Hello, I am a maintenance man at a CNC company. I am currently working on a Daewoo Puma V15-2SP Serial #2V150040 with fanuc series 16-T controls. I currently have an alarm no. 2003 over current in the control circuit I am trying to troubleshoot. Would anyone be able to help me narrow down my search? so far My supervisor has had me change all I/O modules and the Board (with used modules from other machines assumed in working order) they connect to. I am new to maintenance so troubleshooting large CNC machines is new to me and he is trying to teach me. any help would be greatly appreciated!