Theft Deterrent Keyless Entry. Engine Immobiliser System (W/ Smart Key System) Registration

Vehicle Interior. Corolla. Zre142 Aze141

Theft Deterrent Keyless Entry. Corolla. Zre142 Aze141

DESCRIPTION OF CODE REGISTRATION
PART REPLACEMENT AND KEY REGISTRATION
KEY REGISTRATION

Engine Immobiliser System (W/ Smart Key System) -- Registration

1. DESCRIPTION OF CODE REGISTRATION

HINT:

The ID codes are the same as recognition codes for the wireless transmitter and the engine immobiliser function. Registering an ID code enables the smart key system, the wireless door lock control function and the engine immobiliser function to be operated.
Code registration is necessary when the certification ECU (smart key ECU assembly), ID code box (immobiliser code ECU), steering lock ECU, or key is replaced with a new one.

Vehicles with the smart key system do not have a key slot. Therefore, hold the key close to the engine switch to register the key, as shown in the illustration.

2. PART REPLACEMENT AND KEY REGISTRATION

The following table shows ECU replacement and key registration procedures for cases in which a malfunctioning ECU has been identified through the troubleshooting of the smart key system.

HINT:

The following procedures can be performed:

New key ID registration
Additional key ID registration
Key ID erasure
All key ID erasure
ECU code registration

If the customer has not brought all the registered keys, replacement of the ID code box (immobiliser code ECU) is also required.
A maximum of 4 keys can be registered.

Part to be Replaced	Condition		Procedure	Reference
Certification ECU (Smart key ECU assembly)	Customer has brought all keys		1. Replace certification ECU (smart key ECU assembly)	-
	Customer has brought all keys		2. Reregister all keys (New key ID registration)	PROCEDURE "B"
	Some keys are lost	Key ID codes can be registered and erased	1. Erase key codes (Key ID erasure)	PROCEDURE "D"
			2. Perform additional key registration procedure (Additional key ID registration)	PROCEDURE "C"
			3. Replace certification ECU (smart key ECU assembly)	-
			4. Reregister all keys (New key ID registration) HINT: If some keys are not registered during the above steps, they will be disabled because they cannot be registered later.	PROCEDURE "B"
		Key ID codes cannot be either registered or erased	1. Replace certification ECU (smart key ECU assembly)	-
			2. Replace ID code box (immobiliser code ECU)	-
			3. Reregister all keys (New key ID registration) HINT: If key codes cannot be erased or additional keys cannot be registered due to a malfunction in the certification ECU (smart key ECU assembly), replace the ID code box (immobiliser code ECU) and certification ECU (smart key ECU assembly). If some keys are not registered during the above steps, they will be disabled because they cannot be registered later.	PROCEDURE "A"
			4. Register ECU communication ID	PROCEDURE "G"
Certification ECU (Smart key ECU assembly)	All keys are lost		1. Replace certification ECU (smart key ECU assembly)	-
			2. Replace ID code box (immobiliser code ECU)	-
			3. Reregister all keys (New key ID registration) HINT: If key codes cannot be erased or additional keys cannot be registered due to a malfunction in the certification ECU (smart key ECU assembly), replace the ID code box (immobiliser code ECU) and certification ECU (smart key ECU assembly). If some keys are not registered during the above steps, they will be disabled because they cannot be registered later.	PROCEDURE "A"
			4. Register ECU communication ID	PROCEDURE "G"
ID code box (Immobiliser code ECU)	Customer has brought at least 1 key		1. Replace ID code box (immobiliser code ECU)	-
			2. Register recognition codes in ECUs (ECU code registration)	PROCEDURE "F"
			3. Register ECU communication ID	PROCEDURE "G"
	All keys are lost		1. Replace ID code box (immobiliser code ECU)	-
			2. Replace certification ECU (smart key ECU assembly)	-
			3. Reregister all keys (New key ID registration) HINT: If some keys are not registered during the above steps, they will be disabled because they cannot be registered later.	PROCEDURE "A"
			4. Register ECU communication ID	PROCEDURE "G"
Steering lock ECU	Customer has brought at least 1 key		1. Replace steering lock ECU	-
	Customer has brought at least 1 key		2. Register recognition codes in ECUs (ECU code registration)	PROCEDURE "F"
	All keys are lost		1. Replace steering lock ECU	-
			2. Replace certification ECU (smart key ECU assembly)	-
			3. Replace ID code box (immobiliser code ECU)	-
			4. Reregister all keys (New key ID registration) HINT: If some keys are not registered during the above steps, they will be disabled because they cannot be registered later.	PROCEDURE "A"
			5. Register ECU communication ID	PROCEDURE "G"
Main body ECU (Instrument panel junction block)	No condition required		Replace main body ECU (instrument panel junction block)	-
ECM	No condition required		1. Replace ECM	-
ECM	No condition required		2. Register ECU communication ID	PROCEDURE "H"
Key (for replacement)	Customer has brought at least 1 key		1. Using remaining key, erase lost key code (Key ID erasure)	PROCEDURE "D"
	Customer has brought at least 1 key		2. Register additional keys as necessary (Additional key ID registration)	PROCEDURE "C"
	All keys are lost		1. Erase all key codes (All key ID erasure)	PROCEDURE "E"
	All keys are lost		2. Register all keys (New key ID registration) HINT: If the customer brings lost keys at a later date, they can be registered using the additional key ID registration function.	PROCEDURE "A"
Key (for addition)	Customer has brought at least 1 key HINT: When adding keys (Additional registration)		1. Register additional keys as necessary (Additional key ID registration)	PROCEDURE "C"

