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Home >> Volvo >> 2007 >> S40 Base, 2.4 38, Automatic >> Repair and Diagnosis >> Electrical >> Charging Systems >> Miscellaneous Electrical Components - Design And Function (544 Body) >> Phone Module (PHM) >> Diagnostic Functions (2009-2011) >> Notes

Diagnostic Functions (2009-2011): Notes

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