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1997 LS400 KEY PROGRAMMING
From: keymam.com    Write: keymam     Date: 2008/2/8 13:38:45    Hits: 6160

1997 LS400 KEY PROGRAMMING

Key Programming 1. Close all doors.
2. Insert an already programmed master key into the ignition.
3. Turn the key from the OFF to On and back OFF FIVE (5) times.
4. Open and close the drivers door SIX (6) times.
5. Remove the key from the ignition.
6. Insert the new key you want to program into the ignition.
7. Wait 1 minute. The security light will be blinking for this one minute. When it stops blinking your key is programmed. To end programming step on the brake one time.
NOTE: You have 35 seconds to complete steps 1-5 and 10 seconds to complete step 6.  If you do not do this procedure fast enough the car will not go into programming mode and your key will not program.

If the security light does not go out after 1 minute start the procedure over again.