Cruise Control doesn't work on 2007 Suzuki Grand Vitara

If the computer gets reset, the next time you try to apply the cruise control light on the dash flashes, then goes away.
I have OBDCOM, Is there anyway to troubleshoot this?

The OBD2 will display some of the problems if it is a code that will be shared/set a code for drivetrain. I just looked in Alldata there is a lot of information, wiring diagrams and cruise control component location. There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate