Need electrical help

92 cab, need wiring diagram or just need location of fuse link for charging system. Had alt checked...is ok, but not charging battery???

The alternator is connected directly to the battery with no fuse.
If the alternator has been tested OK it may be that the IGN warning light circuit is incomplete. sometimes this circuit is used to excite the alternator..does your ignition light come on ? If not, check out this circuit also. J.

is your light working if not check blue wire beside battery if looks ok take apart earth blue wire on car side not end going down to alternotor this shud put light on dash if does do same at alt earth blue wire if no light you have prob on that wire going across engine which is the prpb some times