Dodge ram 1500 2007 brake light and turn signals not working

There's most likely a short in the wiring at the rear of the vehicle. Trace the wiring on both sides from the bulbs towards the cab. It's likely very near the bulbs. There'll be a damaged wire most likely that's shorted to the body of the truck. A quick way of narrowing down the area is to put something on the brake pedal to turn the brake lights on and then shake the wiring harnesses. See which one causes the light to flash on. That'll be the culprit

I had to re-flash my pcm, $176.00 for me. Good Luck.

If your brake lights and turn signals are not working but the third brake light is working I would go with Nope's answer and check the wiring for a broken/bad wire.

I’ve had the same problem, 4 or 5 times at this point. Every time I have my mechanic plug in his tool into the OBDII port. I think he just clears the codes that come up and they work again. From what I understand, they made these trucks to where fuses don’t protect most of these circuits. Instead, they made the computer in charge of the fuses job, shutting off the circuit when it detects a problem. I’ve also read elsewhere that replacing the TIPM would fix this, but that’s an expensive fix. Anyone that knows anymore please help, I’m tired of it being Friday night and no place is open so then I don’t have lights for the weekend. This effectively disabled my truck!