Operation Procedures

This section provides the procedures necessary to access the IMMOBILIZER KEY CODE UTILITY functions. Refer to the instructions below.

Verify Immobilizer Key Type

Before any IMMOBILIZER KEY CODE UTILITY function can be performed, the type of Transponder key must be verified. The following steps show how to verify the Transponder Key type.

1. Connect the Diagnostic Tester to DLC3 and press the (ON) key.

2. Insert a Registered Master Key (Black key Head) into the ignition key cylinder and turn to the ON position.

HINT:
A Registered Master Key is required for KEY REGISTRATION, KEY CODE ERASURE, and AUTO REGISTRATION CLOSURE. A Sub Key (Grey Key Head) will not perform these functions.





3. From the "FUNCTION SELECT" menu (Screen A), select [1: OBD/MOBD].





4. From the "OBD/MOBD MENU" (Screen B), select [6: IMMOBILIZE R].





5. From the "DIAGNOSTIC MENU IMMOBILIZER" (Screen C), select [1: CURRENT DATA]





6. From the "CURRENT DATA MENU IMMOBILIZER" (Screen D), select [1: DATA LIST].





7. From the "SELECT DATA" menu (Screen E), select [ALL].





8. The Transponder Key Type in the ignition cylinder will be displayed (Screen F).

[MASTER] = Registered Master key

[SUB] = Registered Sub Key

[NO] = Not a Registered Key, or Vehicle is not equipped with Immobilizer.

NOTE:
If the Transponder Key is a Master Key, proceed to [4: KEY CODE UTILITY] by pressing the (EXIT) key back to the "DIAGNOSTIC MENU IMMOBILIZER" (Screen C). From the "DIAGNOSTIC MENU IMMOBILIZER" (Screen C), select [4: KEY CODE UTILITY]





9. From the "KEY CODE UTILITY" menu (Screen G), the functions listed are outlined in the next sections.

Key Registration
This function allows the registration of additional Key Codes for Transponder Keys (Master/Sub Keys) using a Registered Master Key. The following screens show how to perform Key Registration.

HINT:
This function requires the use of one Registered Master Key. The use of a Sub Key will NOT complete Key Registration.





1. From the "KEY CODE UTILITY" menu (Screen A), select [1: KEY REGISTRATION].





2. Confirm the instruction on Screen B and press the (ENTER) key.





3. From the "KEY SELECTION" menu (Screen C), select the Transponder Key type to be registered and press the (ENTER) key.

NOTE:
Do not register a SUB KEY as a MASTER KEY. The SUB KEY is typically left with an attendant when the vehicle is parked. A Registered Master Key allows the user to add/ erase transponder keys.





4. From "KEY SELECTION" (Screen D), confirm the type of Transponder Key to be registered and press the (YES) key.





5. After pressing the (YES) key, remove the Registered Master Key from the Ignition Cylinder within 20 seconds. After removing the key, press the (ENTER) key.





6. Insert the New Transponder Key into the Ignition Cylinder within 10 seconds and press the (ENTER) key.

HINT:
Look at the Security Indicator Light.
It will begin to flash as the New
Transponder Key is inserted.





7. The registration of the New Transponder Key will be completed in approximately 60 seconds.

HINT:
The Security Indicator continues to flash during registration.





8. Screen H will be shown at completion of registration. Confirm the Security Indicator turns OFF and press the (ENTER) key.

HINT:
The Security Indicator will stop flashing when Key Registration is complete.





9. Insert the New Registered Master Key into the Ignition Cylinder and turn to the ON position and press the (ENTER) key.

Key Code Erasure
This function allows the user to erase all the Key Codes for Transponder Keys except the Registered Master Key used during this function. The following screens show how to perform Key Code Erasure.

HINT:
This function requires the use of one Registered Master Key. The use of a Sub Key will NOT complete Key Code Erasure.





1. From the "KEY CODE UTILITY" menu (Screen A), select [2: KEY CODE ERASURE].





2. Confirm the instruction on Screen B and press the (ENTER) key.





3. Confirm the instruction on Screen C and press the (YES) key.

NOTE:
By pressing the (YES) key, all Transponder Key Codes will be erased except the Registered Master Key in the Ignition Cylinder.

HINT:
After pressing the (YES) the Security Indicator will start to flash.





4. Pull out the Registered Master Key from the Ignition Cylinder within 10 seconds (Screen D).

HINT:
Security Indicator continues to flash.





5. If Step 4 was completed correctly, Screen E will confirm ERASURE was successful.

HINT:
If the Erasure completed, the security indicator should still be blinking.





6. Insert the Registered Master Key into the Ignition Cylinder and turn to the ON position and press the (ENTER) key.

HINT:
Look at the Security Indicator Light. Inserting a Registered Master Key causes the Security Indicator to immediately stop blinking.

Auto Registration Closure
This function allows the user to close Auto Registration Mode when less than three keys have been registered.

NOTE:
When a New ECU is installed, it is in the Auto Registration Mode. This mode allows the Transponder Keys to automatically register as they are inserted into the Ignition Cylinder. See the Repair Manual for further details.

CAUTION:
This function requires the use of one Registered Master Key. The use of a Sub Key NOT complete Auto Registration Closure. The use of a non-transponder key this function may damage the ECU.





1. From the "KEY CODE UTILITY" menu (Screen A), select [3: AUTO REG CLOSURE].





2. Confirm the instruction on Screen B and press the (ENTER) key.





3. At "AUTO REGIST. CLOSURE" (Screen C), the Auto Registration Closure Information will be displayed. Press the (ENTER) key to finish.