On the Subject of Blue Arrows
Like a guide, pointing at the completely wrong thing.
On the module are 4 directional buttons, and a display screen in the middle.
If the buttons are not Blue, you're looking at a different module.
On the screen is a coordinate within the first grid below. Find where that spot is, and assign each arrow a letter relative to that position, by giving the letter directly above it to the Up button, the letter directly below it to the Down button, and etc. If the position is on the edge of the chart or next to a bolded letter in a cell, loop to the other side of the chart and use the first non-bolded letter.
Next, determine the Priority String using the instructions given.
To disarm the module, press all four buttons in the correct order based on the Priority String. That is, the first button's letter that appears in the Priority String reading from left to right is the first move, and then the second, and so on.
Pressing an incorrect button will reset the module and give a new coordinate.