Caution / Notice / Hint
WARNING: This page is about a different car, the 2025 Toyota Corolla Cross, 2024 Toyota Corolla Cross, and 2023 Toyota Corolla Cross. However, it is still accessible from the selected car via links, so may be relevant.
COMPONENTS (REMOVAL)
| Procedure | Part Name Code | ||||
|---|---|---|---|---|---|
| 1 | PRECAUTION | - | See step 1 | - | - |
| 2 | CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL | - | - | - | - |
| 3 | ENGINE WIRE | 82121 | See step 3 | - | - |
| 4 | ECM | 89661 | See step 4 | - | - |
| 5 | NO. 2 ECM BRACKET | 89668 | - | - | - |
| 6 | NO. 1 ECM BRACKET | 89667E | - | - | - |
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 |
|---|---|---|---|
| Replacement of ECM | Update ECU security key | Vehicle Control History (RoB) are stored | Refer to UPDATE ECU SECURITY KEY [11/2022 - ] |
| Perform Vehicle Identification Number (VIN) or frame number registration | DTC is output | Refer to REGISTRATION [11/2022 - ] | |
| ECU configuration | - | Refer to ECU CONFIGURATION [11/2022 - ] |
NOTE:
If both left and right front flexible hoses are disconnected at the same time, be sure to place an identification mark on each hose to indicate its installation position.
HINT:
- When the cable is disconnected/reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used. (for HEV Model)
- Learning completes when vehicle is driven
Effect/Inoperative Function When Necessary Procedures are not Performed Necessary Procedures Link Front Camera System Drive the vehicle straight ahead at 15 km/h(10 mph) or more for 1 second or more. Refer to INITIALIZATION [11/2022 - ] - Learning completes when vehicle is operated normally
Effect/Inoperative Function When Necessary Procedures are not Performed Necessary Procedures Link Power door lock control system - Back door opener
Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch. Refer to INITIALIZATION [11/2022 - ] Power back door system Fully close the back door by hand.
HINT:
Initialization is not necessary if the above procedures are performed while the back door is closed.Refer to INITIALIZATION [09/2021 - ] Air conditioning system After the ignition switch is turned to ON, the servo motor standard position is recognized. -
- Learning completes when vehicle is driven