- Wireless Door Lock Control System (for Gasoline Model with Smart Key System)
- Smart Key System (for Gasoline Model, Entry Function)
- Smart Key System (for Gasoline Model, Start Function)
- Steering lock function*1
| Last Modified: 08-22-2025 | 6.11:8.1.0 | Doc ID: RM0000003TPDFBA |
| Model Year Start: 2026 | Model: GR Corolla | Prod Date Range: [08/2025 - ] |
| Title: G16E-GTS (ENGINE CONTROL): ECM: REMOVAL; 2026 MY GR Corolla [08/2025 - ] | ||
REMOVAL
CAUTION / NOTICE / HINT
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 |
|---|---|---|---|
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*1: w/ Steering Lock Function
*2: Not necessary when ECM replaced with new one. *3: If transaxle compensation code read from ECM *4: If transaxle compensation code not read from ECM |
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Replacement of ECM |
Vehicle Identification Number (VIN) registration |
MIL comes on |
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ECU configuration |
- |
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Update ECU security key |
Vehicle Control History (RoB) are stored |
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Heavy Knock History |
- |
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ECU communication ID registration (Immobiliser system) |
Engine start function |
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Code registration (Smart Key System (for Gasoline Model, Start Function)) |
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for UC80F
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Initialization:
Registration:
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NOTICE:
If the ECM has been struck or dropped, replace it.
HINT:
When the cable is disconnected / reconnected to the battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.
Learning completes when vehicle is driven
|
Effect/Inoperative Function when Necessary Procedure not Performed |
Necessary Procedure |
Link |
|---|---|---|
|
Front Camera System |
Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more. |
|
Learning completes when vehicle is operated normally
|
Effect/Inoperative Function when Necessary Procedure not Performed |
Necessary Procedure |
Link |
|---|---|---|
|
Power Door Lock Control System
|
Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch. |
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PROCEDURE
1. PRECAUTION
NOTICE:
After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal.
Click here
![2023 - 2026 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - ]; SETUP: WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL: BEFORE DISCONNECTING BATTERY](/t3Portal/stylegraphics/info.gif)
2. REMOVE DECK BOARD ASSEMBLY
Click here
3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
Click here
4. REMOVE NO. 4 INLET AIR CLEANER
Click here
5. REMOVE RADIATOR SUPPORT OPENING COVER
Click here
6. REMOVE INLET NO. 1 AIR CLEANER
Click here
7. REMOVE AIR CLEANER WITH AIR CLEANER HOSE
Click here
8. REMOVE ECM
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(a) Disengage the 4 clamps. |
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(b) Rotate the 3 lock levers while pushing the locks on the levers, and disconnect the 3 ECM connectors.
NOTICE:
After disconnecting the ECM connectors, make sure that dirt, water or other foreign matter does not contact the connecting parts of the ECM connectors.
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(c) Remove the bolt, nut and ECM. NOTICE: If the ECM has been struck or dropped, replace it. |
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9. REMOVE WIRE HARNESS CLAMP BRACKET
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(a) Remove the bolt and wire harness clamp bracket from the ECM. |
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10. REMOVE NO. 1 ECM BRACKET
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(a) Remove the screw and No. 1 ECM bracket from the ECM. |
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11. REMOVE NO. 2 ECM BRACKET
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(a) Remove the screw and No. 2 ECM bracket from the ECM. |
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