I reset the electrical system by disconnecting the battery for a bit while holding down the brake to completely drain the system. I reconnect the battery and I turn the unit on. It says "COdE" I enter the 5 digit # and it says error 1 then 2 then 3 etc...till it's locked up again. I have to reset the system again and still no dice. I am getting so frustrated. Does anyone have any suggestions as to what I might be doing wrong. I called 2 different dealerships to get the code. My serial # is m4f429020a and the code is 21516. What could be possibly wrong here?