Last night I noticed the MFWD is staying engaged on my 4310. The light on the rocker switch comes on when engaged and goes off when not engaged but it stays in four wheel. I did not have a chance to look at it last night so but since the light comes on I'm guessing it is not a blown fuse and that it is a wiring issue. Does anyone have advice on where to start or where the solenoid is that actuates the four wheel drive?