Removal [10/2018 - 07/2022]: Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus UX 250h, 2023 Lexus UX 250h, 2022 Lexus UX 250h, 2021 Lexus UX 250h, and 2020 Lexus UX 250h. However, it is still accessible from the selected car via links, so may be relevant.

PRECAUTION
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 [10/2018 - 07/2022]
- Before replacing the hybrid vehicle control ECU, refer to Service Bulletin.
DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL
Refer to PROCEDURE - Step 5

NOTE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

Refer to INITIALIZATION [10/2018 - 07/2022]
REMOVE ECU INTEGRATION BOX RH (for LHD)
Refer to REMOVAL [10/2018 - 07/2022]
REMOVE ECU INTEGRATION BOX LH (for RHD)
Refer to REMOVAL [10/2018 - 07/2022]

REMOVE HYBRID VEHICLE CONTROL ECU (for LHD)

Disengage the 2 claws and remove the hybrid vehicle control ECU from the ECU integration box RH.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NOTE:

If the ECU integration box RH is deformed or damaged, replace it.
Do not bend the 2 claws more than necessary.

REMOVE HYBRID VEHICLE CONTROL ECU (for RHD)

Disengage the 2 claws and remove the hybrid vehicle control ECU from the ECU integration box LH.

NOTE:

If the ECU integration box LH is deformed or damaged, replace it.
Do not bend the 2 claws more than necessary.