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Home >> BMW >> 2009 >> 550i Automatic >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Theory & Operation (N62) >> 1.15 Comprehensive Component Monitoring >> 1.15.2 Diagnosis of engine off time >> 1.15.2.1 CAN timersignal check

1.15.2.1 CAN timersignal check

If the timer message (received via CAN bus) is corrupt or missing for a calibrated period of time, a CUHRsig fault will be set.