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Home >> Volvo >> 2004 >> S40 LSE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 47 (Electrical Components - Design And Function (544 Body)) >> Accessory USB Unit (AUU) (2008-2011) >> Diagnostic Functions (2009, 2010, 2011) >> Control Module

Control Module

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The control module has a built-in diagnostic system, Volvo Diagnostic, which continuously monitors internal functions as well as input and output signals.