Possible causes – HO2S12 and HO2S22 sensors harness is open or shorted– HO2S12 and HO2S22 sensors circuit connectors (wrong connection)– Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0041 BMW OBD Code Description The heated oxygen sensor (HO2S) monitor determines if the HO2S signal response for a…