A reduced insertion force mezzanine connector is used to couple first and second circuit boards. The list may include not only controllable characteristics but also the available range for each control, the impact of each adjustment, or both. Simplified cryptography for realizing these systems is also presented. During maintenance, this arrangement provides for easy removal and installation of the steering angle sensor. Provisions can be made to dispose of the transaction in various ways, based on input by the teller as to the outcome of the offer to the customer.