XC90 AWD V8-4.4L VIN 85 B8444S (2005)
2006 Late Version
The descriptions below apply in general to all wiring diagram manuals, although not all sections are necessarily contained here.
A. Component Designation
Every component has a component designation that consists of two parts.
The first part is a type number that describes the type of component in question, for example 3/xx.
The second part of the designation is a serial number, e.g. x/2.
Combined these give a component designation, e.g. 3/2.