volvo Workshop Repair Guides

Volvo Workshop Manuals

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The descriptions below apply in general to all wiring diagrams, although not all sections are necessarily contained.

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, for example, x/2.

Combined these give a component designation, for example, 3/2.

At the end there is a list of components, where, with the help of the component designation, you can read off the name of the component, for example,

Relays and Modules > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Engine Control Module > Component Information > Diagrams > Diagram Information and Instructions > Page 649

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