2006 GMC 2500HD brake switch failure

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2006 GMC 2500HD brake switch failure

Unread post by Guest » Wed May 15, 2019 6:35 pm

I have already read a couple of the posts on here about this. I am getting plenty of power which I think is my problem. I replaced my alternator thinking that it was sending too much voltage at 19 V to the that battery. The new alternator came with a spec sheet that said it should be putting out 19.6 V. Is there something between the alternator and whatever else to bump down the voltage? I'm getting full 19 V at my taillights. I've been through 14 brake light switches