7 pin plug
I have a 2004 chevy 2500 hd duramax allison The 7 pin plug does not transfer 12volt to the trailer plug (both the rear or the in box plugs are the same) is their a fusible that has to be added some w...
Forum Discussion
sleepywheel wrote:
My 2009 GM was like the earlier units. I connected the wire to the terminal on the fuse box and then installed a 40 amp fuse. Unplugging the 7 way connector gets to be a real pain, especially when I forget to plug it back in when leaving the campground.
Putting in a solenoid is the next best thing but trying to find a switched wire by cutting into the harness doesn't sit well with me. So I found this Cole Hershee 48530 solenoid that seems to fit the bill. It stops the load from the camper from draining the truck battery and can be configured so that the camper battery can be used to jump start the truck if the main battery dies. That would mean installing a larger guage wire to the camper though.
http://www.colehersee.com/home/item/cat/211/48530/
That smart isolator looks interesting . What caught my eye in the specs was max relative humidity is 90% . I can imagine times and places that RH would be above that .
