Caution / Notice / Hint
WARNING: This page is about a different car, the 2024 Lexus ES 250, 2023 Lexus ES 250, 2022 Lexus ES 250, and 2021 Lexus ES 250. However, it is still accessible from the selected car via links, so may be relevant.
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 |
|---|---|---|---|
| Battery terminal is disconnected/reconnected | Perform steering sensor zero point calibration | Lane Control System (for Gasoline Model) | Refer to INITIALIZATION [06/2018 - 08/2021] |
| Pre-collision System (for Gasoline Model) | |||
| Parking Support Brake System (for Gasoline Model)*1 | |||
| Lighting System (for Gasoline Model) | |||
| Memorize steering angle neutral point | Parking Assist Monitor System (for Gasoline Model) | Refer to INITIALIZATION [06/2018 - 09/2022] | |
| Panoramic View Monitor System (for Gasoline Model) | Refer to INITIALIZATION [06/2018 - 09/2022] | ||
| Initialize power trunk lid system | Power Trunk Lid System (for Gasoline Model) | Refer to INITIALIZATION [06/2018 - ] | |
| Replacement of ECM | Vehicle Identification Number (VIN) registration | MIL comes on | Refer to REGISTRATION [08/2020 - ] |
| ECU communication ID registration (Immobiliser system) | Engine start function | Refer to REGISTRATION [08/2020 - 09/2022] | |
| Code registration (Smart access system with push-button start (for Start Function, Gasoline Model) |
|
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| Replacement of ECM (If transaxle compensation code read from ECM) |
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Refer to INITIALIZATION [08/2020 - ]
for UB80F Initialization Refer to REGISTRATION [08/2020 - ] for UB80F Registration |
| Replacement of ECM (If transaxle compensation code not read from ECM) |
|
*1: When performing learning using the Techstream.
*2: Not necessary when ECM replaced with new one.
NOTE:
- After the engine switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the engine switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) battery terminal. (for Audio and Visual System)
- After the engine switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the engine switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) 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 [08/2020 - ]