The processor has no password for programming. Remove the batteries, remove any PCMCIA backup cards, power-cycle the unit, and it will be default. If you have a PCMCIA backup/restore card, insert that, set automatic backup ON to the PC card in #123, set the time to 1:58am, (the date should still be defaulted to Jan 1), wait until the clock says 2:02am, then do a manual backup to the PC card in #124.