[VashonRobotics]

We ran into this very problem at our last competition. Two of the DC motors on the bot are the new style. Symptom: Sam module lights on, LEDS to motor controllers on. No control from game controllers EXCEPT the one NXT motor that the bot has, it still worked normally. All wiring was gone through - no tinned wire ends in motor controllers just bare copper, Anderson Power Pole connectors at battery, short USB cable with ferrite core. I think this tells us that the game controller, FCS, Sam module, and NXT were all working, the problem had to be in the Motor Controller(s). A power off and on again and it worked fine.