Toyota Yaris: Smart Key System (for Start Function) / Registration

Toyota Yaris XP210 (2020-2024) Reapir and Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Smart Key System (for Start Function) / Registration

REGISTRATION

PROCEDURE

1. REPAIR INSTRUCTION

CAUTION:

As weak radio waves are emitted from the electrical key transmitter sub-assembly, if a pacemaker is being used, be sure to read the pacemaker instruction manual and the following.

  • People with implantable cardiac pacemakers, cardiac resynchronization therapy-pacemakers or implantable cardioverter defibrillators should keep away from the Smart Key system antennas. The radio waves may affect the operation of such devices. If necessary, the entry function can be disabled. Ask your dealer for details, such as the frequency of radio waves and timing of the emitted radio waves. Then, consult your doctor to see if you should disable the entry function.

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  • User of any electrical medical device other than implantable cardiac pacemakers, cardiac resynchronization therapy-pacemakers or implantable cardioverter defibrillators should consult the manufacturer of the device for information about its operation under the influence of radio waves. Radio waves could have unexpected effects on the operation of such medical devices.
  • Ask your dealer for details for disabling the entry function.

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NOTICE:

PRECAUTION WHEN REPLACING PARTS

  • Code registration is necessary when any of the following parts is replaced with a new one. After replacing a part, any part that has performed registration cannot be returned.
    • Certification ECU (smart key ECU assembly)
    • ID code box (immobiliser code ECU)
    • Steering lock ECU (steering lock actuator or upper bracket assembly)
    • Electrical key transmitter sub-assembly
    • Main body ECU (multiplex network body ECU)

PRECAUTION FOR REGISTRATION

  • Make sure that only 1 electrical key transmitter sub-assembly is in the cabin during registration procedures. If 2 or more electrical key transmitter sub-assemblies are in the cabin simultaneously, the electric waves will interfere with each other, preventing normal registration.
  • A maximum of 4 electrical keys can be registered (this includes any electrical keys registered when the vehicle was purchased).
  • If the battery is depleted during the electrical key transmitter sub-assembly registration procedure, there may be cases in which the electrical key transmitter sub-assembly cannot be registered again. Therefore, make sure to perform work with a sufficiently charged battery.
  • If any of the work times are exceeded, finish the procedure.
  • Do not disconnect the battery during the Registration.
  • Do not perform operations that create an electrical load such as operating the power windows.
  • If "Smart Key System" is canceled, registration cannot be performed.

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2. EXPLANATION OF IMMOBILISER KEY ID REGISTRATION PROCEDURE

(a) Addressing customer requests (perform work in chart below in order starting from left)

Customer Request/Condition

Undesignated key permanent erasure

Replace certification ECU

Replace ID code box

New key ID registration

Additional key ID registration

ECU communication ID registration

Refer to PROCEDURE

"5"

"3"

"4"

"7"

All electrical key transmitter sub-assemblies are lost

-

-

Registering additional electrical key transmitter sub-assembly

-

-

-

-

-

Making a lost electrical key transmitter sub-assembly unusable

-

-

-

-

-

(b) Addressing malfunctions 1 (perform work in chart below in order starting from left)

Certification ECU (smart key ECU assembly) malfunction

Condition

(The number of the electrical key transmitter sub-assemblies customer has brought)

Undesignated key permanent erasure

Replace certification ECU (smart key ECU assembly)

Replace ID code box (immobiliser code ECU)

Replace steering lock ECU (steering lock actuator or upper bracket assembly)

New key ID registration

Additional key ID registration

ECU code registration

ECU communication ID registration

Refer to PROCEDURE

"5"

"3"

"4"

"6"

"7"

All electrical key transmitter sub-assemblies

-

-

-

-

-

-

At least 1 electrical key transmitter sub-assembly

(Key ID codes can be registered and cleared)

-

-

-

-

-

At least 1 electrical key transmitter sub-assembly

(Key ID codes cannot be either registered or cleared)

