91 seville the plot thickens

[steveo]

had car running in driveway wiggiling wires .trying to see if it would die. dicided to mess with switches turned on headlights it died instantly . wont crank.info center says no ecm data when i check codes ,i notesed last time i drove at night there was a short in dash dimmer . ipulled lightswitch out of dash, still wont start. steveo

 

[Aaron J Williams]

Does your security light on the instrument panel go out after 2 seconds when you turn the key to run position?