88 Monte Carlo SS Help!

Ive been to alot forums the past couple weeks...

Trying to restore a monte for my son, but brake system failed inspection, third eye lights up, I changed all bulbs, fuses and entire wire harness, still with the same results...no brake lights!

I have been at it for a couple of weeks now and Im really stumped...any help here would be sweet!
I only have two weeks left to take it back for reinspection.....:banghead:

PS have check hazzard, signals, tail, signal switches....nothing seems to work!

Follow the wires with a test light.

I moved the ground wire thinking rather hoping that would fix it. NOT!
There is power running to/from the third light connector in the trunk but how power gets back to the brake light I cant figure. When I jump the wire from signal to brakes they work, but that puts my left signal out!!!LOL I checked the bulb connectors to see it they have corroded but they all look fine (through all that pasty stuff!). A new wiring harness installed (waste of $$). I guess I'll pull that dash apart again today and take a second look!

Get a wiring diagram and see where all of the wires are connected. The brake light switch, turn snignal and hazzard are all conected in one place.

Found it! Top part of steering column wiring set...broken wire! Thanks for your input. Hopes this helps others searching. All lights are online and working!