-

-

-

-

All electrical key transmitter sub-assemblies are lost

-

-

-

-

(c) Addressing malfunctions 2 (perform work in chart below in order starting from left)

ID code box (immobiliser code ECU) malfunction

Condition

(The number of the electrical key transmitter sub-assemblies customer has brought)

Undesignated key permanent erasure

Replace certification ECU (smart key ECU assembly)

Replace ID code box (immobiliser code ECU)

Replace steering lock ECU (steering lock actuator or upper bracket assembly)

New key ID registration

Additional key ID registration

ECU code registration

ECU communication ID registration

Refer to PROCEDURE

"5"

"3"

"4"

"6"

"7"

At least 1 electrical key transmitter sub-assembly

-

-

-

-

-

All electrical key transmitter sub-assemblies are lost

-

-

-

-

(d) Addressing malfunctions 3 (perform work in chart below in order starting from left)

Steering lock ECU (steering lock actuator or upper bracket assembly) malfunction

Condition

(The number of the electrical key transmitter sub-assemblies customer has brought)

Undesignated key permanent erasure

Replace certification ECU (smartkey ECU assembly)

Replace ID code box (immobiliser code ECU)

Replace steering lock ECU (steering lock actuator or upper bracket assembly)

New key ID registration

Additional key ID registration

ECU code registration

ECU communication ID registration

Refer to PROCEDURE

"5"

"3"

"4"

"6"

"7"

At least 1 electrical key transmitter sub-assembly

-

-

-

-

-

-

All electrical key transmitter sub-assemblies are lost

-

-

-

(e) Addressing malfunctions 4 (perform work in chart below in order starting from left)

Electrical key transmitter sub-assemblies malfunction

Condition

(The number of the electrical key transmitter sub-assemblies customer has brought)

Undesignated key permanent erasure

Replace certification ECU

Replace ID code box

Replace steering lock ECU

New key ID registration

Additional key ID registration

ECU code registration

ECU communication ID registration

Refer to PROCEDURE

"5"

"3"

"4"

"6"

"7"

One or more electrical key transmitter sub-assembly that operates normally

-

-

-

-

-

-

All electrical key transmitter sub-assembly lost or any electrical key transmitter sub-assembly does not operate normally

-

-

-

-

(f) Addressing malfunctions 5 (perform work in chart below in order starting from left)

Malfunctioning ECU

Condition

Replace ECM

Replace main body ECU (multiplex network body ECU)

ECU code registration

ECU communication ID registration

Refer to PROCEDURE

"6"

"7"

ECM

When replacing a new one

-

-

-

When replacing a used one

-

-

Main body ECU (multiplex network body ECU)

When replacing a new one

-

-

3. NEW KEY ID REGISTRATION

NOTICE:

  • When the certification ECU (smart key ECU assembly) is replaced, register all electrical key transmitter sub-assemblies used by the customer.
  • Registered electrical key transmitter sub-assemblies other than those registered during the certification ECU (smart key ECU assembly) replacement cannot be re-registered, and therefore they can no longer be used.
  • Immediately after replacing the certification ECU (smart key ECU assembly), the GTS item "Number of Registered Codes" should change to "0". If this item does not change to "0", the certification ECU (smart key ECU assembly) may be registered to another vehicle. A certification ECU (smart key ECU assembly) which is registered to another vehicle cannot be used.

Process

Procedure

Time limit

(seconds)

1. Start of registration
  1. Ignition switch off.
  2. Connect the GTS to the DLC3.
  3. Turn the ignition switch to ON.

    HINT:

    The ignition switch cannot be turned to ON more than 10 times. To continue electrical key transmitter sub-assembly registration procedure with the ignition switch off, use the method below:

    • When using the GTS with the ignition switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins.
  4. Turn the GTS on.
  5. Enter the following menus: Body Electrical / Smart Key / Utility / Smart Code Registration

-

2. Get Pass-Code
  1. According to the display on the GTS, obtain the Pass-Code using online authentication or proxy authentication.

