Posted 2007-02-28 3:51 PM (#56504 - in reply to #56432) Subject: RE: 04 2500HD brake lights come on for no reason
Regular
Posts: 56
Location: Alabama
Now there comin on almost all the time we found a fuse to pull out and they go off but if were not able to go over all wirin Sat at the shop were takin it to the dealer Monday
Posted 2007-02-28 4:26 PM (#56507 - in reply to #56432) Subject: RE: 04 2500HD brake lights come on for no reason
Expert
Posts: 2689
I'd search for whatever it uses as the normal brake switch.
It might be a micro-switch on the brake pedal arm, it could also be a pressure switch or sensor in the master cylinder...
I had schematics at one time, I can't find them right now, but I think I've posted a link to them before.
Posted 2007-02-28 6:32 PM (#56513 - in reply to #56432) Subject: RE: 04 2500HD brake lights come on for no reason
Expert
Posts: 3802
Location: Rocky Mount N.C.
Does it do this with a trailer plugged in? If so check your plug for the "hot wire" making contact with the brake wire.....I'm just throwing something out there.