Engine Immobiliser System

ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: REGISTRATION

REGISTRATION
HINT: The key has 2 codes: the key code (immobiliser code) and the wireless code (recognition code). Both of these codes need to be registered. Refer to key code registration procedures and wireless code registration procedures.

1. DESCRIPTION OF CODE REGISTRATION
(a) When adding master keys and sub-keys (additional registration).
(1) Register the key codes in the transponder key ECU.






(b) After replacing the transponder key ECU (new key code registration).
(1) Register the key codes (immobiliser codes) in the new transponder key ECU.





(2) Register the ECM COMMUNICATION ID for communication between the ECM and the new transponder key ECU.






(c) After replacing the ECM.
(1) Register the ECU COMMUNICATION ID for communication between the new ECM and the transponder key ECU.






(d) After replacing the transponder key ECU and ECM.
(1) Register the ECU COMMUNICATION ID for communication between the new ECM and the new transponder key ECU.






(e) Erasure of key codes.
(1) Erase the key code(s) of the lost key(s).






2. NEW KEY CODE REGISTRATION (PROCEDURE "B")
(a) New key code registration (When using Techstream).

Condition:
- No key codes are registered in the transponder key ECU.
HINT:
- In this mode, a maximum of 3 key codes for 2 master keys and 1 sub-key can be registered. The master keys and sub-key can be registered in any order because the transponder key ECU can distinguish between different types of key.
- New key codes must be registered with the battery connected. The ignition switch can be either ON or OFF.
- When a new transponder key ECU is installed, key codes must be registered in the transponder key ECU.





HINT:
- The new key code registration mode can be deliberately ended by following procedure A or B below when the battery is connected, and at least 1 key code for the master key has been registered.

A (When not using Techstream)

1. Insert the key into the ignition key cylinder.
2. Turn the ignition switch from ON to OFF 5 times within 10 seconds.
3. New key code registration mode ends.
- When the immobiliser system is operating normally and the key is removed, the security indicator blinks continuously.
- If the new key code registration fails, code 2-1 is output by the security indicator. Trying to re-register an already registered key causes code 2-2 to be output when the key is inserted. If the number of registered key codes exceeds the limit, code 2-3 is output by the security indicator. The output details are shown below.





(b) New key code registration (Without using Techstream)

Conditions:
- No key codes are registered in the transponder key ECU.
- All doors are closed, the ignition switch is OFF, and no key is inserted into the ignition key cylinder for 5 seconds or more.





HINT:
- Only the master key can be registered.
- Unless the key is inserted into the ignition key cylinder within 10 seconds in step 5, the ECU cancels registration mode.
- Follow the additional key code registration procedure to register 2 or more keys.
- If the new key code registration has failed, the security indicator blinks as follows.
1. Code 2-1 is output when the transponder key ECU fails to receive a key ID code.
2. Code 2-3 is output when a sub-key is inserted.

3. REGISTRATION OF ADDITIONAL KEY (PROCEDURE "A")
HINT:
- A maximum of 5 master key codes and 3 sub-key codes can be registered.
- Additional key code registration mode ends if any step is not completed within the specified time.
- When proceeding to the next step while the timer is running, the timer is reset and begins the countdown for the next step.
- When the ignition cylinder or the key cylinder set is replaced, remove the transmitter module from the original master key. Then install this transmitter module to a new key and use the new key as the master key. If necessary, use this new master key to register other keys.
NOTE: When the ignition key cylinder has been replaced, locking and unlocking doors is possible with the new master key once the transmitter module from the original master key has been transferred to it. However, the new master key will not be able to lock and unlock doors through the door key cylinder. Keep the original master key. If the new master key transmitter module battery fails, the original master key can be used to lock and unlock doors through the door key cylinder.

(a) Additional key code registration

Condition:
- At least one key code must be registered in the transponder key ECU





HINT:
- If the key is removed within 60 seconds in step 6, additional key code registration mode is canceled.
- A brief outline of the procedures for key code registration is shown above. For more detailed information, please refer to the Techstream screen's instructions.
- When the immobiliser system is operating normally and the key is removed, the security indicator blinks continuously.
- If the additional key code registration fails, code 2-1 is output by the security indicator. Trying to re-register a previously registered key causes code 2-2 to be output when the key is inserted. If the number of registered key codes exceeds the limit, code 2-3 is output by the security indicator. The output details are shown in procedure "B".

4. ERASURE OF KEY CODE (PROCEDURE "D")
HINT: All key codes are erased except for the master key, which is used for erasing the key codes. In order to use a key whose code has been erased, the key code must be re-registered.

(a) Erasure of key code

Condition:
- At least two key codes must be registered in the transponder key ECU.





HINT:
- To cancel erasure mode after the erasure request is sent from the tester to the ECU, leave the master key inserted until the timer times out.
- A brief outline of the procedures for key code erasure is shown above. For more detailed information, please refer to the Techstream screen's instructions.
- When the immobiliser system is operating normally and the key is removed, the security indicator blinks continuously.

5. ECU - ECM COMMUNICATION ID REGISTRATION (PROCEDURE "C")
NOTICE:
- The ECU communication ID should be registered when the transponder key ECU and/or the ECM is replaced in order to match the ECM communication ID.
- The engine cannot be started unless the ECM communication IDs match.
- Do not disconnect the battery while the ECU - ECM communication ID is being set.
- Do not turn the ignition switch from ON to OFF 20 times or more before setting the ECU - ECM communication ID. If this operation is likely to be performed 20 times or more, disconnect the negative battery terminal cable in order to avoid engine start disablement. Failure to do so will result in the engine not starting unless the transponder key ECU is replaced with a new one.

(a) After replacing the transponder key ECU
(1) Register the key code(s) by following the new key code registration procedure. (Procedure "B")
(2) Using SST, connect the TC and CG terminals of the DLC3 before inserting the key into the key cylinder.
SST: 09843-18040




(3) Insert a previously registered key into the ignition key cylinder, turn the ignition switch to ON (do not start the engine), and leave it as is for 30 minutes.
(4) Turn the ignition switch to OFF and disconnect terminals TC and CG.
(5) Start the engine.
(6) Check that the engine starts and stays on for more then 3 seconds. The registration is complete.
(b) After replacing the ECM.
(1) Register the ECU - ECM communication ID






(c) After replacing the transponder key ECU and ECM
(1) Register the key code(s) by following the new key code registration procedure. (Procedure "B")
(2) Register the ECU - ECM communication ID