4X4 light help

I need help i cranked my truck and the 4x4 light was blinking it will not go into 4x4 when i turn the switch it stopped for a bit the i could put it in 4x4 then now its doing it all the time does anybody know what could be wrong i thought it might be something electrical but im not sure

 

no its off ive disconnect the swith and plugged it back in unplugged the battery to see if it would reset somthing still nothing anyways bump please someone help

 

can you take a pic of the 4x4 light. Most likely than not you are talking about the rear diff button

 

My clutch ped wuz hitting husky liner and not letting it go all the way down to the floor.trimed and works fine.