HOW TO REGISTER ENCRYPTED CODE

Because registering the encrypted codes is done after all previously-registered codes have been erased, you should keep all of the ignition keys that have already been registered accessible.

If the ignition key, Immobilizer-ECU, engine-ECU <M/T> or engine-A/T-ECU <A/T> is replaced or an ignition key is added, encrypted codes of all the ignition keys must be registered. (A maximum of eight different ignition key can be registered.) Moreover, when the immobilizer-ECU has been replaced, you will need to use MUT-II/III to register the immobilizer-ECU and input the vehicle secret code and to register the password (secret code) that the owner specifies into the immobilizer-ECU. If an attempt is made to start the engine with an unregistered ignition key, cranking occurs, but fuel supply is cut off to disable the engine. In approximately.

NOTE: Engine-ECU <M/T> or engine-A/T-ECU <A/T> has an encrypted code for immobilizer-ECU, and the encrypted code is registered in the immobilizer-ECU and ignition key.

POINTS TO NOTE DURING OPERATION

If none of the functions can be used, check the diagnosis codes, and after carrying out any necessary repairs, repeat the operation. If an incorrect password is input ten times in a row, the immobilizer-ECU judges that an unauthorized operation is being attempted. Start-prevention mode will be set, and engine operation will stop and all special functions will be disabled. If the ignition switch is turned to "ON" position, "Unauthorized operation, start-prevention mode" will be cancelled.

KEY ID (ENCRYPTED CODE) REGISTRATION <MUT-II>

All ignition keys can be registered with MUT-II. Additional ignition keys can be registered with MUT-II.

Registration with the MUT-II

CAUTION

To prevent damage to MUT-II, always turn the ignition switch to "LOCK" (OFF) position before connecting or disconnecting MUT-II.

NOTE:

Using the key ID register function will cause all key IDs that have been previously registered in the immobilizer-ECU to be erased. All keys need to be registered. Those which have been registered before should be on hand before using this function.

If registering more than one key, do not disconnect MUT-II halfway through the registration process.

After registering key IDs, check that the engine can be started using all of the keys that have been registered. If the engine will not start, refer to Immobilizer System Diagnosis .

Connect MUT-II to diagnosis connector (16- pin).

Turn the ignition switch to "ON" position.

At "System Select," press "YES"

Select "Immobilizer," press "YES".

Select "Special Func", press "YES". If diagnosis code No.11 exists, "Can't execute" will be displayed. Check for diagnosis code No.11 (Refer to .)

Select "key ID register", press "YES".

Input the password. Use the "UP" and "DOWN" keys to change the current password digit to a value between 0 and 9. Use the "LEFT" and "RIGHT" keys to move to a different password digit. Press the "YES" key to accept the password. If an incorrect password is input five times in a row, this screen is displayed and the immobilizer-ECU switches to unauthorized operation, start-prevention mode.

NOTE: Four separate digits must be input to make up the password.

Press the "YES" key to start key ID registration.

This will be displayed when the key ID registration is successful. If an error occurs during key ID registration, the message "Can't execute" will be displayed. If the key has already been registered, "Key ID has been registered" will be displayed.

The number of keys currently registered will be displayed. To register an additional key, replace the ignition key with the next key to be registered within five seconds and then press the "YES" key. Key ID registration screen will be displayed, then register another key. If key ID registration is complete, press the "NO" key.

NOTE: A maximum of eight different keys can be registered.

This completes the registration operation. Turn the ignition switch "LOCK" (OFF) and leave it off for approximately ten seconds.

Check that the engine can be started with each of the ignition keys.

Check that the immobilizer system diagnosis code and MPI system diagnosis code did not set.

Turn the ignition switch to "LOCK" (OFF) position.

Disconnect MUT-II.

Registration of additional keys with the MUT-II

Additional key(s) can be registered with the MUT-II while keeping all existing key data.

CAUTION

To prevent damage to MUT-II, always turn the ignition switch to "LOCK" (OFF) position before connecting or disconnecting MUT-II.

