No Brake lights
Tech Contributor
Joined: Jan 2007
Posts: 19,349
Likes: 1,124
From: Dyer, IN
I never said it was the hazard switch, but I guess you missed my point. If you look at the schematic, you'll see that the brown wire to the MFS, is fed from the hazard swith. The OP reported that the rear harzards do flash, just no brake lights......so the MFS has to be working normally.
Thread Starter
Advanced
Joined: Jun 2009
Posts: 98
Likes: 0
From: clovis ca
First of all I wanna thank Mike for really helping me out with sound well thought out advice and guidance. I replaced the flasher switch according to directions that Mike also sent me. Pretty straight forward a remove and replace job. I'm glad that I did it myself. With alot of help of course. Bad flasher took me about an hour and a half from start to tool clean-up. I had t but the flasher unit from the dealership. Pep boys, Kragens, auto zone did not stock the item. Once again a big THANKS! Lets cruise!
Tech Contributor
Joined: Jan 2007
Posts: 19,349
Likes: 1,124
From: Dyer, IN
First of all I wanna thank Mike for really helping me out with sound well thought out advice and guidance. I replaced the flasher switch according to directions that Mike also sent me. Pretty straight forward a remove and replace job. I'm glad that I did it myself. With alot of help of course. Bad flasher took me about an hour and a half from start to tool clean-up. I had t but the flasher unit from the dealership. Pep boys, Kragens, auto zone did not stock the item. Once again a big THANKS! Lets cruise!
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
ALSO remember---IF your car is an A4--- the brake light switch also UNLOCKS the converter evertyime the brake pedal is touched--
Having a failure in the brake light circuit may cause your converter to be permanently locked or unlocked---very imporatnt to get it sorted out as tranny issue could result--------
Having a failure in the brake light circuit may cause your converter to be permanently locked or unlocked---very imporatnt to get it sorted out as tranny issue could result--------
Tech Contributor
Joined: Jan 2007
Posts: 19,349
Likes: 1,124
From: Dyer, IN
ALSO remember---IF your car is an A4--- the brake light switch also UNLOCKS the converter evertyime the brake pedal is touched--
Having a failure in the brake light circuit may cause your converter to be permanently locked or unlocked---very imporatnt to get it sorted out as tranny issue could result--------
Having a failure in the brake light circuit may cause your converter to be permanently locked or unlocked---very imporatnt to get it sorted out as tranny issue could result--------
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Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
I said---
"UNLOCKS the converter evertyime the brake pedal is touched "
AND:
"Having a failure in the BRAKE LIGHT CIRCUIT may cause your converter to be permanently locked or unlocked
The "brake light circuit" is a general description of all the devices on that circuit and includes ANY switches associated with the brake pedal--This is what i was speaking of--
I never said STOPLAMP anywhere"
Not confused or trying to confuse anyone --just not splitting hairs like you--
Team Owner
Joined: May 2001
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Tech Contributor
Joined: Jan 2007
Posts: 19,349
Likes: 1,124
From: Dyer, IN
.....and that even makes less sense. The "brake light circuit"(as you call it), and the "extended brake switch circuit" have nothing in common....other than being co-located at the brake pedal. It's YOUR general description, not one that is common....or more importantly.....correct.
I'm not splitting hairs, just trying to clarify, for anyone reading this thread, that actually wants to understand the correct terminology, and not chase their tale, based off of someone's home grown "general descriptions".
Advanced
Joined: May 2010
Posts: 99
Likes: 1
using this thread for almost same issue 
I have third brake light working, intact fuses, working rear hazard flights and replaced the hazard switch a few days ago but it didnt solve my problem. After reading the above I guess next step would be to check the white wire but I dont know were to find it and how to get to it. The picture above seems to be removed.
Anyone can guide me where to look for the white wire and maybe post a picture or two.
Thanks, really like this forum and all the helpful people here. Dont know what I would do otherwhise
I have third brake light working, intact fuses, working rear hazard flights and replaced the hazard switch a few days ago but it didnt solve my problem. After reading the above I guess next step would be to check the white wire but I dont know were to find it and how to get to it. The picture above seems to be removed.Anyone can guide me where to look for the white wire and maybe post a picture or two.
Thanks, really like this forum and all the helpful people here. Dont know what I would do otherwhise
1st Gear
Joined: May 2012
Posts: 1
Likes: 0
Same Problem with Brake lights
Have the same problem center brake light works, flashers work but no regular brake lights. Replaced brake switch, should have read your post first, new to this. Could use help in remove and replace hazard switch. Bought 2000 vette in October should have checked out better when I ran into no brake lights and checked hazard switch it was jamed into dash and could not activate brother JB welded so it would work so I may have an issue to replace.
Intermediate
Joined: Jun 2010
Posts: 31
Likes: 0
Brake & Hazard Rear not flashing
I just read your post. My brake lights out and when hazards flash it's only the front. Was going to replace the hazard switch inside the console but wondering if there is possibly 2 different switches or fuses for hazards. Cant figure why front work and not back so assume I am missing something. Thanks for any help
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
I just read your post. My brake lights out and when hazards flash it's only the front. Was going to replace the hazard switch inside the console but wondering if there is possibly 2 different switches or fuses for hazards. Cant figure why front work and not back so assume I am missing something. Thanks for any help
1st Gear
Joined: Jan 2021
Posts: 1
Likes: 0
Hello
Sorry for this mail but I found old thread for this matter. Maybe you can help me?
I have this US exported c6 Z06 -06 and want to put back original rear lights, prev lamps were with separate amber blinkers. The old wires in back were cutted and brake signal was taken from third brake light. I have new USA-wire harness but after putting it to car the brake lights are not working with US-lights, everything else works. So there is some other modification made. I do not think that car has been changed to euro spec from BCM, it still has tyre pressure monitor. SO is there some change made in front of the car, there is no "white wire" in brake pedal (attched picture). Should i take hazard button off and check it?
Hopefully you can help me... You can send me e-mail : ismo.reponen@irepoint.fi or reply this.
BR
Ismo Reponen from Finland
