Today I took the car out for a quick drive with a friend and he starts yelling "you have no brake lights!!" I'm like wtf... sure as ****.. no brake lights.


*I checked and replaced the fuse
*I bought a new brake switch under pedal
*Pulled all the bulbs and tested one by one
*Check hazard button it's plugged in still
*swapped some relays

Still I have nothing... Is there any other brake power source or brake switch? I know the brake light switch is a four wire connector so maybe something else is causing the issue. Where does the switch get the power from? Straight from the fuse box? Because I put a tester up to the switch and it didn't light up with any of the prongs I touched. But not sure if any of them should light it up. I would think they should though. Any ideas or thoughts?


I also have no hazards and I remember last week locking my car and having no horn when it locked.


I put a power tested to the fuse box on the fuse for brakes/horn and to the fuse for hazards and the tester doesn't light up. So why not... those aren't coming straight from the fuse box right... should the tester should light up saying there is power. So now I'm leaning towards somewhere there is a bad ground? but I don't even know where to start looking now... if thats the case...



I'm running out of ideas

 

It'd be nice to know the MMY of the car....

 

Ditto that. 94

 

Oh sorry!!

Its a 2005 RSX-S

 

Here's the etm schematic for the brake lights. It should be pretty straightforward. Make sure there isn't anything funky wired into the brake lights like a trailer hitch (not likely on an rsx).

Note: fuse 7 also controls the horn relay. There's a good chance that it's blown if your horn isn't working.

 

I think the fuse box itself went bad. . .

 

Why?I didnt bother helping anymore after that last guy gave you the wiring diagram because I figured that was all you needed. I know you do most, if not all, of your own work. Whats the story so far?

 

I would also like to know why, is there no power at the fuse, is there no power on the white/green at the brake light switch, or are you just guessing? 94