1999 cadalic deville info center reads theft system problem car may not not restart

try resetting you anit theft system. turn key on until theft llight goes out or 10 minutes. turn key off and try to start car. also if this has the diode in key try another key but not a new one.

car pro)have tried key change @wait ten minutes i was told that could be wires to ign tumblers . cant find any in balto. md. that knows how to repair .have any other idea ? thanks tall paul.