2004-2007 Honda Aquatrax ARX1200N3/T3/T3D Factory Service Manual, Page 470Get this manual
METERSWITCHES 7Push the "ID No button until the third digit of the registered ID number is displayed"ID No BUTTON
THIRD DIGIT 8Push the "ID SET" buttonThe digits of the registered ID number start blinking
"ID SET" BUTTON
9Push and hold the "ID SET" button for at least secondsThe warning buzzer sounds once and the first digit of the ID number starts blinking If the incorrect ID number is entered, the warning buzzer sounds for seconds10.Follow steps to in "To create an ID number" (page 19-7)