A25A-FKS (ENGINE CONTROL): ECM: REMOVAL; 2023 - 2024 MY Camry [08/2022

Last Modified: 11-20-2023	6.11:8.1.0	Doc ID: RM100000002625Z
Model Year Start: 2023	Model: Camry	Prod Date Range: [08/2022 - ]
Title: A25A-FKS (ENGINE CONTROL): ECM: REMOVAL; 2023 - 2024 MY Camry [08/2022 - ]

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
Battery terminal is disconnected/reconnected	Perform steering sensor zero point calibration	Lane Tracing Assist System
	Perform steering sensor zero point calibration	Pre-collision System
	Memorize steering angle neutral point	Parking Assist Monitor System
	Memorize steering angle neutral point	Panoramic View Monitor System
Replacement of ECM	Vehicle Identification Number (VIN) registration	MIL comes on
Replacement of ECM	ECU communication ID registration (Immobiliser system)	Engine start function	1 2
Replacement of ECM (If possible, read the transaxle compensation code from the previous ECM)	Reset memory*3 Transfer transaxle compensation code Perform road test to allow ECM to learn	Large shift shock Deterioration of fuel efficiency	for UB80E Initialization for UB80E Registration for UB80F Initialization for UB80F Registration
Replacement of ECM (If impossible, read the transaxle compensation code from the previous ECM)	Reset memory*3 Reset transaxle compensation code Perform road test to allow ECM to learn	Large shift shock Deterioration of fuel efficiency
Replacement of ECM*1	Code registration	Wireless door lock control system Smart key system (for Entry Function) Smart key system (for Start Function)
Replacement of ECM*2	Code registration	Wireless door lock control system Engine start

*1: w/ Smart Key System
*2: w/o Smart Key System
*3: When the ECM is replaced with a new one, reset memory is unnecessary.

NOTICE:

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
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If the ECM has been struck or dropped, replace it.
Perform Vehicle Identification Number (VIN) registration when replacing the ECM.
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PROCEDURE

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

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2. REMOVE COOL AIR INTAKE DUCT SEAL

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3. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY

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4. REMOVE INLET AIR CLEANER ASSEMBLY

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5. REMOVE AIR CLEANER ASSEMBLY WITH AIR CLEANER HOSE

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6. REMOVE ECM

(a) Rotate the 3 levers while pushing the locks, 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.

(b) Remove the 2 bolts, nut and ECM.

NOTICE:

If the ECM has been struck or dropped, replace it.

7. REMOVE NO. 1 ECM BRACKET

(a) Remove the 2 screws and No. 1 ECM bracket from the ECM.

8. REMOVE NO. 2 ECM BRACKET

(a) Remove the 2 screws and No. 2 ECM bracket from the ECM.