Flow Speedo stopped working

[dicky14]

Hi guys, I have a flow Speedo in my 4wd buggy, doing practice a few weeks ago the car ran fine, it then stopped, thought lipo cut out had triggered. Checked the car over last weekend to find the switch wires had come off the switch. Removed the switch and connected the wires together, the Speedo won't switch on. Has any body got any ideas what could be wrong? My initial thoughts are the Bec has failed. Thanks in advance.