where to get wiring diagrams?

["The MaZe" <thezeeuw@xxxxxx>]

Hi All!

Can somebody please tell me where i possibly can get a wiring diagram for a
'86 320i? The problem is the motor-oil indicator remains lit allthough there
is enough oil (dipstick checked, reads almost max). Possible cause are
defective sensor and/or broken circuit (right?). With this diagram i hope to
find out which pins on the connector to check to find out what exactly is
the problem.
Any further help is appreciated...
Greetinx,
MaZe ( thezeeuw@domain.elided )

------------------------------