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Engine Immobilizer System: Registration

  1. DESCRIPTION OF CODE REGISTRATION 

    HINT:

    • 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 needed when the certification ECU, immobilizer code ECU, steering lock ECU or key is replaced with a new one.
    1. This vehicle does not have a key slot. Therefore, hold the key close the engine switch to register the key, as shown in the illustration below.
  2. PART REPLACEMENT AND KEY REGISTRATION PROCEDURES 
    1. The following table shows ECU replacement and key registration procedures in case the malfunctioning ECU has been specified after troubleshooting the smart access system with push-button start.

      HINT:

      • The following procedures indicated in the table below require the use of the intelligent tester:

        New key ID registration

        Additional key ID registration

        Key ID erasure

        ECU code registration

      • If all of the registered keys are not available, replacement of the immobilizer code ECU is also required.
      • A maximum of 7 keys can be registered.
        Fig 1: Identifying Engine Switch
        G04021425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    CONDITION PROCEDURE CHART

    Part to be replaced Condition Procedure
    Certification ECU Customer has brought all keys
    1. Replace certification ECU
    2. Reregister all keys (new key ID registration)
    Some keys are lost Key ID codes can be registered and erased
    1. Erase key codes (key ID erasure)
    2. Perform additional key registration procedure (additional key ID registration)
    3. Replace certification ECU
    4. Reregister all keys (new key ID registration)

    HINT:
    If some keys are not registered during above steps, they will be disabled because they cannot be registered later
    Key ID codes cannot be either registered or erased
    1. Replace certification ECU
    2. Replace 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 certification ECU, replace immobilizer code ECU and certification ECU. If some keys are not registered during above steps, they will be disabled because they cannot be registered later
    Immobilizer code ECU At least 1 key is available
    1. Replace immobilizer code ECU
    2. Register recognition codes in ECUs (ECU code registration)
    All keys are lost
    1. Replace immobilizer code ECU
    2. Replace certification ECU
    3. Reregister all keys (new key ID registration)

    HINT:
    If some keys are not registered during above steps, they will be disabled because they cannot be registered later
    Steering lock ECU Customer has brought at least 1 key
    1. Replace steering lock ECU
    2. Register recognition codes in ECUs (ECU code registration)
    All keys are lost
    1. Replace steering lock ECU
    2. Replace certification ECU
    3. Replace immobilizer code ECU
    4. Reregister all keys (new key ID registration)

    HINT:
    If some keys are not registered during above steps, they will be disabled because they cannot be registered later
    Power Source Control ECU No condition required Replace power source control ECU
    ECM No condition required
    1. Replace ECM
    2. Using SST (09843-18040) connect terminals TC and CG of DLC3
    3. Turn ignition switch on (IG) and leave it as is for 30 minutes
    Key Customer has brought at least 1 key
    1. Using remaining key, erase lost key (key ID erasure)
    2. Register additional keys as necessary (additional key ID registration)
    Customer does not have key
    1. Erase key codes (all key ID erasure)
    2. Register all keys (new key ID registration)

    HINT:
    If customer brings lost keys at later date, they can be registered using additional key ID registration function
  3. KEY REGISTRATION PROCEDURES 
    1. New key ID registration (when replacing certification ECU and immobilizer code ECU, or certification ECU, immobilizer code ECU and steering lock ECU)
      PROCESS AND PROCEDURE CHART

      Process Procedure
      1. Start of registration
      1. Connect intelligent tester (with CAN VIM) to DLC3
      2. Turn engine switch on (IG)
      3. Select "SMART ACCESS / ID UTILITY / SMART CODE REG" from tester menu

      HINT:
      Engine switch cannot be turned on (IG) more than 10 times. After connecting tester, turn tester on while turning 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 tester screen
      HINT:
      Mode is automatically selected by tester, new registration mode or add more
      3. Verification of unregistered key *1
      1. Hold unregistered key close to engine switch
      2. Confirm that wireless door lock buzzer sounds Place unregistered key on front passenger side seat
      3. Confirm that wireless door lock buzzer sounds.
      4. Registration of ID code Perform operation according to prompts on tester 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 registration procedures from process 1 again. Make sure that only 1 key is in the cabin during registration procedures. If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration.

