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

DESCRIPTION

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

WIRING DIAGRAM

Refer to "System Diagram" Click here.

CAUTION / NOTICE / HINT

Note

When replacing the key and transponder key ECU assembly, refer to the Service Bulletin.

PROCEDURE


  1. CHECK REGISTRATION MODE


    1. Check that the system enters registration mode.

      OK
      System enters registration mode

    NG

    INSPECT UNLOCK WARNING SWITCH ASSEMBLY Click here

    OK

  2. CHECK SECURITY INDICATOR LIGHT OPERATION


    1. In registration mode, when the key is inserted in the ignition key cylinder, check that the security indicator light blinks in the normal pattern shown below.

      Tech Tips

      If the new key code registration fails, code 2-1 will be output through the security indicator light. Trying to reregister 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 maximum limit, code 2-3 will be output through the security indicator light. The output details are shown below.

      A01WZDIE31
      Result
      Result Proceed to
      Code 2-1 or Code 2-3 A
      Code 2-2 B

    B

    REGISTRATION AS ANOTHER KEY

    A

  3. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the intelligent tester on.

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

    5. According to the display on the intelligent tester, read the Data List.

      Immobiliser
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Transponder S-code Number of registered sub-keys / min.: 0, max.: 3 Number of registered sub-keys -
      Transponder M-code Number of registered master keys / min.: 0, max.: 5 Number of registered master keys -
      Result
      Result Proceed to
      None of the following A
      Registered master keys: 5, registered sub-keys: 0 B
      Registered master keys: 0, registered sub-keys: 3 C
      Registered master keys: 5, registered sub-keys: 3 D

    B

    KEY REGISTRATION (SUB-KEY)

    C

    KEY REGISTRATION (MASTER KEY)

    D

    NOT KEY REGISTRATION

    A

  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 registration (refer to the Service Bulletin)
      1 to 7 Additional key ID registration (refer to the Service Bulletin)

    2. Check whether key registration.


    OK

    END (KEY IS MALFUNCTIONING)

    NG

    REPLACE TRANSPONDER KEY ECU ASSEMBLY

  5. INSPECT UNLOCK WARNING SWITCH ASSEMBLY


    1. Inspect the unlock warning switch assembly Click here.


    NG

    REPLACE UNLOCK WARNING SWITCH ASSEMBLY Click here

    OK

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


    1. Disconnect the E94 unlock warning switch assembly connector.

    2. Disconnect the E96 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
      E94-1 - E96-3 (KSW) Always Below 1 Ω
      E94-2 - Body ground Always Below 1 Ω
      E94-1 - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    B

    REPLACE TRANSPONDER KEY ECU ASSEMBLY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  7. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH


    1. Inspect the front door courtesy light switch assembly LH Click here.


    NG

    REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH Click here

    OK

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


    1. Disconnect the K2 front door courtesy light switch assembly LH connector.

    2. Disconnect the E96 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
      K2-1 - E96-7 (CTY) Always Below 1 Ω
      K2-1 - Body ground Always 10 kΩ or higher

    OK

    REPLACE TRANSPONDER KEY ECU ASSEMBLY

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR