hi, first sorry for my bad english its not my first language.

my car dont start(before he wasnt freaking everything but just didnt start...)

when i turn the key and do the starter-blocker'?'(anti-demarreur) i saw the light for electric problem in same, i see the D4 lighted up in same as the P (and a lill electric sound from the back..) (but these stop afther 3sec)

and when i turn the key for the start the klaxon and everything are freaking/flashing


i ear it could be the ecu or cable from it that do a shortcut but i dont know mechanic and i dont see thread that i can rly compare with me...

my car are a honda civic LX 1998 1.6 automatic

 

Sounds like your car has an alarm system. Focus there.