Brother PDuff explains the esoteric and mystical art of programming the control codes in Bosh dishwasher control boards using model SHE44C06UC/22 as an example:

Control codes are particular to model. C0-C4. Your model is a C1 control. With unit turned off and fascia removed and module exposed, there are six buttons. Ignore the first button under display and label remaining buttons from left to right S1 S2 S3 S4 and S5. The leds above each button label L1 L2 L3 L4 and L5. Enter coding mode as follows:

Press and hold buttons S2 S3 S4 and S5 simultaneously, then turn dishwasher on using on/off switch. When in coding mode leds L2 L3 L4 and L5 will be blinking.

Release buttons S2 S3 S4 and S5 to view control coding in display. To change control coding, press button S2 as needed to scroll through codes. Your model is C1 or 21.

Turn dishwasher off to save control coding and exit mode. Reinstall control to console. Reinstall fascia. Check operation.

Source: Bosch Dishwasher control codes (C1-C9)?