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Home >> BMW >> 2011 >> X6 ActiveHybrid >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Theory & Operation (N63 ACTIVEHYBRID) >> Camshaft And Crankshaft Sensor Including Valve Timing >> 1.13.2 Crankshaft/Camshaft >> 1.13.2.2 Monitoring Function - Mechanical Reference Position Diagnosis

1.13.2.2 Monitoring Function - Mechanical Reference Position Diagnosis

P13B4, P13B5, P13B6, P13B7 

The position of the camshaft signal edges is compared to the CKP while the camshaft is in lock position (VANOS passive) at least once per driving cycle.

The fluctuation of all the camshaft edges compared to the designed position is averaged. Each time one camshaft signal edge fluctuation exceeds a maximum threshold value, the corresponding de-bounce counter is incremented. When the counter reaches a certain threshold, the error CAM_ref_crk_cam is delivered to error management.

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