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Home >> Toyota >> 2020 >> Avalon Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 38 (Engine Control System (Service Information) [A25A-FXS]) >> ECM >> Removal [04/2018 - 08/2020] >> Caution/Notice/Hint

Removal [04/2018 - 08/2020]: Caution/Notice/Hint

WARNING: This page is about a different variant/trim than selected.

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 Departure Alert System (w/ Steering Control) Refer to INITIALIZATION [04/2018 - 08/2021]
Pre-collision System
Intelligent Clearance Sonar System*
Lighting System (for HV Model with Cornering Light)
Memorize steering angle neutral point Parking Assist Monitor System Refer to INITIALIZATION [04/2018 - ]
Panoramic View Monitor System Refer to INITIALIZATION [04/2018 - ]
Replacement of ECM Perform Vehicle Identification Number (VIN) registration MIL illuminates Refer to REGISTRATION [04/2018 - ]

*: When performing learning using the Techstream.

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

    Refer to PRECAUTION [04/2018 - ]

  • If the ECM has been struck or dropped, replace it.
  • Perform Vehicle Identification Number (VIN) registration when replacing the ECM.

    Refer to REGISTRATION [04/2018 - ]