ok so I've read about ninety posts on brake lights failure. my brake lights just quit working. I've checked out fuses, and the brake switch, they seem to be ok... although it would be good to know more about the switch itself... such as when the pedal is up not depressed are the contacts closed or open.... there are two sets of wires attached to the switch,,, one has a org and wht wire and the other has two light blue wires... there is power at the org wire and when the switch is depressed no pwr to the wht wire... when the switch is relaxed or the pedal is pressed the pwr is present at the org and wht wire in the one connection and nothing in either position on the other connection w/ the light blue wires.... all other lights work.... I've read about possible turn signal switch being the culprit but most state it's the brake light switch on the pedal arm.... ok so can anyone tell me about the switch a bit more.... this car does not have the third light... thanks ,,, Doug

 

Very simple circuit.
not sure what year you have
check your grounds.


http://austinthirdgen.org/mkportal/m...ody_wiring.gif