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Home >> Volvo >> 2007 >> S40 T-5, AWD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Miscellaneous - Design And Function (544 Body) >> Engine Control Module (ECM) (B5254T3; 2004-2007) >> Diagnostic Functions >> Overview >> Emissions Related Diagnostic Functions
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Emissions Related Diagnostic Functions

The engine control module (ECM) checks that the emissions 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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