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Home >> Lexus >> 2023 >> NX 250 FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (P0627-P107A) >> SFI System >> DTC P062F-44: Internal Control Module EEPROM Data Memory Failure [03/2022 - ] >> Caution / Notice / Hint
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Caution / Notice / Hint

NOTE:
  • After turning ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Refer to BEFORE DISCONNECTING BATTERY [11/2021 - ]

  • To prevent the key from being locked in the vehicle, make sure to enter e-latch inspection mode and enable the manual release handle before disconnecting the cable from the negative (-) auxiliary battery terminal.

    Refer to INSPECTION MODE PROCEDURE [11/2021 - ]

HINT: 

Read Freeze Frame Data using the GTS. 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.