So I just noticed my 2015 Ram 2500 MC has no rear directionals. The fronts and mirrors work just fine. Some key information:
1. Fuses have been checked
2. Aftermarket (Recon) tail lights have been pulled and wiring harness checked with a testor. No blink.
3. Stock tails installed just to confirm same result. Same result.
4. Truck is tuned by DRD. Flashed back to stock. Same result. Reflashed to custom tunes. Same result.
5. Truck has two 3 month old batteries that are so not the problem. Not a low voltage issue as I'm usually sitting around 14.5v.

Again, tails and brake lights work just fine. Directionals work just fine up front and on the mirrors. I thought for sure it was my MM3, but after having the same result after flashing back to the stock tune, I'm thinking a chaffed wire or something else? Ideas???