2004-2007 Honda Aquatrax ARX1200N3/T3/T3D Factory Service Manual, Page 469Get this manual
METERSWITCHES 8Push the "ID SET" buttonThe digits of the registered ID number start blinking9Push and hold the "ID SET" button for at least secondsThe warning buzzer sounds once, the entered ID numbers are displayed for seconds and the display returns to normal "000" cannot be registered"ID SET" BUTTON
To change the ID number 1Fit the safety lanyard clip to the base of the engine stop switch to turn on the display2Press and hold the "ID No button for at least secondsThe ID Nomark and the first digit of the ID number come on and start blinkingARX1200T3N3 shown: ID NoMARK "ID No BUTTON