This Electrical Schematic Diagram applies for 1985 Porsche 928 S car series. In this manual you will find complete description of electrical system of 1985 Porsche 928 S which includes topics on Lamps, Body, Instrument Cluster and Indicators, Ventilation and Heating, Radio, ABS, Alarms System, Trailer Coupling and Digital Engine Electronics, also Central Electrical System.
The wiring diagram comprises eight individual wiring diagrams and one legend. They are subdivided into coordinate fields. Each individual wiring diagram comprises a part of the central electrical-system within a dash-dot frame. This part of the central electrical system shows all the lines and relays required for individual wiring diagram. The ground-connecting points are designated with “MP” and their location is shown in a vehicle diagram.