brake light issue

[towncarblue]

i have a 1997 m3 sedan automatic. my obc is saying brake ligt failure and my brake lights aint working. the rear corner lights work , what could be the problem? what do i check for?

[ArcticFox]

Replace the brake light switch. Common failure. It is under the dash, and contacts the brake pedal. Tim

[///MacDaddy]

Replace the brake light switch. Common failure. It is under the dash, and contacts the brake pedal. Tim
Yep, I did mine recently, like $11 bucks from the dealer.

edit: I just saw that your brake lights are NOT working. Mine worked, just kept throwing the OBC message. It could still be the switch. Have you checked the fuse?

[guzafrom877]

My left one is out but I think it's really out. Probably the bulb - Advance Auto? OBC lets me know everything, even the stuff that isn't wrong.

[polifimos]

If your OBC displays "Brake Light Circuit Failure", then it is indeed your brake switch and here's a write-up about how you can remove/replace it:

http://www.geocities.com/karlkarlb/brakeswitch.html

You can buy a new one at the dealer for less than $30, or perhaps a bit cheaper from elsewhere.

Cheers.