NOTE: To register additional keys with the MUT-II, no registered keys must be lost.

Connect MUT-II (MB991502) to the 16-pin diagnosis connector.

Turn the ignition switch to "ON" position.

At "System Select," press "YES"

Select "Immobilizer," press "YES".

Select "Special Func", press "YES". If diagnosis code No.11 exists, "Can't execute" will be displayed. Check for diagnosis code No.11 (Refer to .)

Select "Add key ID reg", press "YES".

Press the "YES" key to start key ID registration.

This will be displayed when the add key ID registration is successful. If an error occurs during key ID registration, the message "Can't execute" will be displayed. If the key has already been registered, "Key ID has been registered" will be displayed.

The number of keys currently registered will be displayed. To register an additional key, replace the ignition key with the next key to be registered within five seconds and then press the "YES" key. Key ID registration screen will be displayed, then register another key.

NOTE: A maximum of eight different keys can be registered.

If key ID registration is complete, press the "NO" key.

This completes the registration operation. Turn the ignition switch "LOCK" (OFF) and leave it off for approximately ten seconds.

Check that the engine can be started with each of the ignition keys.

Check that the immobilizer system diagnosis code and MPI system diagnosis code did not set.

Turn the ignition switch to "LOCK" (OFF) position.

Disconnect MUT-II.

KEY ID (ENCRYPTED CODE) REGISTRATION <MUT-III>

All ignition keys can be registered with MUT-III. Additional ignition keys can be registered with MUT-III.

Registration with the MUT-III

CAUTION

To prevent damage to MUT-III, always turn the ignition switch to "LOCK" (OFF) position before connecting or disconnecting MUT-III.

NOTE:

Before registration, check that no diagnosis code is set. If a diagnosis code is set, resolve the problem beforehand.

Using the key ID register function will cause all key IDs that have been previously registered in the immobilizer-ECU to be erased. All keys need to be registered. Those which have been registered before should be on hand before using this function.

If registering more than one key, do not disconnect MUT-III halfway through the registration process.

After registering key IDs, check that the engine can be started using all of the keys that have been registered. If the engine will not start, refer to Immobilizer System Diagnosis .

Connect the MUT-III to the diagnosis connector (16-pin).

Turn the ignition switch to "ON" position.

Select "System select" from the start-up screen.

Choose "IMMOBILIZER" from the "POWER TRAIN" tab.

Choose "Special Function" from "IMMOBILIZER" screen.

Choose "Key registration" from "Special Function" screen.

Enter the vehicle’s password (secret code) on the "Key registration" screen, and then click the check mark icon. Follow the prompts on the screen to insert key(s) into the ignition switch to begin key registration.

If the key ID was registered successfully, "Progress" indication will turn active (gray). Then the registration process completes. If the key ID failed to be registered, "In-Complete" indication will turn active (gray).

The number of keys currently registered will be displayed. To register an additional key, replace the ignition key with the next key to be registered within five seconds. Key ID registration screen will be displayed, then register another key.

NOTE: A maximum of eight different keys can be registered.

This completes the registration operation. Turn the ignition switch "LOCK" (OFF) and leave it off for approximately ten seconds.

Check that the engine can be started with each of the ignition keys.

Check that the immobilizer system diagnosis code and MPI system diagnosis code did not set.

If not diagnosis code is shown, terminate the MUT-III.

Turn the ignition switch to "LOCK" (OFF) position.

Disconnect MUT-III.

Registration of additional keys with the MUT-III

Additional key(s) can be registered with the MUT-III while keeping all existing key data.

CAUTION

To prevent damage to MUT-III, always turn the ignition switch to "LOCK" (OFF) position before connecting or disconnecting MUT-III.

NOTE: To register additional keys with the MUT-III, no registered keys must be lost.

Connect MUT-III to the 16-pin diagnosis connector.

Turn the ignition switch to "ON" position.

NOTE: Before registration, check that no diagnosis code is set. If a diagnosis code is set, resolve the problem beforehand.

Carry out steps 3 to 6 of the sub-section "Registration with MUT-III."

