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Engine Immobiliser System: Replacement

  1. DESCRIPTION OF CODE REGISTRATION 

    HINT:

    The key has 2 codes: the immobilizer code and the wireless code, which need to be registered.

    1. New registration of key: (Example: New "Key 1" registration)
      Fig 1: Code Registration Description Chart (New Key Registration)
      G01173535Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. In case of replacing transponder key ECU
      Fig 2: Code Registration Description Chart (Replacing Transponder Key ECU)
      G01173536Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. In case of replacing ECM
      Fig 3: Code Registration Description Chart (Replacing ECM)
      G01173537Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. KEY REGISTRATION IN AUTOMATIC REGISTRATION 

    HINT:

    In case of having lost all the already registered master keys, you are not able to do additional registration or deletion.

    1. Registration of a new key.

      HINT:

      • Registration must be done when you install a new Transponder key ECU.
      • A new Transponder key ECU is on the automatic key code registration mode. The already fixed number of key codes for this Transponder key ECU can be registered.
      • On this type of vehicle, up to 3 key codes can be registered.
      • In the automatic registration mode, 2 master keys, a set of flat key and 1 sub-key can be registered, however, the registration order is not specially determined.
      • As a transponder chip for the immobiliser system is built in the key case of the flat key, bring the key case closer to a key cylinder whenever using the flat key.
        Fig 4: Key Registration Flow Chart (Automatic Registration)
        G01173538Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      • When a key is not inserted in the key cylinder on the automatic registration mode, the security indicator always lights on.

        When the immobilizer system operates normally and the key is pulled out, the security indicator blinks.

      • When key code registration could not be performed on the automatic registration mode, code 2-1 is output from the security indicator and when inserted the already key, code 2-2 is output.
        Fig 5: Recognition Code Registration Display
        G01173539Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Automatic registration mode completion

      If completing the mode forcibly when more than 1 master key code have been registered on the automatic registration mode, perform the following operation using the already registered key.

      Turn the ignition switch ON/OFF alternately more than 5 times in 10 seconds.

  3. REGISTRATION OF ADDITIONAL KEY 
    1. There is 2 ways for registration of additional key; one is by switch operation and the other is by LEXUS hand-held tester.

      HINT:

      • It is possible to register up to 5 master key codes and 3 sub key codes.
      • The registration operation will be cancelled if each operation is not completed within the specified time.
      • When the "Ignition cylinder set" or the "Lock cylinder set" is replaced, remove the transmitter module from the original master key (with the transmitter built in), install this transmitter module to the newly purchased key and use it as a master key. If necessary, use this master key to register other keys.
      • As a transponder chip for the immobilizer system is built in the key case of the flat key, bring the key case closer to a key cylinder whenever using the flat key.
      NOTE: When the ignition cylinder alone is replaced, the new key (with the transmitter built in) can perform the door lock/unlock operation by wireless operation, but not by inserting it in the door key cylinder.
      Therefore, take along the key (original key) for door lock/unlock to avoid troubles caused by the battery shut-off of the new key's transmitter.
      1. By LEXUS Hand-held Tester:
        Fig 6: Additional Key Registration Flow Chart (LEXUS Hand-Held Tester)
        G01173540Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        • Fig 7 is to show briefly the registration procedure using the LEXUS hand-held tester.
        • For detailed procedures, please refer to the prompts on the tester screen.
      2. By Switch Operation:
        Fig 7: Additional Key Registration Flow Chart (By Switch Operation)
        G01173541Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. ERASURE OF KEY CODE 
    1. There is 2 ways for eraser of key code; one is by switch operation and the other is by LEXUS hand-held tester.

      HINT:

      • All key codes will be erased except the master key switch is used for erase operation.

        When using the key which was used before erasure, it is necessary to register the code again.

      • The registration operation will be cancelled if each operation is not completed within the specified time.
      • As a transponder chip for the immobilizer system is built in the key case of the flat key, bring the key case closer to a key cylinder whenever using the flat key.
      1. By LEXUS Hand-held Tester:
        Fig 8: Key Code Erasing Flow Chart (LEXUS Hand-Held Tester)
        G01173542Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        • This page is to show briefly the registration procedure using the LEXUS hand-held tester.
        • For detailed procedure, please refer to the prompts on the tester screen.
      2. By Switch Operation:
        Fig 9: Key Code Erasing Flow Chart (By Switch Operation)
        G01173543Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        When the key cannot be removed in step 5, key code erasure is canceled.

  5. REGISTRATION OF KEY NUMBER 
    1. Newly registration of key number:

      HINT:

      • Be sure to perform this operation when the Transponder key ECU is replaced by a new one (in order to register ID of each vehicle to the ECU.).
      • The key number is typed on the key number plate.
      • As a transponder chip for the immobiliser system is built in the key case of the flat key, bring the key case closer to a key cylinder whenever using the flat key.
        Fig 10: Key Number Registration Flow Chart (New Key Number Registration)
        G01173544Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Change the key number:

      HINT:

      Be sure to perform this operation when the key number of the vehicle is changed, such as the case when all the key cylinders are replaced.

      • The key number is typed on the key number plate.
        Fig 11: Key Number Registration Flow Chart (Changing Key Number)
        G01173545Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. ECU COMMUNICATION ID REGISTRATION 

    HINT:

    • This operation should be performed when either the Transponder key ECU or the ECM is replace in order to match the ECM COMMUNICATION ID of these 2 ECU.
    • The engine cannot be started without the ECM COMMUNICATION ID matching.

    Registration Operation

    After either the Transponder key ECU or the ECM is replaced, turn the ignition switch ON (Engine is not running, short the Tc and CG terminals of DLC3 and leave it as it is for 30 minutes.

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