tried changing the fuse to be safe - nothing, checked the brake light switch - seems fine no missing parts. read somewhere it might be the ground, i ecently installed a sub and grounded the sub to a rail under my seat, i dunno if that has to do with anything. also its an 88 crx and they were working before just a couple days ago took my car to a shop to get new tires and they told me i had no brake lights.
Ok my tail lights work, but brake lights dont. help?
The brake light switch is the likely culprit. Just looking at it won't tell you anything, they fail internally. If there are no blown fuses, where you grounded the sub shouldn't affect anything as long as it is a strong ground.
Ok my tail lights work, but brake lights dont. help?
if there is 12 volts to the switch, then the fuse is good and the bulbs and or grounds at the lights would be suspect
I would say it's the brake light switch since you say the fuse is good. A ground problem would not effect all lights at the same time since they are grounded individually. Hope this helps. Good luck.
There's a chance the ground wire shorted out the bulbs themselves. Replacement bulbs are about $15 and easily can be returned if that's not the issue. I know it's not a speaker forum, but you should really ground the wires directly to the frame/body of the car by removing the carpet or cutting a small hole through it. If there's any paint on the surface (there probably is on the rail) it will not ground properly.
with a test probe you need to check for a 12 volt feed coming out of the brake switch when brake applied.. if ok go to the rear remove brake bulb and do the same... if ok check the earth connecton by putting test probe on the live terminal of the battery and check earth at rear good luck reg tony
