emptech

From what I've read, the newer "smart" vehicles "test" the trailer lamps. They want the trailer lights to draw at least 80 milliamps. At 12 volts, thats about 200 ohms. I have the same problem, what worked on my 2009 Suburban will not work on my 2024. I'm going to add some 180 ohm resisters across the LED lights to see if it makes a difference. There is probably a relay under the hood that supplies power to the trailer circuits, IF it thinks you have a trailer. If I knew which relay it is, I'd try bypassing it. Jim [email protected]