Just got done putting a brand new main engine compartment harness in the Shelby and connected everything. Everything works except the brake warning light. Since the MC has no fluid in it, it should trigger the light right? It didn't. So I disconnected the harnness from the switch on the porportioning valve and it still didn't come on. Check the bulb in the dash and it's good. Tried to use a VOM to see if there is current going to the switch and got all kinds of funky readings. Anybody out there got any ideas?