Antitheft - Diagnostic Tester Immobilizer Function: Overview

SPECIAL SERVICE TOOLS
SS003-02
REVISED

December 11, 2002

Title:
DIAGNOSTIC TESTER IMMOBILIZER FUNCTIONS

Models:
Applicable Toyota Models

TSB REVISION NOTICE:

^ August 26, 2005: The model years for each model have been specifically defined in the "Applicable Vehicles" section. The following vehicles have been added to the "Applicable Vehicles" section: Avalon, Corolla, Highlander, Matrix, Prius, RAV4, Scion tC, Sequoia, Solara, & Tacoma. The "Required SSTs" section has been updated.

^ June 17, 2003: Camry and Sienna added to applicable vehicles; screen flows revised (screen C) in Figures 2, 3, and 4. Previous versions of this TSB should be discarded.

Introduction

The Diagnostic Tester incorporates support for Immobilizer system service. This bulletin covers the following Immobilizer functions available using the Diagnostic Tester on applicable models:

^ Transponder Key Type
^ Transponder Code Registration
^ Transponder Code Erasure
^ Transponder ECU Reset
^ Transponder ECU Replacement
^ Engine ECU Replacement

NOTE:
The available functions and procedures for the models listed in this TSB differ from previous models and other Immobilizer systems currently in use on Toyota vehicles.





Parts Information





Warranty Information





Applicable Vehicles





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

1. Transponder Key Type

Before any Immobilizer functions are performed, verify the type of transponder key that you are attempting to use for the service operation. Some functions may only be performed with a registered Master Key.

2. Transponder Code Registration

This function allows the registration of additional transponder keys (Master or Sub) using a registered Master Key.

3. Transponder Code Erasure

This function allows the user to erase all the transponder keys except the registered Master Key used during this function.

4. Transponder ECU Reset

This function allows the registration of a new Master Key even if all original Master Keys are lost. Once the Immobilizer system is reset, all previous registered keys will be erased.

5. Transponder ECU Replacement

When the Transponder ECU is replaced, the transponder keys must be registered to the new ECU, auto registration closed, and ECU communication completed.

6. Engine ECU Replacement

When the Engine ECU is replaced, ECU communication must be completed to synchronize an encrypted security code between the engine and Transponder ECUs.