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Home >> Lexus >> 2002 >> LS 430 >> Repair and Diagnosis >> General Information >> Computer Relearn Procedures - Import >> MAZDA >> Key Replacement Or Addition >> Customer Supplied Only One Or No Valid Keys
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Customer Supplied Only One Or No Valid Keys

  1. Cut new transponder equipped key(s). Using new key, turn ignition switch to ON position, then LOCK position 5 times. DO NOT leave key in either position for more than one second. Turn new key to ON position. SECURITY light should be flashing at 300-millisecond interval. Turn new key to LOCK position and wait about 5 minutes until SECURITY light flashing has decreased to 1.2-second interval.
  2. Input code word. See INPUTTING CODE WORD . SECURITY light should stop flashing and stay illuminated. Start engine with new key. SECURITY light should illuminate for 1-2 seconds and engine should continue to run. Turn new key to LOCK position and remove key.
  3. Using new second key, start engine. SECURITY light should illuminate for 1-2 seconds and engine should continue to run. Turn new second key to LOCK position and remove key.
  4. Repeat step  3 with new third key. Repeat step  3 with each new key, up to 8 keys total. Waiting 30 seconds will cause program to quit automatically.