Thank for the info so we replaced batteries powered up got car back running ,ran for good while then fault came back first 74 status and then the 0063 fault looking further the wires on the AC/DC connector looks somewhat suspect so removed connector remove wires and reconnect seemed problem went away they have #14 wire being used thought that's was possible issue returned to service ran for maybe a day then shutdown again same fault reset car looking at the board wiggle connector and relays chatter on same board think it's called Sema board gonna replace that board and maybe the connector so we'll see.