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Home >> Volvo >> 2004 >> S40 T-5, Standard >> Repair and Diagnosis >> Electrical >> Charging Systems >> Electrical Components - Design And Function (544 Body) >> Climate Control Module (CCM) (2004-2011) >> Diagnostic Functions >> Climate Control Module (CCM) Diagnostic System
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Climate Control Module (CCM) Diagnostic System

The climate control module (CCM) has a built-in diagnostic system which continuously monitors internal functions and input and output signals.