BMW Electrical Troubleshooting Manual E30 description of the catalogue:

In the program Electrical Troubleshooting Manual E30, E36 1984-98, E31 1991-96, RHD & LHD the full information on all electronics of the automobile is submitted. All electric circuits on E30, E36 1984-98, E31 1991-96, with the left and right rudder, the European and American markets. The information is submitted in many languages - Deutsch, English, Francais, Italiano, Nederlands, Espanol, Scenska.