Caution / Notice / Hint
WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.
COMPONENTS (INSTALLATION)
| Callout - Procedure | Part Name Code | ||||
|---|---|---|---|---|---|
| 1 | HYBRID VEHICLE CONTROL ECU | 89981 | - | - | - |
| 2 | ECU INTEGRATION BOX LH | 82878 | - | - | - |
| Callout - Procedure | Part Name Code | ||||
|---|---|---|---|---|---|
| 3 | NEGATIVE AUXILIARY BATTERY TERMINAL | - | - | - | - |
| 4 | BATTERY SERVICE COVER PLATE | 58491E | - | - | - |
| 5 | UPDATE ECU SECURITY KEY | - | - | - | See step 5 |
| 6 | PERFORM INITIALIZATION | - | - | - | See step 6 |
| 7 | INITIALIZATION AFTER RECONNECTING AUXILIARY BATTERY TERMINAL | - | - | - | See step 7 |
NOTE:
- After replacing the hybrid vehicle control ECU, make sure to perform update ECU security key.
- After performing the 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.