[FRC4ME]

This happend to team 339 at VCU. When the problem first manifested itself, we noticed that we had lost 5V power to the geartooth sensors, causing the robot to slam into the opposing alliance's wall in hybrid mode.

The next match, we noticed that we had lost 5V power to the "disable autonomous" switch, causing the robot to slam into the opposing alliance's wall in hybrid mode.

After that, we saw the "5V output low" light on the RC. Unable to find the short, we had to use a loaner (from 2004!) for the rest of the day.

After returning from VCU, I held the RC up to the light and noticed a metal shaving under one of the digital inputs. Clearing it solved the problem.