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Home >> Volvo >> 2004 >> S40 LSE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Miscellaneous Components - Design And Function (544 Body)) >> Transmission Control Module (TCM) (Aw50/51 AWD; 2005-2010) >> Diagnostic Functions >> Diagnostic Trouble Codes (DTCS)

Diagnostic Trouble Codes (DTCS)

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A diagnostic trouble code (DTC) is stored if the control module detects a fault. If a fault disappears for any reason after the diagnostic trouble code (DTC) has been permanently stored in the control module, information about the fault remains stored in the control module.