Florida Ranger
Active Member
- Joined
- Dec 12, 2020
- Messages
- 58
- Reaction score
- 35
How does my truck know approx. how long a trailer is that I am towing, I am guessing rear sensors.
It will do it regardless if anything is plugged in or not I believe. It doesn't sense on the 4 pin, only on the 7 pin.Hmmm. I think you need to be in both tow/haul mode, AND have the cancan bus sense a draw on your trailer connector? I’ve never seen the trailer icon bls light up without the trailer attached..