well just for anyone wondering and ever have the same problem.the digital disply does the 4 wheel drive .if it dont read any movement the 4 wheel wont engage.my installer took apart the digital display and it was coroded from water leaking in.after drying it with air and cleaning all the contacts the dispaly still wont work but know it will go into 4 wheel.ohh by the way i also figured out to reset the belt safty too.it is totaly different than what it calls for on a 07 to reset the belt safty.