eyup

i have an L reg nissan D21 pickup [For those who dont know, this is an older, uglier navara] and, as stated the revs, speedo and odomiter dont work at all. the rest of the dash, guages/lights etc work fine.

also, when i put it into 4 wheel drive, there is no light on the dash to inform me i have done so, as there is on most 4x4's. is there supposed to be one on this model??? and could these problems be related?

thanks in advance.