i got a 1989 crx and just recently i was driving and it turned off ....i saw that the battery fuse was messed up so i replaced it and it turned back on but it only lasted a couple of minutes and that one popped too.ive replaced it 3 times .Does any body have an idea about it. (i dont know if this will help but i noticed like a couple of minutes before it messed up my temp was on high and my car was only running for 10-20 minutes and after i saw that it was high it calmed down back to normal and then it messed up)

 

A good place to start would be to check your grounds and that no 12V wires are exposed and grounding out. Start with the battery to tranny to frame ground and the positive wires running to your fusebox.

 

check to see if the power wire to the alternator from the bat. is grounding too