On my 2006 Dodge Grand Caravan the brake lights and back turn signals work fine. I changed the bulbs no luck. Any ideas

Thanks for choosing FixYa and welcome. Try checking your signal fuse and tail lamp fuse for the brake lights. They may have blown. If they are good, for the brake lights, you could have a bad brake switch, which is located right above your brake pedal. As for the turn signals, you could have a bad wire somewhere in the harness. Check closely at the bulb sockets. It is possible that you could have a loose wire at the signal switch or a bad wire.