Toyota Prius: Id Code Box

Toyota Prius (XW60) 2023-2025 Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Id Code Box

Removal
Installation

Removal

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 ID code box (immobilizer code ECU) removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
1: Even when not replacing the part, it is necessary to perform the specified necessary procedures after installation. 2: for PHEV Model
ID code box (immobilizer code ECU)	Code registration	Wireless Door Lock Control System Smart Key System (for Entry function) Smart Key System (for Start function) Hybrid control system cannot be started Digital Key System Remote Control Function
w/ Occupant Classification System: Front passenger seat*1	Zero point calibration (Occupant classification system)	Occupant Classification System Passenger airbag ON/OFF indicator Airbag System (Front passenger side) Seat Belt Warning System (Front passenger)
No. 1 air conditioning radiator damper servo sub-assembly No. 1 blower damper servo sub-assembly Cooling electric expansion valve (cooler expansion valve)2 Heating electric expansion valve (magnet valve assembly)2	Servo motor initialization (Air Conditioning System) Expansion valve initialization (Air Conditioning System)*2	DTCs are stored	for HEV Model: for PHEV Model:

NOTICE:

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal.

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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.

Items for which learning is completed by driving the Toyota Prius vehicle

Effect/Inoperative Function When Necessary Procedures are not Performed	Necessary Procedures	Link
Front Camera System	Drive the Toyota Prius vehicle straight ahead at 35 km/h (22 mph) or more for 5 second or more.

Items for which learning is completed by operating the vehicle normally

Effect/Inoperative Function When Necessary Procedures are not Performed	Necessary Procedures	Link
1: w/o Power Back Door System 2: w/ Power Back Door System
Power Door Lock Control System*1 Back door opener	Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.
Power Back Door System*2	Reset back door close position
Air Conditioning System	for HEV Model: After the ignition switch is turned to ON, the servo motor standard position is recognized. for PHEV Model: After the ignition switch is turned to ON, the servo motor and expansion valve standard position is recognized.	-

CAUTION / NOTICE / HINT

COMPONENTS (REMOVAL)

Procedure		Part Name Code
1	PRECAUTION	-		-	-
2	AIR CONDITIONER UNIT ASSEMBLY	-		-	-
3	ID CODE BOX (IMMOBILISER CODE ECU)	89784	-	-	-

PROCEDURE

1. PRECAUTION

CAUTION:

Be sure to read precaution thoroughly before servicing.

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NOTICE:

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal.

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2. REMOVE AIR CONDITIONER UNIT ASSEMBLY

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3. REMOVE ID CODE BOX (IMMOBILISER CODE ECU)

Installation

INSTALLATION

CAUTION / NOTICE / HINT

COMPONENTS (INSTALLATION)

Procedure		Part Name Code
1	ID CODE BOX (IMMOBILISER CODE ECU)	89784	-	-	-
2	AIR CONDITIONER UNIT ASSEMBLY	-		-	-
3	PERFORM CODE REGISTRATION	-	-	-
4	INITIALIZATION AFTER RECONNECTING AUXILIARY BATTERY TERMINAL	-	-	-

PROCEDURE

1. INSTALL ID CODE BOX (IMMOBILISER CODE ECU)

2. INSTALL AIR CONDITIONER UNIT ASSEMBLY

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3. PERFORM CODE REGISTRATION

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4. INITIALIZATION AFTER RECONNECTING AUXILIARY BATTERY TERMINAL

HINT:

When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

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