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Home >> Volvo >> 2002 >> S80 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 35 (Control Modules - Design And Function - 2 Of 4) >> Engine Control Module (ECM) (B5244S; B5244S6; 2003-2006) >> 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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