I need help with some light problems. My FJ had all lights working but now the reverse light, brake light, horn and hazards don't work. The headlights (high and low), the parking lights, back and side and signal lights all work. To be safe I changed all of the fuses - some were older so I didn't want to take a chance. Checked all wires and all seem to be okay. I even ran a separate ground wire to the horn but got nothing. What you guys think?