Get a cheap Haynes manual for your truck or just look on the cover to the fusebox if you have one, Some websites may also have PDF files on the same information; look around.
where can i find a vacuum line diagram for 1989 ford 2.9 liter engine
Haynes Manuals have all diagrams for the ranger including the one you seek
A diagram of what component?
but a chilton manual for it.
A wiring diagram for a 1994 Ford Ranger can be found in the Chilton's manual for that vehicle. You can also find this wiring diagram at most auto parts stores.
diagram of fusebox on 1988 ford ranger
You can find a fuse panel diagram for a 1986 Ford Ranger XL in the owner's manual. You can also find it at select auto part stores.
Call your local dealer.
Owner's manual, or Library.
wiring diagram for 98 ford ranger door alarm
Chilton's Manual?
It should be in the owners manual.