You have a diagnostic tool built into the vehicle which screams "you have a problem" even though there isn't one. Imagine it's your tire pressure monitoring system that does that, why would you care ? Why would you care if your screen lights up red suggesting you pull over immediately ? Indeed so many questions...
I guess I don't see a triangle with a red exclamation point in it as "screaming" at me. It's just a message for me to with what I will.
Cool. Maybe you can get some perspective from this:
No, the truck reports an electrical issue with the trailer. I don't know if it only covers the lights or brakes too. It is a useful feature as any such trailer issues can be a significant safety risk, but if it doesn't work properly then it's like not having such feature altogether.
I want to do it so I can go to a parking lot, when it’s snowing and have a little fun.
I have a brand new trailer. Everything works until you put the truck in reverse, then the trailer icon turns to Red. Then once you park and go to drive it again, trailer icon shows normal. The behavior is consistent and repeatable.
The wiring is fine, the trailer physically has no reverse lights installed.
7 pin or 4 pin connector?
Any chance the connector has a dummy load for backuo lights?
Folks above mentioned 4pin vs 7pin stuff. My trailer is actually 7 pin with electric brakes. There are indeed no backup lights on it. Relatively large trailer too - 3500lb dry (14k GVWR), 22ft long.
