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Engine Immobilizer System: Registration

WARNING: This page is about a different car, the 2008 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
  1. DESCRIPTION OF CODE REGISTRATION 
    1. When adding master keys or sub-keys (additional registration).
      1. Register key code in the transponder key ECU.
        CODE REGISTRATION SYSTEM REFERENCE CHART

        Target ECU See Procedure
        Transponder key ECU Procedure "A"
    2. After replacing the transponder key ECU (New key code registration).
      1. Register the key code (immobilizer code) in the new transponder key ECU.
        CODE REGISTRATION SYSTEM REFERENCE CHART

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

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

        Target ECU See Procedure
        Transponder key ECU Procedure "C"
    4. After replacing the transponder key ECU and ECM.
      1. Register the ECU - ECM COMMUNICATION ID between the new ECM and the new transponder key ECU.
        CODE REGISTRATION SYSTEM REFERENCE CHART

        Target ECU See Procedure
        Transponder key ECU Procedure "C"
    5. Erasure of key codes.
      1. Erase all of the key codes except master key.
        CODE REGISTRATION SYSTEM REFERENCE CHART

        Target ECU See Procedure
        Transponder key ECU Procedure "D"
      2. Erase all of the key codes.
        CODE REGISTRATION SYSTEM REFERENCE CHART

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

      HINT:

      • This mode operates normally when no key codes are registered in the transponder key ECU.
      • When a new transponder key ECU is installed, key codes must be registered in the transponder key ECU.
      • 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.
      CODE REGISTRATION REFERENCE

      Procedure Security Indicator Light Condition
      1. Start registration. Security indicator light is blinking.
      2. Insert one of master keys into the ignition key cylinder. Security indicator light turned on.
      3. Select following items on the tester:
      1. Body Electrical
      2. Immobilizer
      3. ID Utility
      4. Immobilizer Code Registration

        HINT:

        After above operation, proceed to next step in accordance with prompts on the tester screen.

      		 Security indicator light turned off for 1 sec. and then turned on.
      4. Remove the key. Security indicator light turned on.
      HINT:
      When the maximum number of the key codes is registered, the security indicator light remains off until the last key registered is removed. After it is removed, the security indicator light starts blinking.
      5. Register another key?
      YES: Go to step 6.
      NO: Go to step 7.
      HINT:
      Key codes for a maximum of 2 master keys and 1 sub-key can be registered.
      6. Insert another key into the ignition key cylinder. Then go to step 4. Security indicator light turned off for 1 sec. and then turned on.
      7. End of registration.
    2. End the new key code registration mode (when not using Techstream)

      HINT:

      The automatic key code registration mode can be forced to end when at least 1 key code (immobilizer code) for a master key has been registered.

      1. Turn the ignition switch ON and LOCK 5 times within 10 seconds using a master key that has already been registered.
    3. End the new key code registration mode (when using Techstream)

      HINT:

      The automatic key code registration mode can be forced to end when at least 1 key code (immobilizer code) for a 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.
        Fig 1: Security Indicator Light Blinking Pattern
        G05157066Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        • 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 reregister 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.
  3. REGISTRATION OF ADDITIONAL KEY (PROCEDURE "A") 
    1. Additional key code registration

      HINT:

      • At least one key code must be registered in the transponder key ECU in order for this mode to operate normally.
      • In this mode, a maximum of 5 master key codes and 3 sub-key codes can be registered.
      • This mode ends if each step is not completed within the specified time.
      • 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 only the ignition key cylinder has been replaced, the new key cannot be used to lock or unlock doors. Therefore, keep the original key for locking and unlocking doors in order to avoid being locked out of the vehicle if the transmitter battery becomes depleted.
      REGISTRATION OF ADDITIONAL KEY (PROCEDURE "A") REFERENCE

      Procedure Security Indicator Light Condition Time (Completion of operation)
      1. Start registration. Security indicator light is blinking. -
      2. Insert an already registered master key into the ignition key cylinder, turn the ignition switch ON, and turn the tester ON. Security indicator light turned off. Within 120 sec.
      3. Select following items on the tester:
      1. Body Electrical
      2. Immobilizer
      3. ID Utility
      4. Immobilizer Code Registration
      		 Security indicator light turned on.
      4. Remove the master key and then push NEXT button on tester. Security indicator light turned on. Within 20 sec. of the instruction on the tester.
      5. Insert unregistered key into the ignition key cylinder. Security indicator light is blinking.
      HINT:
      Registration is being performed.      		 Within 10 sec.
      6. After 60 sec, key is registered.
      HINT:
      The security indicator light turns off.      		 Security indicator light turned off. -
      7. Remove the key. Security indicator light is blinking.
      8. Tester screen displays number of registered keys.
      9. Register another key?
      YES: Go to step 2.
      NO: Go to step 10.
      10. End of registration.

