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Engine Immobilizer System: Registration

  1. DESCRIPTION OF CODE REGISTRATION 

    HINT

    • The ID codes are the same as recognition codes for the wireless transmitter and the engine immobilizer function Registering an ID code enables the smart access system with push button start, the wireless door lock control function and the engine immobilizer function to be operated
    • Code registration is necessary when the certification ECU (smart key ECU assembly), ID code box (immobilizer code ECU), steering lock ECU, or key is replaced with a new one
    1. Vehicles with the smart access system with push button start do not have a key slot Therefore, hold the key close to the engine switch to register the key, as shown in the illustration
      Fig 1: Identifying Logo Mark
      G05754489Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. PART REPLACEMENT AND KEY REGISTRATION 
    1. The following table shows ECU replacement and key registration procedures for cases in which a malfunctioning ECU has been identified through the troubleshooting of the smart access system with push button start

      HINT

      • The following procedures can be performed.

        New key ID registration

        Additional key ID registration

        Key ID erasure

        All key ID erasure

        ECU code registration

      • If the customer has not brought all the registered keys, replacement of the ID code box (immobilizer code ECU) is also required
      • A maximum of 7 keys can be registered
      REFERENCE CHART

      Part to be Replaced Condition Procedure Reference
      Certification ECU (Smart key ECU assembly) Customer has brought all keys 1 Replace certification ECU (smart key ECU assembly) -
      2 Reregister all keys (New key ID registration) PROCEDURE "B"
      Some keys are lost Key ID codes can be registered and erased 1 Erase key codes (Key ID erasure) PROCEDURE "D"
      2 Perform additional key registration procedure (Additional key ID registration) PROCEDURE "C"
      3 Replace certification ECU (smart key ECU assembly) -
      4 Reregister all keys (New key ID registration)
      HINT
      If some keys are not registered during the above steps, they will be disabled because they cannot be registered later      		 PROCEDURE "B"
      Key ID codes cannot be either registered or erased 1 Replace certification ECU (smart key ECU assembly) -
      2 Replace ID code box (immobilizer code ECU) -
      3 Reregister all keys (New key ID registration)
      HINT
      If key codes cannot be erased or additional keys cannot be registered due to a malfunction in the certification ECU (smart key ECU assembly), replace the ID code box (immobilizer code ECU) and certification ECU (smart key ECU assembly) If some keys are not registered during the above steps, they will be disabled because they cannot be registered later      		 PROCEDURE "A"
      4 Register ECU communication ID PROCEDURE "G"
      All keys are lost 1 Replace certification ECU (smart key ECU assembly) -
      2 Replace ID code box (immobilizer code ECU) -
      3 Reregister all keys (New key ID registration)
      HINT
      If key codes cannot be erased or additional keys cannot be registered due to a malfunction in the certification ECU (smart key ECU assembly), replace the ID code box (immobilizer code ECU) and certification ECU (smart key ECU assembly) If some keys are not registered during the above steps, they will be disabled because they cannot be registered later      		 PROCEDURE "A"
      4 Register ECU communication ID PROCEDURE "G"
      ID code box (Immobilizer code ECU) Customer has brought at least 1 key 1 Replace ID code box (immobilizer code ECU) -
      2 Register recognition codes in ECUs (ECU code registration) PROCEDURE "F"
      3 Register ECU communication ID PROCEDURE "G"
      All keys are lost 1 Replace ID code box (immobilizer code ECU) -
      2 Replace certification ECU (smart key ECU assembly) -
      3 Reregister all keys (New key ID registration)
      HINT
      If some keys are not registered during the above steps, they will be disabled because they cannot be registered later      		 PROCEDURE "A"
      4 Register ECU communication ID PROCEDURE "G"
      Steering lock ECU Customer has brought at least 1 key 1 Replace steering lock ECU -
      2 Register recognition codes in ECUs (ECU code registration) PROCEDURE "F"
      All keys are lost 1 Replace steering lock ECU -
      2 Replace certification ECU (smart key ECU assembly) -
      3 Replace ID code box (immobilizer code ECU) -
      4 Reregister all keys (New key ID registration)
      HINT
      If some keys are not registered during the above steps, they will be disabled because they cannot be registered later      		 PROCEDURE "A"
      5 Register ECU communication ID PROCEDURE "G"
      Power source control ECU No condition required Replace power source control ECU -
      ECM No condition required 1 Replace ECM -
      2 Register ECU communication ID PROCEDURE "G"
      Key (for replacement) Customer has brought at least 1 key 1 Using remaining key, erase lost key code (Key ID erasure) PROCEDURE "D"
      2 Register additional keys as necessary (Additional key ID registration) PROCEDURE "C"
      All keys are lost 1 Erase all key codes (All key ID erasure) PROCEDURE "E"
      2 Register all keys (New key ID registration)
      HINT
      If the customer brings lost keys at a later date, they can be registered using the additional key ID registration function      		 PROCEDURE "A"
      Key (for addition) Customer has brought at least 1 key
      HINT
      When adding keys (Additional registration)      		 1 Register additional keys as necessary (Additional key ID registration) PROCEDURE "C"
  3. KEY REGISTRATION 
    1. PROCEDURE "A"

