Optima battery replacement or charging system
Hi folks, my toy hauler is a 2004 WW FS 22 with an inboard Onan generator , the generator starts right up and runs great...Tow vehicle is an 09 3500HD duramax silverado with the factory pin connecti...
Forum Discussion
BigBlockTank wrote:
I have a 08 Chevy 2500HD diesel, and I know that when the trailer is plugged in to the truck plug, you have to have the tow/haul button pushed on the end of the shifter. Otherwise, the charge wire in the 7 round plug isn't working.
something has to be wired wrong on your truck. The constant power for the "charge wire" is wired direct to a lug on the fuse block. This has to be done when the truck is new. GM just tapes it up under the master cylinder. If you're not getting power unless tow/haul mode is, something is definitely wrong with your truck.
And I have a lot of experience with Duramax trucks from 06 - 14.
