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Home >> BMW >> 2013 >> 535xi >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Diagnostic Trouble Codes - 2 Of 2 (N55) >> Fault Code Tests >> DTC P0102, BMW DTC 2779: Mass or Volume Air Flow Sensor 'A' Circuit Low >> Fault description

Fault description

Diagnosis monitors the lower limit of the HFM signal's period duration.

Malfunction monitoring conditions

The fault is identified when the period duration of the HFM signal is less than 80 us.