Immobilizer System - Key Code Reset Procedure
SPECIAL SERVICE TOOLSSS003-01
REVISED
August 30, 2002
Title:
IMMOBILIZER KEY CODE RESET
Models:
Applicable 4Runner, Camry, Highlander, Land Cruiser, MR2 Spyder, RAV4, Sequoia, & Solara
TSB 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.
^ June 25, 2003: Preparation procedure now applies to all model years of MR2 Spyder.
^ January 20, 2003: Updated terminals in Figure 1. Previous versions of this TSB 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 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.
Preparation:
'00 & '01 MY MR2 Spyder & '01 MY RAV4 Only
Before beginning the Key Code Reset function on 2000 and later model year MR2 Spyder and 2001 model year RAV4 vehicles, it is necessary to short terminals Tc to E1 at the ECM connector, using SST No. 09843-18020. (Refer to Figure 1.)
With ECU connectors in place, back-probe and short terminals Tc to E1 (pin 17 to pin 5).
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 the ignition ON.
1. Using the Diagnostic Tester, follow the screen flow in Figure 2 shown 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 Reset "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 as shown.
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. 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 TSB No. SS001-99, "Scantool Immobilizer key Code Utility" for additional detail on this procedure.