I just noticed yesterday I have no brake lights- zilch- zip- none at all. I usually check every so often to be sure they are working, so I don't think they were out long. I would likely had a roadside counsel with the long arm of the law too. Here's what I tried today- Checked fuses Checked all bulbs Verified other lights -4 way/turns and running all working okay. Disconnected high mount light at connector to eliminate that line Checked brake light switch at pedal- OK Fluid a bit low but not below min- topped up Got out my meter and checked at bulb sockets - brake light lead is shorted to ground Unplugged rear harness- short goes away at bulb sockets, but remains in forward part. No problem in rear section. So I am thinking it has to be forward in wiring, some sensor or in module somewhere. Found no obvious wiring problem in what I could trace by eye to the front I am about out of ideas. Can I unplug the ABS module to see if that eliminates the short to ground without damaging it? Will I have to trace wire by wire- cutting into and then splicing as I go (measuring continuity without possibility of feedback from other parts of circuit.) to find it? I hope I don't have to that.
Any comments would be greatly appreciated. It is a '94. I would also like to find out where I can obtain Ford wiring diagram with all splices and connectors labeled and identified as to location on vehicle. Haynes book I have doesn't go that far. TIA
-Dan