2007 Chevrolet Silverado 1500 Q&A

2007 Chevrolet Silverado 1500 Question: brake lights don't work, overhead cab light does. I have replaced bubs/fuse

I don't know where the electrical ground is. what else is there to check? -
Answer 1
Check to see if high mounted brake lamp works. That lamp is works directly from stop light switch and does not go through turn signal switch. Not likely a ground problem. -
Comment 1
Yes the high mounted brake lamp does work. Do the rear brake lights go thru the turn signal switch? Thanx -
Comment 2
Yes...but check the bulbs on both sides first..could be blown fillements on 2 bulbs. I would then test at the sockets with a test light while someone steps on brake. Double check fuses. and check to see if a trailer wire harness could have been installed and having corosion issues there. -
Comment 3
Thanx for your help I will check both areas -