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Home >> BMW >> 2016 >> 335i Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 1084 (Self Diagnosis - Diagnostic Trouble Codes (N20 & N26)) >> Fault Code Tests >> DTC P12B9: BMW DTC 105201; DME -- Barometric Pressure Sensor 'A' After Running Diagnosis Pressure Too High >> Fault description

Fault description

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During the DME after-run the diagnosis determines whether the ambient pressure, intake-manifold pressure and charging pressure sensors are all registering a single pressure reading.

Fault monitoring conditions:

The fault is detected if the value measured by the ambient pressure sensor is too high relative to the mean value from the other pressure sensors.