3. KEY REGISTRATION

PROCEDURE "A"
New key ID registration (when replacing the certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU), or when replacing the certification ECU (smart key ECU assembly), ID code box (immobiliser code ECU) and steering lock ECU)

Process	Procedure
1. Start of registration	Connect the Techstream to DLC3 Turn the engine switch on (IG) Enter the following menus: Body Electrical / Smart Key / Utility / Smart Code Registration HINT: The engine switch cannot be turned on (IG) more than 10 times. After connecting the Techstream, turn the Techstream on while turning the driver's side door courtesy light switch on and off repeatedly at 1.5-second intervals or less to continue key registration procedure.
2. Confirmation of ECU code	Perform operation according to prompts on the Techstream screen HINT: Mode is automatically selected by the Techstream (new registration mode or add mode).
3. Verification of unregistered key*1	Hold the unregistered key close to the engine switch (For details, refer to "Description of Code Registration") Confirm that the wireless door lock buzzer sounds once (short beep) Place the unregistered key on the driver's seat Confirm that the wireless door lock buzzer sounds once (short beep)
4. Registration of ID code	Perform operation according to prompts on the Techstream screen
5. End of registration	Finish new key ID code registration

*1: Repeat this process for each key which is to be registered for the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys has not been finished within the specified time, perform the registration procedures again from process 1. Make sure that only 1 key is in the cabin during the registration procedures. If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration.

PROCEDURE "B"
New key ID registration (when replacing the certification ECU (smart key ECU assembly))

Process	Procedure
1. Start of registration	Connect the Techstream to DLC3 Turn the engine switch on (IG) Enter the following menus: Body Electrical / Smart Key / Utility / Smart Code Registration HINT: The engine switch cannot be turned on (IG) more than 10 times. After connecting the Techstream, turn the Techstream on while turning the driver's side door courtesy light switch on and off repeatedly at 1.5-second intervals or less to continue key registration procedure.
2. Confirmation of ECU code	Perform operation according to prompts on the Techstream screen HINT: Mode is automatically selected by the Techstream (new registration mode or add mode).
3. Confirmation of all registered keys*1	Hold the registered key close to the engine switch (For details, refer to "Description of Code Registration") Confirm that wireless door lock buzzer sounds once (short beep)
4. Confirmation of ECU code	Perform operation according to prompts on the Techstream screen
5. Verification of unregistered key*2	Hold the unregistered key close to the engine switch (For details, refer to "Description of Code Registration") Confirm that wireless door lock buzzer sounds once (short beep) Place the unregistered key on the driver's seat Confirm that the wireless door lock buzzer sounds once (short beep)
5. Registration of ID code	Perform operation according to prompts on the Techstream screen
6. End of registration	Finish new key ID code registration

*1: Repeat this process for each key registered for the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys has not been finished within the specified time, perform the registration procedures again from process 1. If the key confirmation procedure for a key is performed, the security indicator light comes on and remains on until all the keys are confirmed.

*2: Repeat this process for each key which is to be registered for the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys is not finished within the specified time, perform the registration procedures again from 1. Make sure that only 1 key is in the cabin during the registration procedures. If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration.

