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Home >> Volvo >> 2007 >> V70 Base, 2.5 59, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) Diagnostic Trouble Codes (DTC) - 7 Of 14 >> ECM-431D: Leak Diagnostic Unit, Faulty Signal (B5254T4; 2004) >> Fault-tracing >> DMTL, test result = "Problem found"

DMTL, test result = "Problem found"

Check the leak diagnostic unit connectors. Check for contact resistance and oxidation.

Check the hose between the leak diagnostic unit and the EVAP canister. Check for blockages.

Try a new leak diagnostic unit if no fault is found during the above fault-tracing.