    NOTICE:

    After obtaining the Pass-Code, do not turn off the GTS until registration is completed. If the GTS is turned off before registration is completed, obtain the Pass-Code once more.

-

3. Confirmation of all registered electrical key transmitter sub-assemblies

(When only the certification ECU (smart key ECU assembly) is replaced)
  1. While facing the logo side of a registered electrical key transmitter sub-assembly toward the power switch, hold the electrical key transmitter sub-assembly near power switch.
  2. Confirm that the wireless door lock buzzer sounds once (short beep).
  3. Repeat procedure 1 and 2 of this process for all the previously registered electrical key transmitter sub-assemblies.

HINT:

When performing the electrical key transmitter sub-assembly confirmation procedure the security indicator light comes on and remains on until all the electrical key transmitter sub-assemblies are confirmed.

30

4. Verification of unregistered electrical key transmitter sub-assembly
  1. While facing the logo side of an unregistered electrical key transmitter sub-assembly toward the power switch, hold the electrical key transmitter sub-assembly near the power switch.
  2. Confirm that the wireless door lock buzzer sounds twice (short beep).
  3. Repeat procedure 1 and 2 of this process for all electrical key transmitter sub-assemblies to register.

30

5. End of registration

Finish new key ID code registration.

-

4. ADDITIONAL KEY ID REGISTRATION

NOTICE:

If an electrical key transmitter sub-assembly has recently been registered, the new key registration warning message will be displayed on the multi-information display and cannot be cleared for 10 days.*

This message is displayed to inform the user that an electrical key transmitter sub-assembly has been registered and help prevent the vehicle from being stolen if the registration was unauthorized.

  • *: Display of the warning message will be suspended when any of the following conditions is met:
    • The warning message has been displayed for 60 seconds.
    • All of the doors are closed and locked.
    • Ignition switch is turned to ON.

Process

Procedure

Time limit

(seconds)

1. Start of registration
  1. Ignition switch off.
  2. Connect the GTS to the DLC3.
  3. Turn the ignition switch to ON.

    HINT:

    The ignition switch cannot be turned to ON more than 10 times. To continue electrical key transmitter sub-assembly registration procedure with the ignition switch off, use the method below:

    • When using the GTS with the ignition switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins.
  4. Turn the GTS on.
  5. Enter the following menus: Body Electrical / Smart Key / Utility / Smart Code Registration

-

2. Get Pass-Code
  1. According to the display on the GTS, obtain the Pass-Code using online authentication or proxy authentication.

    NOTICE:

    After obtaining the Pass-Code, do not turn off the GTS until registration is completed. If the GTS is turned off before registration is completed, obtain the Pass-Code once more.

-

3. Confirmation of registered electrical key transmitter sub-assemblies
  1. While facing the logo side of a registered electrical key transmitter sub-assembly toward the power switch, hold the electrical key transmitter sub-assembly near power switch.
  2. Confirm that the wireless door lock buzzer sounds once (short beep).

HINT:

When checking registered electrical key transmitter sub-assemblies, check using an electrical key transmitter sub-assembly that is registered to the vehicle.

30

4. Verification of unregistered electrical key transmitter sub-assembly
  1. While facing the logo side of an unregistered electrical key transmitter sub-assembly toward the power switch, hold the electrical key transmitter sub-assembly near the power switch.
  2. Confirm that the wireless door lock buzzer sounds twice (short beep).
  3. Repeat procedure 1 and 2 of this process for all electrical key transmitter sub-assemblies to register.

30

5. End of registration

Finish additional key ID code registration.

-

5. UNDESIGNATED KEY PERMANENT ERASURE

NOTICE:

If Undesignated Key Permanent Erasure is performed, previously registered electrical key transmitter sub-assemblies cannot be re-registered, and therefore they can no longer be used.

HINT:

Undesignated Key Permanent Erasure can be used to delete and disable all key IDs other than the electrical key transmitter sub-assemblies selected during "confirmation of registered electrical key transmitter sub-assemblies to keep (process No. 3)".

