Antitheft System - Immobilizer Key Code Reset
SPECIAL SERVICE TOOLSSS002-01
REVISED
August 26, 2002
Title:
IMMOBILIZER KEY CODE RESET
Models:
Applicable ES 300, GS 430, GS 300, IS 300, & LX 470
TSIB REVISION NOTICE:
^ August 26, 2005: The model years for each model have been specifically defined in ~ the "Applicable Vehicles" section. The "Required SSTs" section has been updated.
^ February 11, 2003: Model years for LX 470 revised to apply to 2001 and 2002 only.
^ August 26, 2002: ES 300, GS 300, and IS 300 models added. Model years for GS 430 and LX 470 vehicles expanded to include 2002 and later. Diagnostic Tester software in Required Tools & Material updated to version 9.01a (or later).
Previous versions of this TSIB should be discarded.
Introduction
Immobilizer Reset is a new feature that allows the registration of a new Master Key even if all original Master Keys are lost. Once the Immobilizer system is reset, all previously registered keys will be erased.
Applicable Vehicles
NOTE:
Refer to TIS (Technical Information System) for the most current applicable vehicle information.
Parts Information
Warranty Information
Required SSTs
NOTE:
Additional Diagnostic Tester Kits, CAN Interface Modules, Program Cards, or other SSTs may be ordered by calling SPX-OTC at 1-800-933-8335.
Function Description
The Immobilizer Reset function is a 5-step process:
1. Using the Diagnostic Tester, retrieve a "Seed Number" through the OBD/MOBD Immobilizer function.
^ A "Seed Number" is a unique number provided by the Diagnostic Tester and validated by TIS (Technical Information System) in order to return a Passcode.
2. Using TIS, select Immobilizer Reset, and complete the request form to retrieve a "Passcode Number."
^ A "Passcode Number" is a unique number required by the Diagnostic Tester to reset the ECU allowing it to accept a new Master Key.
3. Enter the "Passcode Number" received from TIS into the Diagnostic Tester.
4. Confirm successful Immobilizer reset and new Master Key registration.
5. Register any additional customer keys.
Key Code Reset Procedure
NOTE:
Ensure that the Diagnostic Tester is equipped with the latest version of software (13.0a or later).
Connect the Diagnostic Tester to DLC3 and turn ignition ON.
1. Using the Diagnostic Tester, follow the screen flows to retrieve the "Seed Number." (DO NOT DISCONNECT the Diagnostic Tester from the vehicle during this process.)
2. Using TIS, select Immobilizer Reset, and complete the request form to retrieve a "Passcode Number."
A. Click on Diagnostics.
B. Click on Immobilizer Reset.
C. Read the instructions on the screen and click on Continue. (See Figure 4.)
D. Complete the request form and enter the "Seed Number" from the Diagnostic Tester. Click on Submit (Figure 5).
NOTE:
All fields must be completed.
E. TIS will now return the Passcode that needs to be entered into the Diagnostic Tester.
NOTE:
The Passcode given by TIS is only valid for one Immobilizer Reset Event.
3. Using the numbered keys (0-9) on the Diagnostic Tester, enter the "Passcode Number" received from TIS. (See Figure 7) Press ENTER to clear all registered key codes.
NOTE:
Key Code Reset takes approximately 16 minutes.
4. Confirm successful Immobilizer reset and new Master Key registration by starting the vehicle.
NOTE:
^ If the vehicle starts, the new Master Key code is registered correctly.
^ If the vehicle does not start, perform the Immobilizer Reset function again.
5. All previously registered key codes have been erased except the Master Key used during "Key Code Reset."
^ Register any additional customer keys by using "Key Registration." Each key will start the engine if registered correctly.
^ Please refer to TSIB No. SS006-99, "Scantool Immobilizer key Code Utility" for additional detail on this procedure.