Hi. as I look for help with few errors like code 1203 and aux override lamp flashing and the last one volt 11.4 on screen, I undestand that I have a problem with battery or alternator, so I checked the battery and it's o.k, I take the alternator (not an essy desassembly) to check and it is not working, I bring a new one, assembly all back and no errors at all, machine is working.