Hello hopefully someone can help me with this one as this one is kicking my butt. Initially, I got called to this forklift cause the operator was in the back of a truck and the lift just completely shut off on him and since then they could not get it to start back up. We had it brought to the shop and had the drive motor rebuilt, and temp and wear sensors replaced. We just recently replaced the master controller on the right side. However the problem is I'm not getting any lights on the new controller. My boss ordered it from flight systems but my question is, do these main controllers need to be reprogrammed?. Thanks. I've check voltage every where and checked fuses and not sure what to do.