Any GM Techs in here?
The problem is the brake lights do not work when the pedal is pushed. The 3rd light comes on and all of the tail lights like up when the headlights are on but do not activate the brake lights when depressing the pedal.
I have looked at everything switches, fuses, relays, liightbulbs... i cant seem to track this one down. Does anyone know anything or have any tips or advise they can offer me? Is there an additional relay under the dash that im missing or something?
I simply tested the lines coming out of the brake switch. My 3rd light was getting signal, but the side lights weren't. Then I jumpered over the brake switch for the side lights and still nothing. The only thing upstream (I speak process flow) was the turn signal assembly switch.
Mine was easy to replace, I hope yours is as well.