Choose "Transponder ID addition" from "Special Function" screen.

Enter the vehicles password (secret code) on the "Transponder ID addition" screen, and then click the check mark icon.

If an additional registration is made successfully, the screen will ask if another key is registered or not. If the third ignition key is registered, remove the key, which has been registered. Then insert the third key within five seconds, and then turn it to the ON position.

Register the additional ignition key according to step 6 above. The number of the registered ignition keys are shown on "The number of registered key" screen.

NOTE: A maximum of eight different keys can be registered.

This completes the registration operation. Turn the ignition switch "LOCK" (OFF) and leave it off for approximately ten seconds.

Check that the engine can be started with each of the ignition keys.

Check that the immobilizer system diagnosis code and MPI system diagnosis code did not set.

If not diagnosis code is shown, terminate the MUT-III.

Turn the ignition switch to "LOCK" (OFF) position.

Disconnect MUT-III.

Registration of additional key(s) without using the MUT-III

If the MUT-III is not available, new key(s) can be registered by operating two keys which have been registered to the vehicle (A maximum of eight keys can be registered to one vehicle). Follow the procedure below to register new key(s) to the vehicle.

NOTE: The registered key is the key that allows you to start the engine.

Turn "ON" the ignition switch by using the first registered key (key A), and wait for five seconds.

Remove the first registered key (key A).

Insert the second registered ignition key (key B), and turn it to the ON position.

The immobilizer-ECU identifies the new key to accept or reject it, and operates the immobilizer indicator (See the table below).

If a new ignition key is registered further, repeat steps 1 to 7 above.

A maximum of eight ignition keys can be registered to one vehicle (If you attempt to register the ninth key, the immobilizer-ECU rejects the key). If any of the following conditions are satisfied, the additional key registration mode will terminate:

The ignition switch has been on for more than 30 seconds.

After the ignition key has been turned to the "LOCK" (OFF), the engine control relay is turned off.

The MUT-III has started communicating with vehicle systems.

After the registration mode has terminated, the additionally registered key(s) should allow you to start the engine.


