IMMOBILISER SYSTEM(w/o Entry and Start System) Key Cannot be Registered

DTC Code DTC Name
Key Cannot be Registered

DESCRIPTION

A maximum of 5 master key ID codes and 3 sub key ID codes can be registered.

WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

  • If the transponder key ECU assembly is replaced, refer to the Service Bulletin.

  • When using the GTS with the vehicle ignition switch off, connect the GTS to the vehicle 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. Then select the Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Immobiliser. While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

PROCEDURE

  1. CHECK REGISTRATION MODE

    1. Check that the system enters registration mode.

      OK

      System enters registration mode.

    Result

    Proceed to

    OK

    NG
    NG

    INSPECT UNLOCK WARNING SWITCH ASSEMBLYClick here

    OK

  2. CHECK SECURITY INDICATOR LIGHT OPERATION

    1. In registration mode, insert the key into the ignition key cylinder and check the security indicator light.

      Tip:

      If the new key ID code registration fails, code 2-1 will be output through the security light. 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 ID codes exceeds the maximum limit, code 2-3 will be output through the security indicator light. The output details are shown in the following illustration.

      B111593C02

      *1

      Security Indicator Light

      *2

      Normal (Immobiliser system is operating normally)

      *3

      Code 2-1

      *4

      Code 2-2

      *5

      Code 2-3

      -

      -

    Result

    Result

    Proceed to

    Code 2-1 or Code 2-3 is output

    A

    Code 2-2 is output

    B
    B

    END (REGISTERED KEY WAS USED)

    A

  3. READ VALUE USING GTS (TRANSPONDER S-CODE, TRANSPONDER M-CODE)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Immobiliser / Data List.

    5. Read the Data List according to the display on the GTS.

      Body Electrical > Immobiliser > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Transponder S-code

      Number of registered sub keys

      Min.: 0, Max.: 15

      Number of registered sub keys

      -

      Transponder M-code

      Number of registered master keys

      Min.: 0, Max.: 15

      Number of registered master keys

      -

      Body Electrical > Immobiliser > Data List

      Tester Display

      Transponder S-code

      Transponder M-code

    Result

    Result

    Proceed to

    5 is displayed for "Transponder M-code" and 0 is displayed for "Transponder S-code"

    A

    0 is displayed for "Transponder M-code" and 3 is displayed for "Transponder S-code"

    B

    5 is displayed for "Transponder M-code" and 3 is displayed for "Transponder S-code"

    C

    Values are other than above

    D
    A

    KEY REGISTRATION (SUB-KEY)

    B

    KEY REGISTRATION (MASTER KEY)

    C

    MAXIMUM NUMBER OF KEYS ALREADY REGISTERED

    D

  4. KEY REGISTRATION

    1. Refer to the table below to determine if additional keys can be registered.

      Number of Keys Registered (Master and Sub)

      Proceed to

      0

      New key ID code registration

      1 to 7

      Additional key ID code registration

    2. Check if an additional key can be registered.

      OK

      Additional key can be registered.

    Result

    Proceed to

    OK

    NG
    OK

    END (KEY MALFUNCTION)

    NG

    REPLACE TRANSPONDER KEY ECU ASSEMBLY

  5. INSPECT UNLOCK WARNING SWITCH ASSEMBLY

    1. Remove the unlock warning switch assembly.

      Click here

    2. Inspect the unlock warning switch assembly.

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE UNLOCK WARNING SWITCH ASSEMBLY

    Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - UNLOCK WARNING SWITCH ASSEMBLY)

    1. Disconnect the G7 unlock warning switch assembly connector.

    2. Disconnect the G88 transponder key ECU assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G7-1 - G88-3 (KSW)

      Always

      Below 1 Ω

      G7-2 - Body ground

      Always

      Below 1 Ω

      G7-1 - Body ground

      Always

      10 kΩ or higher

      G88-3 (KSW) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK (for key registration when not using GTS)

    OK (for key registration when using GTS)

    NG
    OK (for key registration when using GTS)

    REPLACE TRANSPONDER KEY ECU ASSEMBLY

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK (for key registration when not using GTS)

  7. READ VALUE USING GTS (D DOOR COURTESY SW)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Immobiliser / Data List.

    5. Read the Data List according to the display on the GTS.

      Body Electrical > Immobiliser > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      D Door Courtesy SW

      Driver door courtesy light switch signal

      ON or OFF

      ON: Driver door open

      OFF: Driver door closed

      -

      Body Electrical > Immobiliser > Data List

      Tester Display

      D Door Courtesy SW

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE TRANSPONDER KEY ECU ASSEMBLY

    NG

  8. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH

    1. Remove the front door courtesy light switch assembly LH.

      Click here

    2. Inspect the front door courtesy light switch assembly LH.

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH

    Click here

    OK

  9. CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - TRANSPONDER KEY ECU ASSEMBLY)

    1. Disconnect the N6 front door courtesy light switch assembly LH connector.

    2. Disconnect the G88 transponder key ECU assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      N6-1 - G88-7 (CTY)

      Always

      Below 1 Ω

      N6-1 - Body ground

      Always

      10 kΩ or higher

      G88-7 (CTY) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE TRANSPONDER KEY ECU ASSEMBLY

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR