XC70 AWD L6-3.2L VIN 98 B6324S (2009)
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.
Together, this constitutes a component designation, e.g. 3/2.