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Home >> Volvo >> 2007 >> S60 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Accessories Control Systems >> Control Modules - Design And Function - 4 Of 4 >> Upper Electronic Module (2001-2004) >> Diagnostic Functions >> General
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Diagnostic Functions: General

The upper electronic module (UEM) has a built-in diagnostic system, the Volvo on-board diagnostic (OBD) system, which continuously monitors itself and the input and output signals.

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