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Home >> BMW >> 2013 >> 740Lxi >> Repair and Diagnosis >> Engine Performance >> System >> Self Diagnosis - N55 - Diagnostic Trouble Codes - DTC P1638 (BMW DTC 100001) Through DTC P10EB (BMW DTC 10BA41) >> DTC P12B9; BMW DTC 105201: Ambient pressure sensor, overrun: Pressure too high >> Condition for fault identification

Condition for fault identification

Test condition:

The fault is recognized when the barometric-pressure sensor deviates from the average for the pressure sensors (barometric pressure, boost pressure, intake-manifold pressure) by more than 70 mbar.

Potential problem source(s):

Terminal condition: none

Voltage condition:

Temperature condition:

Time condition:

Other conditions: