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Home >> Volvo >> 2007 >> XC70 >> Repair and Diagnosis >> External Pages >> Different car >> Section 50 (Bulbs, Control Modules, Charging - Design And Function) >> Engine Control Module (ECM) (B5244S; 2003-2007) >> Diagnostic functions >> Overview >> Emission-related diagnostic functions
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Emission-related diagnostic functions

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The engine control module (ECM) checks that the emission-related systems are working. These systems are checked by running a diagnostic function. The diagnostic function checks the components and that the system is functioning.

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