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Often an owner, driver or mechanic can make a quick fix if they have the correct information. Below you will find some links that will help you with technical information. We have some links that have the engine and truck diagnostic codes for Volvo and freightliner as well as some wiring diagrams.

Please remember that these are generic fault codes and that to get proper repairs you need to visit your local OE Truck Dealer for advanced diagnostics.


Volvo Trucks

Volvo Truck Diagnostics and Engine Fault Codes


Freightliner Trucks

Freightliner Cascadia Wiring Diagram

Freightliner Cascadia Manual

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