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Home >> Toyota >> 2003 >> Matrix Base, FWD, Standard >> Repair and Diagnosis >> General Information >> Computer Relearn Procedures >> Additional Master Key Registration (Except PRIUS) >> Using TOYOTA Hand-Held Tester >> Camry (Jan. 2003 & Later Production) & 4Runner

Camry (Jan. 2003 & Later Production) & 4Runner

NOTE: A master key is a black-colored ignition key. Additional master key may be registered using Toyota hand-held tester. It is possible to register up to 5 master key codes and 3 sub-key codes with this procedure.
NOTE: Perform the following operation when registering an additional master key or sub-key.
NOTE: If ignition key registration was complete, and system is operating normally, SECURITY indicator light should flash when ignition key was removed from ignition lock cylinder. If ignition key registration was not completed with ECM in automatic registration mode, a code 2-1 will be displayed by SECURITY indicator light. When inserting an already registered ignition key, a code 2-2 will be displayed by SECURITY indicator light. See Figure.
  1. Connect hand-held tester to data link connector No. 3. When using hand-held tester, more detailed procedures may be displayed on tester while performing this procedure. Data link connector No. 3 is located at driver's side of instrument panel.
  2. Ensure SECURITY indicator light is flashing. SECURITY indicator light is displayed as a vehicle icon near the center of the tachometer.
  3. Insert already registered master key in ignition lock cylinder. Turn ignition on.
  4. Once ignition key registration is under way, SECURITY indicator light should turn off. Within 120 seconds of turning ignition on, using hand-held tester select the menus in the following order:
    1. Select vehicle model
    2. Select IMMOBILIZER
    3. Select ID UTILITY
    4. Select TRANSP CODE REG
  5. With completion of hand-held tester operation, SECURITY indicator light should turn on steady. After tester instruction, remove the already registered master key within 20 seconds.
  6. Within 10 seconds of removing the master key, insert the key that is to be registered in the ignition lock cylinder.
  7. While ignition key registration is taking place, SECURITY indicator light should being to blinking. Once registration is complete in about 1 minute, the SECURITY indicator light should turn off. Remove ignition key and SECURITY light should begin blinking again signaling normal operation of the engine immobilizer system.
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