I have a 2016 P1000 EPS. I’ve looked through old threads and googled my heart out. Changed batteries, added all my accessories to a battery disconnect switch, and still my EPS does not work when I shift into 4WD. Light comes on as soon as I start driving in 4wd but goes off if I shift back to 2wd. Besides changing the whole EPS system I’ve run out of ideas. Anyone had this problem before?