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Using LEXUS Scan Tool

  1. Insert registered master key in ignition. Turn ignition on.
  2. Perform this step within 2 minutes. Select LS430, IMMOBILIZER, KEY CODE UTILITY and TRANSPONDER CODE REGISTRATION from LEXUS scan tool.
  3. Perform this step within 20 seconds. Remove master key.
  4. Perform this step within 10 seconds. Insert master key to be registered in ignition. Security indicator should flash. After one minute, additional master key is registered. Security indicator should turn off.
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