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Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control Module (ECM) Diagnostic Trouble Codes - 7 Of 11 >> ECM-431D: Leak Diagnostic Unit, Preheating. Signal Too Low (B5254T2; B6294S2; B6294T; 2005-2006) >> Signal too low >> Information >> Fault-tracing information

Fault-tracing information

Fault-tracing is not followed by verification for this fault.

HINT: After the diagnostic trouble codes (DTCs) are erased, the function of the leak diagnostic unit can be checked by running a quick test of the fuel tank system in the vehicle communication socket. If there is a fault, the fault status will be "FAULT FOUND" on the leak diagnostic unit. 

The information can be displayed again or fault-tracing this fault can be interrupted.