      New key ID registration (when replacing the certification ECU (smart key ECU assembly) and ID code box (immobilizer code ECU), or when replacing the certification ECU (smart key ECU assembly), ID code box (immobilizer code ECU) and steering lock ECU)

      REFERENCE CHART

      Process Procedure
      1 Start of registration
      1. Connect the Techstream to DLC3
      2. Turn engine switch on (IG)
      3. Enter the following menus Body Electrical / Smart Key / Utility / Smart Code Registration

      HINT
      The engine switch cannot be turned on (IG) more than 10 times After connecting the Techstream, turn the Techstream on while turning the driver side door courtesy light switch on and off repeatedly at 1 5-second intervals or less to continue key registration procedure
      2 Confirmation of ECU code Perform operation according to prompts on the Techstream screen
      HINT
      Mode is automatically selected by the Techstream (new registration mode or add mode)
      3 Verification of unregistered key(1)
      1. Hold the unregistered key close to the engine switch (For details, refer to  1"Description of Code Registration")
      2. Confirm that the wireless door lock buzzer sounds once (short beep)
      3. Place the unregistered key on the driver's seat
      4. Confirm that the wireless door lock buzzer sounds once (short beep)
      4 Registration of ID code Perform operation according to prompts on the Techstream screen
      5 End of registration Finish new key ID code registration
      (1) Repeat this process for each key which is to be registered for the vehicle Finish the procedure for each key within 30 seconds. If the procedure for any of the keys has not been finished within the specified time, perform the registration procedure again from process 1 Make sure that only 1 key is in the cabin during the registration procedure If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration
    2. PROCEDURE "B"

      New key ID registration (when replacing the certification ECU (smart key ECU assembly))

      REFERENCE CHART

      Process Procedure
      1 Start of registration
      1. Connect the Techstream to DLC3
      2. Turn engine switch on (IG)
      3. Enter the following menus Body Electrical / Smart Key / Utility / Smart Code Registration

      HINT
      The engine switch cannot be turned on (IG) more than 10 times After connecting the Techstream, turn the Techstream on while turning the driver side door courtesy light switch on and off repeatedly at 1 5-second intervals or less to continue key registration procedure
      2 Confirmation of ECU code Perform operation according to prompts on the Techstream screen
      HINT
      Mode is automatically selected by the Techstream (new registration mode or add mode)
      3 Confirmation of all registered keys(1)
      1. Hold the unregistered key close to the engine switch (For details, refer to  1"Description of Code Registration")
      2. Confirm that the wireless door lock buzzer sounds once (short beep)
      4 Confirmation of ECU code Perform operation according to prompts on the Techstream screen
      5 Verification of unregistered key(2)
      1. Hold the unregistered key close to the engine switch (For details, refer to  1"Description of Code Registration")
      2. Confirm that the wireless door lock buzzer sounds once (short beep)
      3. Place the unregistered key on the driver's seat
      4. Confirm that the wireless door lock buzzer sounds once (short beep)
      5 Registration of ID code Perform operation according to prompts on the Techstream screen
      6 End of registration Finish new key ID code registration
      (1) Repeat this process for each key registered for the vehicle Finish the procedure for each key within 30 seconds. If the procedure for any of the keys has not been finished within the specified time, perform the registration procedures again from process 1 If the key confirmation procedure for a key is performed, the security indicator light comes on and remains on until all the keys are confirmed
      (2) Repeat this process for each key which is to be registered for the vehicle Finish the procedure for each key within 30 seconds. If the procedure for any of the keys is not finished within the specified time, perform the registration procedures again from 1 Make sure that only 1 key is in the cabin during the registration procedures If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration
    3. PROCEDURE "C"

      Additional key ID registration

      REFERENCE CHART

      Process Procedure
      1 Start of registration
      1. Connect the Techstream to DLC3
      2. Turn engine switch on (IG)
      3. Enter the following menus Body Electrical / Smart Key / Utility / Smart Code Registration
      2 Confirmation of registered key(1)
      1. Perform operation according to prompts on the Techstream screen

        HINT

        Mode is automatically selected by the Techstream (new registration mode or add mode)

