ok guys,everything else works,speedo, lights etc. when i click it into 4×4,nothing. i traced the two wires to the front differential,which are brown/white and grey.with the 4×4 switch on i get a 12 volt reading to the front diff. from the grey wire.but the front diff. wont engage. and the 4×4 light icon is not coming on in the speedo cluster. I play hard but not abusive to my polaris, i didn’t hear anything break in the front differential. any thoughts?