    2. New key ID registration (when replacing certification ECU)
      PROCESS AND PROCEDURE CHART

      Process Procedure
      1. Start of registration
      1. Connect intelligent tester (with CAN VIM) to DLC3
      2. Turn engine switch on (IG)
      3. Select "SMART ACCESS / ID UTILITY / SMART CODE REG" from tester menu

      HINT:
      Engine switch cannot be turned on (IG) more than 10 times. After connecting tester, turn tester on while turning 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 tester screen
      HINT:
      Mode is automatically selected by tester, new registration mode or add more
      3. Confirmation of all registered keys *1
      1. Hold registered key close to engine switch
      2. Confirm that wireless door lock buzzer sounds.
      4. Confirmation of ECU code Perform operation according to prompts on tester screen
      5. Verification of unregistered key *2
      1. Hold unregistered key close to engine switch
      2. Confirm that wireless door lock buzzer sounds Place unregistered key on front passenger side seat
      3. Confirm that wireless door lock buzzer sounds.
      5. Registration of ID code Perform operation according to prompts on tester 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 registration procedures from process 1 again. If performing the key confirmation procedure for a key, the security indicator 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 has not been finished within the specified time, perform registration procedures from 1 again. Make sure that only 1 key is in the cabin during registration procedures. If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration.

    3. Additional key ID registration
      PROCESS AND PROCEDURE CHART

      Process Procedure
      1. Start of registration
      1. Connect intelligent tester (with CAN VIM) to DLC3
      2. Turn engine switch on (IG)
      3. Select "SMART ACCESS / ID UTILITY / SMART CODE REG" from tester menu
      2. Confirmation of registered key *1
      1. Perform operation according to prompts on tester screen
      2. Hold registered key close to engine switch
      3. Confirm that wireless door lock buzzer sounds
      3. Confirmation of ECU code Perform operation according to prompts on tester screen
      4. Verification of unregistered key *2
      1. Hold unregistered key close to engine switch
      2. Confirm that wireless door lock buzzer sounds Place unregistered key on front passenger side seat
      3. Confirm that wireless door lock buzzer sounds.
      5. Registration of ID code Perform operation according to prompts on tester screen
      6. End of registration Finish 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 registration procedures from process 1 again.

      *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 has not been finished within the specified time, perform registration procedures from 1 again. Make sure that only 1 key is in the cabin during registration procedures. If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration.

    4. Key ID erasure (Erase all registered key codes except one)
      PROCESS AND PROCEDURE CHART

      Process Procedure
      1. Start of erasure
      1. Connect intelligent tester (with CAN VIM) to DLC3
      2. Turn engine switch on (IG)
      3. Select "SMART ACCESS / ID UTILITY / SMART CODE ERS" from tester menu
      2. Confirmation of registered key *1
      1. Perform operation according to prompts on tester screen
      2. Hold registered key close to engine switch
      3. Confirm that wireless door lock buzzer sounds
      3. Confirmation of ECU code Perform operation according to prompts on tester screen
      4. Erasure of ID code Perform operation according to prompts on tester screen
      5. End of erasure Finish key ID code erasure

      *1: Perform this process for on 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 erasure procedures from process 1 again.

    5. All keys ID erasure
      PROCESS AND PROCEDURE CHART

      Process Procedure
      1. Start of erasure
      1. Connect intelligent tester (with CAN VIM) to DLC3
      2. Turn engine switch on (IG)
      3. Turn tester on while turning driver side door courtesy light switch on and off repeatedly at 1.5 second intervals or less
      4. Select "SMART ACCESS / ID UTILITY / SMART CODE RESET" from tester menu
      5. Read "SEED NUMBER" sent from TAS according to tester screen
      2. Confirmation of registered key Hold registered key close to engine switch
      3. Erasure of ID code Perform operation according to prompts on tester screen
      4. End of erasure Finish key ID code erasure
    6. ECU code registration
      PROCESS AND PROCEDURE CHART

      Process Procedure
      1. Start of registration
      1. Connect intelligent tester (with CAN VIM) to DLC3
      2. Turn engine switch on (IG)
      3. Select "SMART ACCESS / ID UTILITY / ECU COMM ID REG / ID Code Box and Steering Lock" from tester menu
      4. Read "SEED NUMBER" sent from TAS according to tester screen
      2. Confirmation of registered key Hold registered key close to engine switch
      3. Erasure of ECU code Perform operation according to prompts on tester screen
      4. End of registration Finish ECU code registration
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