Selector knob is in 2H. In one case it switched itself into 4 wheel drive on its own. Light comes on about once a week. Turns itself off when truck is restarted as a rule.Truck has about 191000 miles on it. Live in Phoenix AZ. Hardly ever use 4 wheel drive. Have seen some dialog to check electrical connections. Would it hurt anything to remove the fuse to the TCCM and disable the 4 wheel drive?