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 P1638; BMW DTC 100001: Throttle valve, function: jammed briefly >> Fault code