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Home >> Volvo >> 2011 >> S40 T-5 R-Design >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Miscellaneous - Design And Function (544 Body) >> Engine Control Module (ECM) (B5244S4; 2004-2010) >> Diagnostic Functions >> Misfire Diagnostic >> Misfire Diagnostic >> Diagnostic Trouble Code (DTC) Management
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Diagnostic Trouble Code (DTC) Management

Diagnostic trouble codes (DTC) for misfiring will light the malfunction indicator lamp (MIL).

The engine control module (ECM) determines how much the engine is misfiring by counting the number of misfires during a certain number of engine revolutions.

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