Diagnostic Functions: Notes

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Fig 1: Identifying Control Module With Integrated Diagnostics

Courtesy of VOLVO CARS CORPORATION

The control module has integrated diagnostics, Volvo Diagnostic, which continuously monitors itself and the input and output signals. Any diagnostic trouble codes (DTCs) are stored in the control module. Diagnostic trouble codes (DTCs) can be read off later. The principle for presentation of information is the same as for other diagnostic systems.