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Engine Immobilizer System (W/Smart Entry System) - Diagnostics: Registration

HINT:

The key has 3 codes: the key code (immobilizer code), the smart code and wireless code. All of these code types need to be registered. Refer to the following pages for key code registration procedures refer to REGISTRATION for the smart code (wireless code) registration procedures.

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

        Target ECU See Step
        Transponder key ECU 3
    2. When replacing the transponder key ECU (new registration).
      1. Register the key code (immobilizer code) in the transponder key ECU.
        CODE REGISTRATION REFERENCE

        Target ECU See Step
        Transponder key ECU 2
      2. Register the ECU COMMUNICATION ID to be used between the hybrid vehicle control ECU and the transponder key ECU.
        CODE REGISTRATION REFERENCE

        Target ECU See Step
        Hybrid vehicle control ECU 5
      3. Register the ECU COMMUNICATION ID to be used between the smart ECU and the transponder key ECU.
        CODE REGISTRATION REFERENCE

        Target ECU See Step
        Smart ECU 6
    3. When replacing the smart ECU.
      1. Register the ECU COMMUNICATION ID to be used between the smart ECU and the transponder key ECU.
        CODE REGISTRATION REFERENCE

        Target ECU See Step
        Transponder key ECU 6
    4. When replacing the hybrid vehicle control ECU.
      1. Register the ECU COMMUNICATION ID to be used between the hybrid vehicle control ECU and the transponder key ECU.
        CODE REGISTRATION REFERENCE

        Target ECU See Step
        Transponder key ECU 7
    5. When replacing the transponder key ECU, smart ECU and hybrid vehicle control ECU at the same time.
      1. Register the key code (immobilizer code) in the transponder key ECU.
        CODE REGISTRATION REFERENCE

        Target ECU See Step
        Transponder key ECU 2
      2. Register the ECU COMMUNICATION ID to be used between the hybrid vehicle control ECU and the transponder key ECU.
        CODE REGISTRATION REFERENCE

        Target ECU See Step
        Hybrid vehicle control ECU 5
      3. Register the ECU COMMUNICATION ID to be used between the smart ECU and the transponder key ECU.
        CODE REGISTRATION REFERENCE

        Target ECU See Step
        Smart ECU 6
      4. Register the ECU COMMUNICATION ID to be used between the hybrid vehicle control ECU and the transponder key ECU.
        CODE REGISTRATION REFERENCE

        Target ECU See Step
        Transponder key ECU 7
    6. When erasing the key codes.
      1. Erase the key codes.
        CODE REGISTRATION REFERENCE

        Target ECU See Step
        Transponder key ECU 4
  2. KEY REGISTRATION IN AUTOMATIC REGISTRATION (NEW REGISTRATION) 
    1. When a key is inserted into the key slot, the key code (immobilizer code) registration is automatic. In this mode, a maximum of 2 key codes for 2 master keys can be registered.

      HINT:

      • When a new transponder key ECU is installed, key codes (immobilizer codes) must be registered in the new transponder key ECU.
      • A new transponder key ECU is automatically set to automatic key code registration mode.

        Automatic Key Code Registration (New Registration) 

        Fig 1: Automatic Key Code Registration - Flow Chart
        G02617725Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      • When no key is inserted in the key slot in automatic key code registration mode, the security indicator remains ON.
      • When the immobilizer system is operating normally and the key is pulled out, the security indicator starts flashing.
      • If the key code registration has failed in automatic key code registration mode, code 2-1 will be output from the security indicator. Trying to re-register an already registered key will cause code 2-2 to be output when the key is inserted. If the number of registered key codes exceeds the limit, code 2-3 will be output from the security indicator. The output details are shown below.

        Security Indicator: 

        Fig 2: Identifying Security Indicator Starts Flashing
        G02617726Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Finish the automatic key code registration mode.

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

      1. Insert the already registered master key into the key slot. Turn the power switch from ON (IG) to OFF repeatedly 5 times within 10 seconds.
  3. REGISTRATION OF ADDITIONAL KEY (ADDITIONAL REGISTRATION 
    1. Register an additional key by using the hand-held tester.

