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Home >> Lexus >> 2017 >> NX 300h >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (5 Of 6) >> SFI System >> DTC P062F: Internal Control Module EEPROM Error [05/2019 - ] >> Caution / Notice / Hint
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Caution / Notice / Hint

NOTE:
  • There is a possibility that the DTC P062F is issued from the ECUs of the ECM and hybrid vehicle control ECU.

    Use Techstream to conduct a health check to confirm which ECU the DTC is issued from and then inspect the related system.

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

    Refer to PRECAUTION [05/2019 - ]

  • When disconnecting and reconnecting the auxiliary battery.

    Refer to WORK PROCEDURE [05/2019 - ]

    HINT: 

    When disconnecting and reconnecting the auxiliary 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.