a 94' prelude my brake lights wont turn on but my bulbs are good, and my brake pedal switch is good, my left turn signal wont go on but my bulbs are good and my cruise control no longer turns on yet my fuse is fine, sounds like I have major electrical problems but I dont know where to start. could this be a relay problem? Not sure if brake lights/turn signal is associated with a relay/fuse or not.

 

Have you recently installed a deck, or anything such as gauges, tv, something near the front dash?? I had this happen when I first got my car which is also a 94' prelude and I learned how not to install decks the wrong way; the hard way. basically that metal bracket that the deck bolts to behind the center consol/dash is where a lot of grounds are contributed. If you did install something like what I said above and didn't do a supreme long lasting good job on the power wires then one of the power wires "remote wire, positive power supply wire, illumination wire, amp power wire or even auxillary wire posts" could have touched that metal bracket plate or whatever your brakes are grounded to and shorted out the brake lamps. I didn't actually fix this problem though so I don't know exactly what to tell you, I wasn't really anywhere near experienced enough to at that point, however if im not mistaken I want to say there was a fuse that ran from my brake switch to my brake lights somewhere under the dash or carpet of my lude and basically this electrical shop replaced the wire from the fuse a long with the fuse; all the way to my brake light.

If it isn't that then my next question is did you recently put on aftermarket tail lights because some after market tail lights aren't very well sealed and if you took it to a car wash or washed it then my next guess is moisture got inside of the tail light housing and may have rusted the socket or even the wires soldered to the socket for the bulbs but this would be a rare occurence.

Reply to my first statement for sure because if you did install something I would go back through and deffinetly see if you may have left any power wire exposed to where it may have touched metal on your chasis even if you just hit a bump or something let me know man, goodluck.