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Home >> Lexus >> 2021 >> NX 300 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (2 Of 9) >> SFI System >> DTC P062F-44: Internal Control Module EEPROM Data Memory Failure [05/2019 - ] >> Caution / Notice / Hint
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Caution / Notice / Hint

NOTE:
  • After the engine switch is turned off, there may be a waiting time before disconnecting the negative (-) battery terminal.

    Refer to PRECAUTION [05/2019 - ]

  • When disconnecting and reconnecting the battery.

    Refer to WORK PROCEDURE [05/2019 - ]

    HINT: 

    When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

    Refer to AUTOMATIC LEARNING CHART [05/2019 - ]

HINT: 

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.