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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (6 Of 9) >> SFI SYSTEM (for 1Motor-HEV Model) >> DTC P062F-44: Internal Control Module EEPROM Data Memory Failure [10/2024 - ] >> Procedure
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DTC P062F-44: Internal Control Module EEPROM Data Memory Failure [10/2024 - ]: Procedure

  1. CLEAR DTC 

    Pre-procedure1

    • None
    • Clear the DTCs.

      Powertrain > Engine > Clear DTCs 

      Result

      Proceed to
      NEXT

    Post-procedure1

    • Turn the ignition switch off.

    Result: 

    NEXT 

    See step  2

  2. READ OUTPUT DTC (DTC P062F-44) 

    Pre-procedure1

    • Disconnect the cable from the negative (-) auxiliary battery terminal and wait for 1 minute.
    • Connect the cable to the negative (-) auxiliary battery terminal.
    • Put the engine in Inspection Mode (for measuring Exhaust Gas).

      Powertrain > Hybrid Control > Utility 

      Tester Display
      Inspection Mode
    • Start the engine and wait 30 seconds or more.
    • Read the DTCs.

      Powertrain > Engine > Trouble Codes 

      Result

      Result Proceed to
      DTCs are not output A
      P062F-44 is output B

    Post-procedure1

    • None

    Result: 

    CHECK FOR INTERMITTENT PROBLEMS. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - ] 

    Result: 

    REPLACE ECM. Refer to  REMOVAL [10/2022 - ]