engine wont crank-security light is on-it is the security system it starting a couple of times & than would crank again -same problem all over again.how do I bypass security system??

try your spare key first,see what happens.there are lots of problems with the anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. Then the key and ignition lock cylinder might need to be replaced to correct this condition and new keys made/cut with correct resistance chip.