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Home >> Volvo >> 2004 >> S40 LSE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 47 (Electrical Components - Design And Function (544 Body)) >> Brake Control Module (BCM) (2004-2010) >> 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. A fault which is detected in the most recent operating cycle is defined as permanent. Other faults are defined as intermittent. An operating cycle involves ignition on, the vehicle speed exceeding 20 km/h and the ignition being switched off.