HaulGauge manufactures an OBD plug-in that allows for vehicle and trailer weight calculations without the need for a scale. They're looking for a test LC200 to run some calibration values. If you're in the Provo area and able/willing to help, please touch base with Thomas Corie: tcorie@halllogic.com
Haul Gauge: Know what you tow.
Haul Gauge is a simple module that plugs into your vehicle's OBDII port and through an app on your smart phone, tells you your vehicle's tongue weight, pin weight, payload, and total vehicle and trailer weight combined.* *2008 or newer. Weigh functions excluded on Toyota vehicles.
www.haulgauge.com