I just bought a used 660 and when I test drove it I put it in 4x4 no problem. When the seller loaded with the ramps he put it in 4x4 no problem. I got it home snd unloaded it and took it to some land that was just cleared for development. There were a lot of saplings and limbs laying everywhere. I tried to put it in 4x4 and it did nothing. The display stayed blank and I couldnt hear it engage. Its just my luck that I buy it and 10 minutes later break it. I unpluged the two electrical plugs from the front diff and it didnt help. I read that a fuse could be the problem. I didnt get a manual with it. Which fuse is it? Please help

 

I found the fuse it is a 3 amp. When I press the 4wd button, the relay clicks but that is all that happens.

 

bump

 

call the dealer...

 

After I press the 4x4 button I have to give it a little gas and then let off for it to engage. Same thing to disengage it.

 

I replaced the clicking relay and it fixed it!