Process

Procedure

Time limit

(seconds)

1. Start of erasure
  1. Ignition switch off.
  2. Connect the GTS to the DLC3.
  3. Turn the ignition switch to ON.
  4. Turn the GTS on.
  5. Enter the following menus: Body Electrical / Smart Key / Utility / Undesignated Key Permanent erasure
  6. Input the number of keys to keep and check that the number of electrical key transmitter sub-assemblies to delete is correct.

-

2. Get Pass-Code
  1. According to the display on the GTS, obtain the Pass-Code using online authentication or proxy authentication.

    NOTICE:

    After obtaining the Pass-Code, do not turn off the GTS until registration is completed. If the GTS is turned off before registration is completed, obtain the Pass-Code once more.

-

3. Confirmation of registered electrical key transmitter sub-assemblies to keep
  1. While facing the logo side of a registered electrical key transmitter sub-assembly toward the power switch, hold the electrical key transmitter sub-assembly near power switch.
  2. Confirm that the wireless door lock buzzer sounds once (short beep).

HINT:

The security indicator light illuminates when all the registered electrical key transmitter sub-assemblies to keep are confirmed.

30

4. Erasure of key ID
  1. Double-check the number of electrical key transmitter sub-assembly to delete, and then press the delete button.

-

5. Confirmation of ECU code
  1. Check that "confirmation of ECU code" is shown on the GTS.

HINT:

The security indicator light goes off when confirmation of ECU code is completed.

-

6. Erasure of ID code
  1. Check that "ID code deletion is completed" is shown on the GTS.

-

7. End of erasure

Finish key ID erasure.

-

6. ECU CODE REGISTRATION

Process

Procedure

Time limit

(seconds)

1. Start of registration
  1. Ignition switch off.
  2. Connect the GTS to the DLC3.
  3. Turn the ignition switch to ON.
  4. Turn the GTS on.
  5. Enter the following menus: Body Electrical / Smart Key / Utility / ECU Communication ID Registration / ID code box and Steering Lock

-

2. Confirmation of registered electrical key transmitter sub-assemblies
  1. While facing the logo side of a registered electrical key transmitter sub-assembly toward the power switch, hold the electrical key transmitter sub-assembly near power switch.
  2. Confirm that the wireless door lock buzzer sounds once (short beep).

HINT:

When checking registered electrical key transmitter sub-assemblies, check using an electrical key transmitter sub-assembly that is registered to the vehicle.

30

3. Registration of ECU code
  1. Perform operations according to prompts on the GTS screen.

-

4. End of registration

Finish ECU code registration.

-

7. ECU COMMUNICATION ID REGISTRATION

Process

Procedure

1. Start of registration
  1. Ignition switch off.
  2. Connect the GTS to the DLC3.
  3. Turn the ignition switch to ON.

    HINT:

    The security indicator light goes off.

  4. Turn the GTS on.
  5. Enter the following menus: Powertrain / Engine / Active Test / Activate the TC Terminal.
  6. Turn the TC terminal ON to send a TC ON forced operation request.

2. ECU communication ID registration
  1. After 30 minutes or more have elapsed, Enter the following menus: Powertrain / Engine / Active Test / Activate the TC Terminal.
  2. Turn the TC terminal OFF to send a TC ON forced operation cancellation request.
  3. Turn the ignition switch off.

    HINT:

    The security indicator light blinks.

3. Confirmation of registration
  1. Turn the ignition switch to ON.

    HINT:

    The security indicator light goes off.

  2. Check that the engine starts and stays for more than 3 seconds.

    NOTICE:

    • Do not open and close any doors. If any doors are opened and closed, start the registration over again from the procedure 1 of this process.
    • There are cases in which the engine will not start on the first attempt after completing ECU communication ID code registration. However, this is not a malfunction, as the engine can be started normally from the second start attempt.

4. Clear DTC
  1. After confirming that the engine starts, use the GTS to clear DTC B279986 "Engine Immobiliser System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid".

5. End of registration

Finish ECU communication ID registration.

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