Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Lexus >> 2021 >> ES 300h Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (A25A-FXS) - Service Information >> ECM >> Removal [06/2018 - 08/2020] >> Caution / Notice / Hint

Caution / Notice / Hint

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during ECM removal/installation are shown below.

NECESSARY PROCEDURES AFTER PARTS REMOVED/INSTALLED/REPLACED

Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Auxiliary battery terminal is disconnected/reconnected Perform steering sensor zero point calibration Lane Control System (for HV Model) Refer to INITIALIZATION [06/2018 - 08/2021]
Pre-collision System (for HV Model)
Parking Support Brake System (for HV Model)*
Lighting System (for HV Model)
Memorize steering angle neutral point Parking Assist Monitor System (for HV Model) Refer to INITIALIZATION [06/2018 - 09/2022]
Panoramic View Monitor System (for HV Model) Refer to INITIALIZATION [06/2018 - 09/2022]
Initialize power trunk lid system Power Trunk Lid System (for HV Model) Refer to INITIALIZATION [06/2018 - ]
Replacement of ECM Perform Vehicle Identification Number (VIN) registration MIL illuminates Refer to REGISTRATION [06/2018 - ]

*: When performing learning using the Techstream.

NOTE:
  • After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System)
  • After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Navigation System)
  • If the ECM has been struck or dropped, replace it.
  • Perform Vehicle Identification Number (VIN) registration when replacing the ECM.

    Refer to REGISTRATION [06/2018 - ]