I am currently working on my 1972 Cutlass trying to do everything before I get it on the road. I have no brakes lights. I changed the stop light switch and still nothing. My lights work regularly just do not flash when I apply the brakes. Any ideas would be great I don't want to get rearended. thanks alot

 

Fuse?

Do the tail ligts work when the lights are on?

C.J.

 

all lights work, but i have no brakes lights, They do not brighten up when I apply the brake. same with the lights off. I did a search on the net and came across some stuff for old GM's and people are suggesting the turn signal switch? Not sure though.

 

turn signals don't work either?

 

no they do work but from what i have read the brake lights work through the turn signal switch and the turn signals can work and the brake lights dont.

 

You are correct, but it's a long shot. A few more questions...
Do your front turn signals work?
Do your 4-way flashers work?
Does your "key left in the ignition" buzzer and horn work?

C.J.

 

Im having the same problem. Havent tried to fix it yet as I just dropped my motor in and its on the list. This should help I hope....

 

yes sir all turn signals, flashers and annoying buzzer work. So what do you think? It may be the turn signal? thanks again for all the help

 

Last stop...check for voltage at the stop lamp switch (orange wire).

If it's not that...I'm afraid I'd start looking at that turn signal switch.

Get a Chassis Shop Manual (forget Chiltons and Haynes) on ebay. It'll pay for itself!

C.J.