	HOW TO REGISTER ENCRYPTED CODE
	CAUTION Because registering the encrypted codes is done after all previously-registered codes have been erased, you should keep all of the ignition keys that have already been registered accessible. If the ignition key, Immobilizer-ECU, engine-ECU <M/T> or engine-A/T-ECU <A/T> is replaced or an ignition key is added, encrypted codes of all the ignition keys must be registered. (A maximum of eight different ignition key can be registered.) Moreover, when the immobilizer-ECU has been replaced, you will need to use MUT-II/III to register the immobilizer-ECU and input the vehicle secret code and to register the password (secret code) that the owner specifies into the immobilizer-ECU. If an attempt is made to start the engine with an unregistered ignition key, cranking occurs, but fuel supply is cut off to disable the engine. In approximately. NOTE: Engine-ECU <M/T> or engine-A/T-ECU <A/T> has an encrypted code for immobilizer-ECU, and the encrypted code is registered in the immobilizer-ECU and ignition key.
	POINTS TO NOTE DURING OPERATION If none of the functions can be used, check the diagnosis codes, and after carrying out any necessary repairs, repeat the operation. If an incorrect password is input ten times in a row, the immobilizer-ECU judges that an unauthorized operation is being attempted. Start-prevention mode will be set, and engine operation will stop and all special functions will be disabled. If the ignition switch is turned to "ON" position, "Unauthorized operation, start-prevention mode" will be cancelled.
	KEY ID (ENCRYPTED CODE) REGISTRATION <MUT-II> All ignition keys can be registered with MUT-II. Additional ignition keys can be registered with MUT-II.
	Registration with the MUT-II CAUTION To prevent damage to MUT-II, always turn the ignition switch to "LOCK" (OFF) position before connecting or disconnecting MUT-II. NOTE: Using the key ID register function will cause all key IDs that have been previously registered in the immobilizer-ECU to be erased. All keys need to be registered. Those which have been registered before should be on hand before using this function. If registering more than one key, do not disconnect MUT-II halfway through the registration process. After registering key IDs, check that the engine can be started using all of the keys that have been registered. If the engine will not start, refer to Immobilizer System Diagnosis .
	Connect MUT-II to diagnosis connector (16- pin). Turn the ignition switch to "ON" position.
	At "System Select," press "YES"
	Select "Immobilizer," press "YES".
	Select "Special Func", press "YES". If diagnosis code No.11 exists, "Can't execute" will be displayed. Check for diagnosis code No.11 (Refer to .)
	Select "key ID register", press "YES".
	Input the password. Use the "UP" and "DOWN" keys to change the current password digit to a value between 0 and 9. Use the "LEFT" and "RIGHT" keys to move to a different password digit. Press the "YES" key to accept the password. If an incorrect password is input five times in a row, this screen is displayed and the immobilizer-ECU switches to unauthorized operation, start-prevention mode. NOTE: Four separate digits must be input to make up the password.
	Press the "YES" key to start key ID registration.
	This will be displayed when the key ID registration is successful. If an error occurs during key ID registration, the message "Can't execute" will be displayed. If the key has already been registered, "Key ID has been registered" will be displayed.
	The number of keys currently registered will be displayed. To register an additional key, replace the ignition key with the next key to be registered within five seconds and then press the "YES" key. Key ID registration screen will be displayed, then register another key. If key ID registration is complete, press the "NO" key. NOTE: A maximum of eight different keys can be registered. This completes the registration operation. Turn the ignition switch "LOCK" (OFF) and leave it off for approximately ten seconds. Check that the engine can be started with each of the ignition keys. Check that the immobilizer system diagnosis code and MPI system diagnosis code did not set. Turn the ignition switch to "LOCK" (OFF) position. Disconnect MUT-II.
	Registration of additional keys with the MUT-II Additional key(s) can be registered with the MUT-II while keeping all existing key data. CAUTION To prevent damage to MUT-II, always turn the ignition switch to "LOCK" (OFF) position before connecting or disconnecting MUT-II. NOTE: To register additional keys with the MUT-II, no registered keys must be lost.
	Connect MUT-II (MB991502) to the 16-pin diagnosis connector. Turn the ignition switch to "ON" position.
	At "System Select," press "YES"
	Select "Immobilizer," press "YES".
	Select "Special Func", press "YES". If diagnosis code No.11 exists, "Can't execute" will be displayed. Check for diagnosis code No.11 (Refer to .)
	Select "Add key ID reg", press "YES".
	Press the "YES" key to start key ID registration. This will be displayed when the add key ID registration is successful. If an error occurs during key ID registration, the message "Can't execute" will be displayed. If the key has already been registered, "Key ID has been registered" will be displayed.
	The number of keys currently registered will be displayed. To register an additional key, replace the ignition key with the next key to be registered within five seconds and then press the "YES" key. Key ID registration screen will be displayed, then register another key. NOTE: A maximum of eight different keys can be registered. If key ID registration is complete, press the "NO" key. This completes the registration operation. Turn the ignition switch "LOCK" (OFF) and leave it off for approximately ten seconds. Check that the engine can be started with each of the ignition keys. Check that the immobilizer system diagnosis code and MPI system diagnosis code did not set. Turn the ignition switch to "LOCK" (OFF) position. Disconnect MUT-II.
