Caution / Notice / Hint
WARNING: This page is about a different car, the 2025 Lexus RX 450h+, 2025 Lexus RX 350h, 2024 Lexus RX 450h+, 2024 Lexus RX 350h, and 2023 Lexus RX 350h. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- After replacing the ECM, make sure to perform vehicle identification number (VIN) registration, ECU configuration and update ECU security key.
- After performing the vehicle identification number (VIN) registration, ECU configuration procedure and update ECU security key procedure, make sure to perform the initialization procedure for when the cable has been disconnected and reconnected to the negative (-) auxiliary battery terminal.
COMPONENTS (INSTALLATION)
| Callout - Procedure | Part Name Code | ||||
|---|---|---|---|---|---|
| 1 | NO. 2 ECM BRACKET | 89668 | - | - | - |
| 2 | NO. 1 ECM BRACKET | 89667E | - | - | - |
| 3 | ECM | 89661 | See step 3 | - | - |
| N.m (kgf/cm, ft.lbf): Specified torque | - | - |
| Procedure | Part Name Code | ||||
|---|---|---|---|---|---|
| 4 | NEGATIVE AUXILIARY BATTERY TERMINAL | - | - | - | - |
| 5 | BATTERY SERVICE COVER PLATE | 58491E | - | - | - |
| 6 | VEHICLE IDENTIFICATION NUMBER (VIN) REGISTRATION | - | - | - | See step 6 |
| 7 | ECU CONFIGURATION | - | - | - | See step 7 |
| 8 | UPDATE ECU SECURITY KEY | - | - | - | See step 8 |
| 9 | INITIALIZATION AFTER RECONNECTING AUXILIARY BATTERY TERMINAL | - | - | - | See step 9 |