Alarm Module: Service and Repair

ENGINE IMMOBILIZER SYSTEM

REGISTRATION PROCEDURE

HINT: If you lose all the registered master keys, you cannot registrar or delete additionally. Change the transponder key ECU and then register the new key codes following the registration procedure of the automatic registration mode below.




1. KEY REGISTRATION IN AUTOMATIC REGISTRATION MODE
a. Registration of a new transponder key.

HINT:
- This procedure must be done when you install a new transponder key ECU.
- The new transponder key ECU is in automatic key code registration mode. The key codes already fixed for this transponder key ECU can be registered.
For this type of vehicle, up to 3 key codes can be registered.
- In the automatic registration mode, the last key registered becomes a sub-key.







HINT:
- When a key cannot be inserted in the key cylinder in automatic registration mode, the security indicator always comes on.
- When the immobilizer system operates normally and the key is pull out, the security indicator blinks.
- When key code registration could not be performed in automatic registration mode, code 2-1 is output from the security indicator and when the registered key in inserted, code 2-2 is output.

b. Automatic registration mode completion
If completing the mode forcibly when more than 1 key codes are registered in automatic registration mode, perform the following procedures.
After 1 more key codes are registered with the master key, turn the ignition switch LOCK -> ON 5 times within 10 secs. by inserting the registered key or without pulling the key out.





2. REGISTRATION OF ADDITIONAL MASTER KEY AND SUB KEY
Do this operation to register an additional master key and sub key.

(*1): Insert the master key into the key cylinder.
Turn the ignition switch to the LOCK -> ON position 5 times within 15 seconds.
(*2): Open and close the driver's door 6 times within 20 seconds after completion of the previous operation.
(*3): Remove the master key from the ignition switch and insert another key to be registered in the key cylinder within 0 seconds after completion of the previous operation.
(*4): Turn the ignition switch to the ON position and wait for 60 seconds or more, then key registration will be completed.
(*5): 10 seconds or more elapse after removal of the key or open and close strived's door, then key registration will be completed.
(*6): When registering multiple keys, insert the key to be registered in the key cylinder.

HINT:
- It is possible to register up to 4 master key codes including the registered key code.
- It is possible to register up to 2 sub key codes including the register key code.
- When any operation time described above is over, registration mode completes.
- When the next procedure is performed while the timer is working, the timer completes counting time, then the next timer starts.




3. ERASURE OF TRANSPONDER KEY CODE
Do this operation to erase transponder key registration from the transponder key computer.

HINT: Delete all other master and sub-key codes leaving the master key code to use the operation. When using the key which was used before deletion, it is necessary to register the code again.

(*1): Insert the master cylinder into the key cylinder.
Turn the ignition switch to LOCK -> ON 6 times within 15 seconds.
(*2): Open and close driver's door 7 times and remove the master key within 20 seconds after completion of the previous operation.

HINT:
- When any operation time described above is over, registration mode completes.
- When the next procedure is performed while the timer is working, the timer completes counting time, then the next timer starts.

4. ECU COMMUNICATION ID REGISTRATION

NOTE:
- The ECU communication ID should be registered when the transponder key ECU and/or the ECM is replaced, in order to match these ECM COMMUNICATION ID.
- The engine cannot be started unless the ECM COMMUNICATION ID matches.

a. Register the ECU communication ID.
1. After the transponder key ECU and/or the ECM is replaced, turn the ignition switch ON (the engine is not running).
2. Short the Tc and CG terminals of the DLC3 and leave it as it is for 30 minutes.
3. Check that the engine starts.