Headlights and taillights not working?

Last year the low beam headlights went out. I replaced the headlight driver's module and they worked again. Last week my wife was driving home, and the headlights and taillights quit, but the dash lights worked. She pulled over, in about 10 or 15 minutes later the lights came back on. About 5 miles before she got home, the head and taillights went out again and did not come back on. When I checked the car in the morning, I found that the instrument panel lights worked. The head and taillights didn't work automatic but worked fine in the manual position. I looked at the internet and someone suggested putting a new headlight switch in. I replaced it but that didn't work. What should I do next? Thanks in advance for your help! David