      HINT:

      • A brief outline of the procedures for key code registration is shown above. For more detailed information, refer to the screen of the Techstream.
      • 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 all key codes except master key

      HINT:

      • At least one key code must be registered in the transponder key ECU in order for this mode to operate normally.
      • Make sure the inserted key is a registered master key.
      ERASURE OF KEY CODE (PROCEDURE "D") REFERENCE

      Procedure Security Indicator Light Condition Time (Completion of operation)
      1. Start of erasure. Security indicator light is blinking. -
      2. Insert previously registered master key into ignition key cylinder and turn ignition switch ON. Security indicator light turned off. Within 120 sec.
      3. Select following items on the tester:
      1. Body Electrical
      2. Immobilizer
      3. ID Utility
      4. Immobilizer Code Erasure
      		 Security indicator light turned on for 1 sec. then turned off.
      4. Remove the master key.
      HINT:
      Key codes are deleted except inserted key.      		 Security indicator light turned on. Within 10 sec. of the instruction on the tester.
      5. End of erasure.
    2. Erasure all of key codes

      HINT:

      • This mode performs normally, when at least one key codes must be registered in the transponder key ECU.
      • Insertion key is either registered key or unregistered key.
      ERASURE OF KEY CODE (PROCEDURE "D") REFERENCE

      Procedure Security Indicator Light Condition Time (Completion of operation)
      1. Using TIS, confirm that user and vehicle match. Security indicator light is blinking. -
      2. Start of erasure. Security indicator light is blinking. -
      3. Insert previously registered master key or unregistered key into ignition key cylinder and turn ignition switch ON. Security indicator light turned off. Within 120 sec.
      4. Select following items on the tester:
      1. Body Electrical
      2. Immobilizer
      3. ID Utility
      4. Immobilizer Code Erasure
      		 Security indicator light turned on for 1 sec. then turned off. Within 15 min.
      5. Completion of erasure of all key codes is displayed. Security indicator light turned on. -
      6. End of erasure.

      HINT:

      • A brief outline of the procedures for key code registration is shown above. For more detailed information, refer to the screen of the Techstream.
      • 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 - ECM communication ID must be registered to the transponder key ECU and ECM when one of the following occurs in order to match their IDs: 1) the transponder key ECU is replaced, 2) the ECM is replaced, or 3) the transponder key ECU and ECM are replaced.
    • The SFI system cannot be started unless the ECU - ECM communication IDs of the transponder key ECU and ECM match.
    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 terminals 13 (TC) and 4 (CG) of the DLC3 before inserting the key into the key cylinder.
        Fig 2: Identifying DLC3 Connector Terminals
        G05157067Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        SST 09843-18040 

        ECU - ECM COMMUNICATION ID REGISTRATION (PROCEDURE "C") PROCEDURE CHART

        Procedure Security Indicator Light Condition
        1. Insert previously registered key into ignition key cylinder and turn ignition switch ON.
        HINT:
        Do not start the engine.        		 Security indicator light turned off.
        2. Leave vehicle as is for 30 min.
        3. Turn the ignition switch OFF and disconnect terminals TC and CG.
        4. Start engine.
        5. Check that engine starts and stays on for more than 3 sec. Registration is complete.
    2. After replacing the ECM
      1. Register the ECU - ECM communication ID.
        ECU - ECM COMMUNICATION ID REGISTRATION (PROCEDURE "C") PROCEDURE CHART

        Procedure Security Indicator Light Condition
        1. Insert previously registered key into ignition key cylinder. Security indicator light turned off.
        2. Start engine.
        3. Check that engine starts and stays on for more than 3 sec. 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.
        ECU - ECM COMMUNICATION ID REGISTRATION (PROCEDURE "C") PROCEDURE CHART

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