ICON idle system giving me fits

my 2006 9400I has The Icon Idle System In It And Its Driving Me Nuts. The Dash Light Went Out Causing The WhOle System To Not Work. Got That Fixed Then After I Left The Shop The System Stopped Working. You Can Set The System Fine And It Idles The Truck Till The Cab TEmpature Reaches The Desired Temp Then It Shuts Down The Engine. When It Comes Time For The System To Start The Engine Back Up It Sounds The "Engine Startup" Alarm But Then Nothing Happens And The Engine Does Not Start Up. I Noticed That The Icon Indicator Light Flashes A Trouble Code Of359. ThE Shop I Had The Truck Worked On Gave Me A List Of Trouble Codes And Instructions Before I Left SO I Know What The Trouble Code MeanS WhicH Is Telling Me That The System Cannot Automatically Start The Engine. UnfortunateLy It Does Not Tell Me How To Remedy The Problem. Would Anybody Out There Happen To Know Why And How To Fix This Problem? I Don't Know When I Will Be Able To Make It Back To The Shop Where Anybody Within 500 Miles Knows Anything About The Icon System And How To Work On It. Hell It Took Me 2 Months To Make It There Just To Get The Indicator Light Fixed.