blown brake fuse
I created an account only so that I could share my experience with blown brake fuse that made my life miserable for a couple of months. Being a do-it-yourself guy I refused to take my car to a shop, let alone a dealer. I hate to be charged hundreds of dollars for things that I can fix myself and I can fix them better 'cause noone cares about my car more than myself.
For some reason I cannot post this in the right place so here I go:
I have a Mazda 3, 2004, automatic transmition.
Basically a few months ago I noticed that I couldn't put my car in drive anymore - I assume manual transmition cars don't have this issue - so I panicked for a second. Anyways, I started checking here and there and noticed the brake lights would not come on. The bulbs were okay, there was no water, no moisture, no nothing. I checked the fuse and it was blown. Replaced the fuse, car was OK for a week or so, Then, the same problem. Replaced the fuse right away but it blew the moment I stepped on the brakes. This time I wasn't home so I came home with the emergency lights on and a screwdriver inserted in the little hole by the shifter. Once home, I checked the switch under the brake pedal for defects or worn out wires, nothing. I took apart the entire shifter piece within the center console hoping that I would find worn out wires or something stuck somewhere. I disconnected the horn because it is on the same fuse and I thought maybe it was a worn out wire there. The fuse blew the second I stepped on the brakes even with the horn and shifter all disconnected so it wasn't the horn nor the shifter - what a relief. Still no idea what was going on. I put everything back together and replaced the fuse once again. It worked!!! For a week. Then the fuse blew again. Replaced the fuse - car was good for a week, then fuse blew again. I started to wonder why sometimes the fuse blows right away sometimes it holds for a week or so. It mostly happened on weekends. Funny enough, I realize I go shoping on weekends and that's when I open the trunk. I took the trunk cover apart, disconected the wires and inside the rubber hose that connects the lid of the trunk with the rest of the car - left side - all 4 wires were worn out big time. I did not buy new cables, I simply replaced about 35 cm of the wires with different wires and connected them with some standars connectors you buy at your usual hardware store.
The whole thing works like a dream now. I'm very proud. I fixed this problem myself, spared the trouble of going to the dealer or a service shop and I also saved a few hundred dollars. I bought the connectors for $4.95.
I hope this will help you fix your problem. If your car exhibits the same symptoms I suggest you start with the rubber hose described herein. Remember, when the fuse blows, the horn won't work either and, trouble is, with the automatic transmition, you won't be able to put in in drive.
I hope it post helps a few folks out there. Good luck!
Last edited by Horea; 02-17-2013 at 02:30 PM.