tjharriz71
Junior Member
Hi guys, I've got a 2017 1500 longhorn with the factory led tail lights and I bought some aftermarket ones from american trucks along with the adaptor that uses bulb sockets in place of the stock pigtails. Well everything from the brakes to backup lights to turn signals work fine except for the running lights. I'm really at a loss here and everything I've read so far hasn't helped. For example all my fuses are perfect and I can hook the oem ones back up and they work fine. And to put a 12v battery to the new lights will light up the C bar running lights so they're working fine too. Also the plugs are getting 12v when checked with a volt meter so the pig tails are good. I've read about alphaobd settings but the stock settings should be leds since the oem tail lights are. Any help would really be appreciated. Thanks.
