I've posted a thread recently identifying some electrical issues relating to intermittent ability to turn car on with not much feedback from the forum. Presently the two key fobs nor the valet key (all with new batteries) won't even open the car door. After opening manually, with no dash lights identified, when I turn the key to start, all dash lights come on to include the alarm. The car won't crank, turn, spark or anything. It appears it's not even recognizing the keys......but all keys and all at once? The car has a new battery, starter, coils/wires/plugs that were all changed within the previous 3 months. Somebody please help!! I have no more ideas. Thanks!

 

Is the security (key) light flashing?

 

No dash lights until the key is turned to "on" then all lights, including horn alarm, are on but nothing happens when turned fully to start.

 

I assume you checked your fuses?
I had a short pop my engine fuse and didn't see it was blown until I looked closely at it.

 

Yep. Under hood and inside lower panel all checked good. It was all in one day that all keys failed to open the car door with the button on the fob. All 3 have the same result when trying to start the car, at the "on" position, all dash light & alarm goes off and absolutely nothing when turned to start.