The tips following wiring diagrams apply for 1996 Volvo 850 series. tips-volvo-850-wiring-diagramHerein you will find detail specification, description and illustration of Volvo 859 Central electrical unit (includes fuses, relays, and connection on rails), ignition switch, cable harness and connectors, routing of cable harness in the car, branching points, electrical distribution unit, and ground points. Here you can see how the components are connected and in most case their internal wiring. A chart shows which functions are electronically connected to each other at the various positions on the switch (in this case the ignition switch). There is a component number for each component. At the back of this book, you will find a complete component list where you can see what each component is called.