No Brake Lights

My son's 71 valiant lost its brake lights. Fuse is good, power to the switch, I took both wires off the switch an made a jumper wire to test. Still no lights. The turn signals all work, as do the hazards, and tail lights. The dome light does not work. EDIT There is 12 volts to the dome light. Yes, we tried new bulbs This is his only transportation. Any ideas? Thanks.