You would need to run a diagnostic mode. I googled it for you. Bosch states that you need to do the following:
Turn the washer knob to the 'off' or reset position 12 o'clock. 2. Turn the knob to the 6 o'clock position. 3. Press and hold the spin button. 4. While holding it, turn the knob to the 7 o'clock position. 5. Continue holding the spin button for about 5 seconds. 6. Release the button. 7. Turn the knob to off.
Please also google yourself to verify the procedure mentioned above.