I am on Prince of Wales Island in Alaska (long ways from any dealer) so I have to fix this myself.

The battery would go dead after sitting for a week so I pulled the neg cable and checked amperage between the cable and the battery terminal. After everything goes to sleep I am getting around 450 ma drain that goes away when I pull the ATC fuse.

Can anyone tell me what is on that circuit or where the problem might be? The push button 4wd functions correctly but it is like a module is not going to sleep. Would it be the transfer case control module? Can I just buy one and install or does it have to be programmed once you install it?

Thanks in advance for any help or ideas

 

Are you parking it at the chopper pad? I'd suggest if you are working offshore, and having to leave it for a week, is there not 110 ac available? If so, buy a small trickle charger to keep the battery up, do you have a block or dipstick heater?

 

I really need to fix the problem instead of working around it