      HINT:

      • A maximum of 5 master key codes can be registered.
      • Registration mode will end if each step is not completed within the specified time.

        Additional Registration 

        Fig 3: Additional Registration - Flow Chart
        G02617727Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      • A brief outline of procedures for key code registration is shown on this page. For more detailed information, please refer to the hand-held tester screen's instructions.
      • When the immobilizer system is operating normally and the key is pulled out, the security indicator starts blinking.
      • If the key code registration has failed in automatic key code registration mode, code 2-1 will be output from the security indicator. Trying to re-register an already registered key will cause code 2-2 to be output when the key is inserted. If the number of registered key codes exceeds the limit, code 2-3 will be output from the security indicator. The output details are shown in step 2 (new registration).
  4. ERASURE OF KEY CODE 
    1. Erase key codes using the hand-held tester.

      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, the key's code must be re-registered.
      • Registration will be cancelled if each step is not completed within the specified time.

        Erasing Key Code 

        Fig 4: Erasing Key Code - Flow Chart
        G02617728Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      • A brief outline of procedures for key code erasure is shown on this page. For more detailed information, please refer to the hand-held tester screen's instructions.
      • When the immobilizer system is operating normally and the key is pulled out, the security indicator starts blinking.
  5. ECU COMMUNICATION ID REGISTRATION 
    NOTE:
    • The ECU communication ID should be registered when the transponder key ECU and/or the hybrid vehicle control ECU is replaced in order to match the HYBRID VEHICLE CONTROL ECU COMMUNICATION ID. 
    • The hybrid vehicle control system cannot be started unless the HYBRID VEHICLE CONTROL ECU COMMUNICATION ID matches. 
    • When the transponder key ECU has been replaced, do not turn the power switch from ON to OFF 20 times or more consecutively. The ECU COMMUNICATION ID must be registered before such an occurrence or the transponder key ECU will need to be replaced. If the transponder key ECU is unable to recognize the hybrid vehicle control ECU, the hybrid vehicle control system will be unable to be started. If the transponder key ECU cannot recognize the hybrid vehicle control ECU, the transponder key ECU must be replaced again with a new one. 
    • After the registration, pressing the power switch may not start the system on the first try. If so, press the power switch again. 
    • After the hybrid vehicle control system is started, erase DTC B2799 (code for hybrid vehicle control ECU's immobilizer communication error) using either of the following: Use the hand-held tester (SEE DTC CHECK/CLEAR  ).

      Disconnect the battery for 30 seconds.

    1. Register the ECU communication ID.
      Fig 5: Connecting Terminals TC And CG Of DLC3
      G02617729Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using SST, connect terminals TC and CG of the DLC3. SST 09843-18040
      2. Turn the power switch ON (IG) (do not start the engine) and leave it as is for 30 minutes.
      3. Turn the power switch OFF and disconnect terminals TC and CG.
      4. Check that the hybrid vehicle control system starts.
  6. ECU COMMUNICATION ID REGISTRATION 

    ECU Communication ID REGISTRATION 

    Fig 6: ECU Communication ID Registration - Flow Chart
    G02617730Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT:

    • A brief outline of procedures for key code registration is shown on this page. For more detailed information, please refer to the hand-held tester screen's instructions.
    • When the immobilizer system is operating normally and the key is pulled out, the security indicator blinks continuously.
  7. ECU COMMUNICATION ID REGISTRATION 
    NOTE:
    • The ECU communication ID should be registered when the hybrid vehicle control ECU is replaced in order to match the HYBRID VEHICLE CONTROL ECU COMMUNICATION ID. 
    • The hybrid vehicle control system cannot be started unless the HYBRID VEHICLE CONTROL ECU COMMUNICATION ID matches. 

    ECU Communication ID Registration 

    Fig 7: ECU Communication ID Registration - Flow Chart
    G02617731Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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