PROCEDURE "C"
Additional key ID registration

Process	Procedure
1. Start of registration	Connect the Techstream to DLC3 Turn the engine switch on (IG) Enter the following menus: Body Electrical / Smart Key / Utility / Smart Code Registration
2. Confirmation of registered key*1	Perform operation according to prompts on the Techstream screen HINT: Mode is automatically selected by the Techstream (new registration mode or add mode) Hold the registered key close to the engine switch (For details, refer to "Description of Code Registration") Confirm that the wireless door lock buzzer sounds once (short beep)
3. Confirmation of ECU code	Perform operation according to prompts on the Techstream screen
4. Verification of unregistered key*2	Hold the unregistered key close to the engine switch (For details, refer to "Description of Code Registration") Confirm that the wireless door lock buzzer sounds once (short beep) Place the unregistered key on driver's seat Confirm that the wireless door lock buzzer sounds once (short beep)
5. Registration of ID code	Perform operation according to prompts on the Techstream screen
6. End of registration	Finish additional key ID code registration

*1: Perform this process for one of the keys registered for the vehicle. Finish the procedure within 30 seconds. If the procedure has not been finished within the specified time, perform the registration procedures again from process 1.

*2: Repeat this process for each key which is to be registered for the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys is not finished within the specified time, perform the registration procedures again from 1. Make sure that only 1 key is in the cabin during the registration procedures. If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration.

PROCEDURE "D"
Key ID erasure

HINT:

Erase all registered key codes except one.

Process	Procedure
1. Start of erasure	Connect the Techstream to DLC3 Turn the engine switch on (IG) Enter the following menus: Body Electrical / Smart Key / Utility / Smart Code Erasure
2. Confirmation of registered key*1 HINT: Select the key that will not be erased.	Perform operation according to prompts on the Techstream screen Hold the registered key close to engine switch (For details, refer to "Description of Code Registration") Confirm that the wireless door lock buzzer sounds once (short beep)
3. Confirmation of ECU code	Perform operation according to prompts on the Techstream screen
4. Erasure of ID code	Perform operation according to prompts on the Techstream screen
5. End of erasure	Finish key ID code erasure

*1: Perform this process for one of the keys registered for the vehicle. Finish the procedure within 30 seconds. If the procedure has not been finished within the specified time, perform the erasure procedures again from process 1.

PROCEDURE "E"
All key ID erasure

HINT:

All the key codes registered in the vehicle are erased.

Process	Procedure
1. Start of erasure	Connect the Techstream to DLC3 Turn the engine switch on (IG) Turn the Techstream on while turning driver side door courtesy light switch on and off repeatedly at 1.5-second intervals or less Enter the following menus: Body Electrical / Smart Key / Utility / Smart Code Erasure
2. Confirmation of ECU code	Perform operation according to prompts on the Techstream screen
3. Erasure of ID code	Perform operation according to prompts on the Techstream screen
4. End of erasure	Finish key ID code erasure

PROCEDURE "F"
ECU code registration

Process	Procedure
1. Start of registration	Connect the Techstream to DLC3 Turn the engine switch on (IG) Enter the following menus: Body Electrical / Smart Key / Utility / ECU Communication ID Registration
2. Confirmation of registered key*1	Hold the registered key close to engine switch (For details, refer to "Description of Code Registration") Confirm that the wireless door lock buzzer sounds once (short beep)
3. Registration of ECU code	Perform operation according to prompts on the Techstream screen
4. End of registration	Finish ECU code registration

*1: Perform this process for one of the keys registered for the vehicle. Finish the procedure within 30 seconds. If the procedure has not been finished within the specified time, perform the erasure procedures again from process 1.

PROCEDURE "G"
ECU communication ID registration
NOTICE:
1. The ECU communication ID should be registered when the ID code box (immobiliser code ECU) is replaced in order to match these ECU communication IDs.
2. The engine cannot be started unless the ECU communication IDs match.
3. After the registration, pressing the engine switch may not start the engine on the first try. If so, press the engine switch again.
4. Clear DTC B2799 (code for ECM's immobiliser communication error) by either of the following:
  - Use the Techstream.
  - Disconnect the battery for 30 seconds.
1. Using SST, connect terminals TC and CG of the DLC3.
  SST
  09843-18040
2. Turn the engine switch on (IG) and leave it as is for 30 minutes.
  HINT:
  Do not start the engine.
3. Turn the engine switch off and disconnect terminals TC and CG.
4. Check that the engine starts and stays running for more than 3 seconds.

PROCEDURE "H"
ECU communication ID registration

NOTICE:

The ECU communication ID should be registered when the ECM is replaced in order to match the ECU communication IDs.

Procedure	Security Indicator Light Condition
1. Start	OFF
2. Hold an already registered key close to the engine switch and turn the engine switch on (IG) with the brake pedal depressed
3. Check that the engine starts and stays running for more than 3 seconds
4. Next
5. End