	KEY ID (ENCRYPTED CODE) REGISTRATION <MUT-III> All ignition keys can be registered with MUT-III. Additional ignition keys can be registered with MUT-III.
	Registration with the MUT-III CAUTION To prevent damage to MUT-III, always turn the ignition switch to "LOCK" (OFF) position before connecting or disconnecting MUT-III. NOTE: Before registration, check that no diagnosis code is set. If a diagnosis code is set, resolve the problem beforehand. Using the key ID register function will cause all key IDs that have been previously registered in the immobilizer-ECU to be erased. All keys need to be registered. Those which have been registered before should be on hand before using this function. If registering more than one key, do not disconnect MUT-III halfway through the registration process. After registering key IDs, check that the engine can be started using all of the keys that have been registered. If the engine will not start, refer to Immobilizer System Diagnosis .
	Connect the MUT-III to the diagnosis connector (16-pin). Turn the ignition switch to "ON" position.
	Select "System select" from the start-up screen.
	Choose "IMMOBILIZER" from the "POWER TRAIN" tab.
	Choose "Special Function" from "IMMOBILIZER" screen.
	Choose "Key registration" from "Special Function" screen.
	Enter the vehicle’s password (secret code) on the "Key registration" screen, and then click the check mark icon. Follow the prompts on the screen to insert key(s) into the ignition switch to begin key registration.
	If the key ID was registered successfully, "Progress" indication will turn active (gray). Then the registration process completes. If the key ID failed to be registered, "In-Complete" indication will turn active (gray). The number of keys currently registered will be displayed. To register an additional key, replace the ignition key with the next key to be registered within five seconds. Key ID registration screen will be displayed, then register another key. NOTE: A maximum of eight different keys can be registered. This completes the registration operation. Turn the ignition switch "LOCK" (OFF) and leave it off for approximately ten seconds. Check that the engine can be started with each of the ignition keys. Check that the immobilizer system diagnosis code and MPI system diagnosis code did not set. If not diagnosis code is shown, terminate the MUT-III. Turn the ignition switch to "LOCK" (OFF) position. Disconnect MUT-III.
	Registration of additional keys with the MUT-III Additional key(s) can be registered with the MUT-III while keeping all existing key data. CAUTION To prevent damage to MUT-III, always turn the ignition switch to "LOCK" (OFF) position before connecting or disconnecting MUT-III. NOTE: To register additional keys with the MUT-III, no registered keys must be lost.
	Connect MUT-III to the 16-pin diagnosis connector. Turn the ignition switch to "ON" position. NOTE: Before registration, check that no diagnosis code is set. If a diagnosis code is set, resolve the problem beforehand. Carry out steps 3 to 6 of the sub-section "Registration with MUT-III."
	Choose "Transponder ID addition" from "Special Function" screen.
	Enter the vehicles password (secret code) on the "Transponder ID addition" screen, and then click the check mark icon.
	If an additional registration is made successfully, the screen will ask if another key is registered or not. If the third ignition key is registered, remove the key, which has been registered. Then insert the third key within five seconds, and then turn it to the ON position. Register the additional ignition key according to step 6 above. The number of the registered ignition keys are shown on "The number of registered key" screen. NOTE: A maximum of eight different keys can be registered. This completes the registration operation. Turn the ignition switch "LOCK" (OFF) and leave it off for approximately ten seconds. Check that the engine can be started with each of the ignition keys. Check that the immobilizer system diagnosis code and MPI system diagnosis code did not set. If not diagnosis code is shown, terminate the MUT-III. Turn the ignition switch to "LOCK" (OFF) position. Disconnect MUT-III.
	Registration of additional key(s) without using the MUT-III If the MUT-III is not available, new key(s) can be registered by operating two keys which have been registered to the vehicle (A maximum of eight keys can be registered to one vehicle). Follow the procedure below to register new key(s) to the vehicle. NOTE: The registered key is the key that allows you to start the engine. Turn "ON" the ignition switch by using the first registered key (key A), and wait for five seconds. Remove the first registered key (key A). Insert the second registered ignition key (key B), and turn it to the ON position. The immobilizer-ECU identifies the new key to accept or reject it, and operates the immobilizer indicator (See the table below). If a new ignition key is registered further, repeat steps 1 to 7 above. A maximum of eight ignition keys can be registered to one vehicle (If you attempt to register the ninth key, the immobilizer-ECU rejects the key). If any of the following conditions are satisfied, the additional key registration mode will terminate: The ignition switch has been on for more than 30 seconds. After the ignition key has been turned to the "LOCK" (OFF), the engine control relay is turned off. The MUT-III has started communicating with vehicle systems. After the registration mode has terminated, the additionally registered key(s) should allow you to start the engine.