791race

Have a 2001 CH613 and have PTT software and a Drewlinq adapter. It won't communicate with the Truck. The adapter lights up so I know its getting power but the software and the adapter don't see the truck?? Does anyone have schematics on the ECM and or ECU to the plug. Thanks Have already talked to Drewlinq support and Diesel laptops support.... It Might be the truck or a setting I don't have right???