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Toyota Immobilizer Key Code Reset Service Bulletin

June 1st, 2010 · No Comments

Applicable 4Runner, Camry, Highlander, Land Cruiser, MR2 Spyder, RAV4, Sequoia, & Solara
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. The Immobilizer Reset function is a 5-step process: 1. Using the Diagnostic Tester, retrieve a “Seed Number” through the OBD/MOBD Immobilizer function. S 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.
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).


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