Imagine this etharp. You sell a new machine to the customer. The code is given to the customers Tech. The code gets into the hands of the operators. ( and don't tell me this would not happen.) Now we have operators changing speeds, Acceleration, auto decal, Hydraulic speeds and any of the settings that are accessible thru the dash display. In this case you may see the customer getting sick and tired of the operators changing settings that could cause damage to the operator, the product and the machine. This was my attempt to convince you that there may be other motives to keep the codes under wraps other than the Big Bad Dealers. Diagnosing issues thru the dash display is a big time saver and a good thing not a bad thing. There is not one customer that I know of that has not been taken care of.