I have a 2020 Ram 2500 that I recently bought new headlights for. Low/ High beam LEDs work just fine but the turn signals do not work. I bought a safety gateway harness, the OBD link MX+, and the AlfaOBD app on an android tablet. Changed all lighting to LED on the car configuration change one at a time, waited the five minutes, and it still doesn’t work. The turn signals will give 4 flashes then shut off completely. I’ve cleared the codes and tried again, and still nothing. Has anyone had a similar problem or knows how to fix it? Any help is much appreciated.