PERFORM A/T CODE REGISTRATION. Refer to  REGISTRATION [09/2013 - ]