i have a 2005 polaris magnum 330 4x4 , it all started when i rolled it backwards down a hill and busted the speedo and water got in it and it was down hill from there, 4wd would kick in when it wanted to and when it did it shattered the roller cage in the front diff. So i got a new speedo , and all new parts in the front diff. and i also replaced the ecm. I'm still having problems with the 4wd and the battery light flashes, the light for 4wd still comes on the speedo screen. But no power to the two wires that go down to the front diff.

can someone please help me
Thanks

 

Bad battery? not holding charge?(check that its charging 14-14.5 volts at battery while running) Plus AWD won't work unless has 12 volts to the system! If charging, have battery load tested,could be loosing voltage?Also not uncommon to have a new ecm to fail! PS Welcome to the forum!.OPT

 

i did and it shows 14 volts while running and 16 volts at a little higher rpms also i get no speed on the speedometer or rpms

 

Did you find what was wrong? I'm having the same problem where the battery light starts flashing at higher rpms. Checked voltage at battery its normal at idle then gets up to 17 at higher rpms. I have also changed the ecm and its a new battery.

 

welcom to the forum. if your reading that high of voltage then i'm guessing the recifier is bad. shouldn't read over 14.5 volts. +,-