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Home >> Volvo >> 2011 >> S40 T-5 R-Design >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Miscellaneous - Design And Function (544 Body) >> Engine Control Module (ECM) (B5244S4; 2004-2010) >> Diagnostic Functions >> Overview >> Substitute Value
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Substitute Value

For certain types of diagnostic trouble codes (DTCs), the missing signal is replaced with a substitute value so that the system can continue functioning.