Home >> BMW >> 2017 >> 320i Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Self Diagnosis - Diagnostic Trouble Codes (N20 & N26) >> Fault Code Tests >> DTC P3024: BMW DTC 129201; DME -- O2 Sensor Initialization Error WRAF-Ic (Bank 1 Sensor 1) >> Fault effect and breakdown warning