Need help I can't figure this out I've spent all day researching and have gotten no where my security yellow lock light flashes once and doesn't stay on and the car won't start ? I've tried the 3/10min key relearn procedure but the yellow pad light disappears ? Battery is good and so are the fuses

 

Did you do something between the last time it successfully started and now?

All of the warning lights should flash on momentarily before you try to start the car, so that light may not mean anything.

 

Double check the fuse block connections and the ECU connections, make sure the fuse block bolts turn until tight, if you hear poping noises while tightening keep going until irt wont turn anymore.

 

Try a different battery
My dad's had the same problem not 2 weeks ago

 

yeah what happend was i was using that positive turmonal on the fuse box under the hood to jump the ac clutch to make sure it works , cause the ac wasnt working. but in the process of that i had the car on an had the ac @ full blast and soon as i touched the wire from the ac clutch to the positive turmonal it shut the car off and it happed i tried to start the car and i gues it threw it into this anti theft mode ? i tried using a different battery and checked all the fuses not one of them popped.

 

Resolved the issue , had a dealer look at it today and come to find out that its a burnt bridge on the fuse box