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Engine Immobilizer System: Registration

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

The key has 2 codes: the key code (immobilizer code) and the wireless code (recognition code). Both of these codes need to be registered. For wireless code registration procedures, refer to the following procedures (see REGISTRATION ). For key code registration procedures, refer to the procedures below.

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

        Target ECU See Procedure
        Transponder key ECU Procedure "A"
    2. After replacing the transponder key ECU (new key code registration).
      1. Register the key codes (immobilizer code) in the new transponder key ECU.
        CODE REGISTRATION - REPLACING TRANSPONDER KEY ECU

        Target ECU See Procedure
        Transponder key ECU Procedure "B"
      2. Register the ECU COMMUNICATION ID between the ECM and the new transponder key ECU.
        CODE REGISTRATION - REGISTER ECU COMMUNICATION ID

        Target ECU See Procedure
        ECM Procedure "C"
    3. After replacing the ECM.
      1. Reregister the ECU COMMUNICATION ID between the new ECM and the transponder key ECU.
        CODE REGISTRATION - REPLACING ECM

        Target ECU See Procedure
        Transponder key ECU Procedure "C"
    4. After replacing the transponder key ECU and ECM.
      1. Register the ECU COMMUNICATION ID between the new ECM and the new transponder key ECU.
        CODE REGISTRATION - REPLACING TRANSPONDER KEY ECU AND ECM

        Target ECU See Procedure
        Transponder key ECU Procedure "C"
    5. Erasure of key codes.
      1. Erase the key code(s) of the lost key(s).
        CODE REGISTRATION - ERASURE OF KEY CODES

        Target ECU See Procedure
        Transponder key ECU Procedure "D"
  2. NEW KEY CODE REGISTRATION (PROCEDURE "B") 
    1. New key code registration

      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 keys.
      • 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.
        CODE REGISTRATION PROCEDURE

        Procedure Security Indicator Light Condition
        1. START -
        HINT:
        Until first key is inserted
        2. Insert key into the ignition key cylinder BLINKING
        3. Select following items on the tester:
        1. IMMOBILIZER
        2. ID UTILITY
        3. IMMOB CODE REG

        HINT:
        After above operation, proceed to next step in accordance with prompts on tester screen        		 ON
        HINT:
        Within 2 minutes
        OFF for 1 second and then ON
        4. Remove the key and then push NEXT button on tester ON
        5. Insert master key or sub-key to be registered OFF for 1 second and then ON
        6. Remove key and then push NEXT button on tester ON
        7. Insert a master key or sub-key to be registered OFF for 1 second and then ON
        OFF
        HINT:
        0.5 seconds after turning ON
        8. Remove key BLINKING
        9. END
    2. End automatic key code registration mode.

      Automatic key code registration mode can be forced to end when at least 1 key code (immobilizer code) for the key has been registered.

      1. Turn the ignition switch on and off 5 times within 10 seconds using the master key that has already registered.

      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.
        1. Insert the key into the ignition key cylinder and turn the Techstream on.
        2. Follow the instructions on the Techstream screen to end the new key code registration mode.
        3. New key code registration mode ends.
      • When the engine immobilizer system is operating normally and the key is pulled out, the security indicator light blinks continuously.
      • If the new key code registration fails, code 2-1 is output by the security indicator light. 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 light. The output details are shown below.
    3. Fig 1: Security Indicator Light Blinking Code Chart
    G04490640Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  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 each 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 key cylinder or the ignition 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 master key to register other keys.
    NOTE: When the ignition key cylinder has been replaced, locking and unlocking doors are 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's transmitter module battery fails, the original master key can be used to lock and unlock doors through the door key cylinder.
    1. Additional key code registration

      Condition: 

      At least one key code must be registered in the transponder key ECU.

      REGISTRATION OF ADDITIONAL KEY (PROCEDURE "A")

      Procedure Time (Operation completion time) Security Indicator Light Condition
      1. START - BLINKING
      HINT:
      Until first key is inserted
      2. Insert previously registered master key into ignition key cylinder, turn ignition switch to ON position, and turn tester on - OFF
      3. Select the following items on the tester:
      1. Select Body Electrical
      2. Select Immobiliser
      3. Select Utility
      4. Select Key Registration
      		 ON
      4. Remove master key and then push NEXT button on tester. Immediately after above operation, insert previously registered master key into ignition key cylinder, turn ignition switch to ON position, and then push NEXT button on tester. Within 120 seconds BLINKING --> ON
      5. Remove master key and then push NEXT button on tester Within 20 seconds
      HINT:
      After the tester instruction.      		 ON
      6. Insert key to be registered into ignition key cylinder Within 10 seconds. BLINKING
      7. After 60 seconds, key is registered
      HINT:
      Security indicator light goes off      		 - OFF
      8. Remove key and then push NEXT button on tester BLINKING
      9. Tester screen displays number of registered key
      10. END

      HINT:

      • If the key is removed within 60 seconds in step 6, the additional key code registration mode is canceled.
      • A brief outline of the procedures for key code registration is shown above. For more detailed information, refer to the Techstream screen's instructions.
      • When the engine immobilizer system is operating normally and the key is pulled out, the security indicator light blinks continuously.
      • If the additional key code registration fails, code 2-1 is output by the security indicator light. Trying to reregister 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 light. 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, a new key code must be registered.

    1. Erasure of key code

      Condition: 

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

      ERASURE OF KEY CODE (PROCEDURE "D")

      Procedure Time (Operation completion time) Security Indicator Light Condition
      1. START - BLINKING
      HINT:
      Until first key is inserted
      2. Insert previously registered master key into ignition key cylinder, turn ignition switch to ON position, and turn intelligent tester on - OFF
      3. Select following items on tester:
      1. Select Body Electrical
      2. Select Immobiliser
      3. Select Utility
      4. Select Key Erasure
      		 OFF
      4. Remove key and then push NEXT button on tester. Immediately after above operation, insert previously registered master key into ignition key cylinder, turn ignition switch to ON position, and then push NEXT button on tester. Within 120 seconds BLINKING --> ON for 1 second then OFF
      5. Remove master key Within 10 seconds
      HINT:
      After tester instruction      		 BLINKING
      6. END

      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, refer to the Techstream screen's instructions.
      • When the engine immobilizer system is operating normally and the key is pulled out, the security indicator light blinks continuously.
  5. ECU - ECM COMMUNICATION ID REGISTRATION (PROCEDURE "C") 
    NOTE:
    • The ECU communication ID should be registered when the transponder key ECU and / or ECM is replaced in order to match the ECU - ECM communication ID.
    • The engine cannot be started unless the ECU - ECM communication ID matches.
    • 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.
    1. 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 

        Fig 2: Identifying TC And CG Terminals Of DLC3
        G04490641Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Insert a previously registered key into the ignition key cylinder, turn the ignition switch ON (do not start the engine), and leave it as is for 30 minutes.
      4. Turn the ignition switch 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.
    2. After replacing the ECM.
      1. Register the ECU - ECM communication ID
        CODE REGISTRATION - REPLACING ECM

        Procedure Security Indicator Light Condition
        1. Insert previously registered key into ignition key cylinder OFF
        2. Start engine
        3. Check that engine starts and stays on for more than 3 seconds. Registration is complete.
    3. 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
        CODE REGISTRATION - REPLACING TRANSPONDER KEY ECU AND ECM

        Procedure Security Indicator Light Condition
        1. Insert previously registered key into ignition key cylinder OFF
        2. Start engine
        3. Check that engine starts and stays on for more than 3 seconds. Registration is complete.
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