      2. Hold the unregistered key close to the engine switch (For details, refer to  1"Description of Code Registration")
      3. Confirm that the wireless door lock buzzer sounds once (short beep)
      3 Confirmation of ECU code Perform operation according to prompts on the Techstream screen
      4 Verification of unregistered key(2)
      1. Hold the unregistered key close to the engine switch (For details, refer to  1"Description of Code Registration")
      2. Confirm that the wireless door lock buzzer sounds once (short beep)
      3. Place the unregistered key on the driver's seat
      4. Confirm that the wireless door lock buzzer sounds once (short beep)
      5 Registration of ID code Perform operation according to prompts on the Techstream screen
      6 End of registration Finish additional key ID code registration
      (1) Perform this process for one of the keys registered for the vehicle Finish the procedure within 30 seconds If the procedure has not been finished within the specified time, perform the registration procedures again from process 1
      (2) Repeat this process for each key which is to be registered for the vehicle Finish the procedure for each key within 30 seconds. If the procedure for any of the keys is not finished within the specified time, perform the registration procedures again from 1. Make sure that only 1 key is in the cabin during the registration procedures If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration
    4. PROCEDURE "D"

      Key ID erasure

      HINT

      Erase all registered key codes except one.

      REFERENCE CHART

      Process Procedure
      1 Start of erasure
      1. Connect the Techstream to DLC3
      2. Turn engine switch on (IG)
      3. Enter the following menus Body Electrical / Smart Key / Utility / Smart Code Erasure
      2 Confirmation of registered key(1)
      HINT
      Select the key that will not be erased
      1. Perform operation according to prompts on the Techstream screen
      2. Hold the registered key close to the engine switch (For details, refer to  1"Description of Code Registration")
      3. Confirm that the wireless door lock buzzer sounds once (short beep)
      3 Confirmation of ECU code Perform operation according to prompts on the Techstream screen
      4 Erasure of ID code Perform operation according to prompts on the Techstream screen
      5 End of erasure Finish key ID code erasure
      (1) Perform this process for one of the keys registered for the vehicle Finish the procedure within 30 seconds If the procedure has not been finished within the specified time, perform the erasure procedures again from process 1
    5. PROCEDURE "E"

      All key ID erasure

      HINT:

      All the key codes registered in the vehicle are erased

      REFERENCE CHART

      Process Procedure
      1 Start of erasure
      1. Connect the Techstream to DLC3
      2. Turn engine switch on (IG)
      3. Turn the Techstream on while turning driver side door courtesy light switch on and off repeatedly at 1 5-second intervals or less
      4. Enter the following menus Body Electrical / Smart Key / Utility / Smart Code Reset
      2 Confirmation of ECU code Perform operation according to prompts on the Techstream screen
      3 Erasure of ID code Perform operation according to prompts on the Techstream screen
      4 End of erasure Finish key ID code erasure
    6. PROCEDURE "F"

      ECU code registration

      REFERENCE CHART

      Process Procedure
      1 Start of registration
      1. Connect the Techstream to DLC3
      2. Turn engine switch on (IG)
      3. Enter the following menus Body Electrical / Smart Key / Utility / ECU Communication ID Registration
      2 Confirmation of registered key(1)
      1. Hold the registered key close to the engine switch (For details, refer to  1"Description of Code Registration")
      2. Confirm that the wireless door lock buzzer sounds once (short beep)
      3 Registration of ECU code Perform operation according to prompts on the Techstream screen
      4 End of registration Finish ECU code registration
      (1) Perform this process for one of the keys registered for the vehicle Finish the procedure within 30 seconds If the procedure has not been finished within the specified time, perform the erasure procedures again from process 1
    7. PROCEDURES"

      ECU communication ID registration

      NOTE:
      • The ECU communication ID should be registered when the ID code box (immobilizer code ECU) and/or the ECM is replaced in order to match these ECU communication IDs.
      • The engine cannot be started unless the ECU communication IDs match.
      • After the registration, pressing the engine switch may not start the engine on the first try. If so, press the engine switch again.
      • Erase DTC B2799 (code for ECM's immobilizer communication error) by either of the following:
        • Use the Techstream.
        • Disconnect the battery for 30 seconds.
      1. Using SST, connect terminals TC and CG of the DLC3

        SST 09843-18040 

        Fig 2: Identifying DLC3 Connector Terminal
        G05412991Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Turn the engine switch on (IG) and leave it as is for 30 minutes

        HINT.

        Do not start the engine.

      3. Turn the engine switch off and disconnect terminals TC and CG
      4. Check that the engine starts and stays running for more than 3 seconds
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