Monday, August 5, 2019

2C9E - P0038

2020 BMW 128i Coupe (E82) L6-3.0L (N51) Diagnostic Trouble Codes ( DTC ): Service instruction



none









2C9E - P0038 (DME)



2C9E - P0038







Information saved in



DME









Fault code



2C9E - P0038









Fault text



Oxygen sensor heating behind catalytic converter, activation









Fault description



HO2S Heater Control Circuit High (Bank 1 Sensor 2)









Condition for fault identification



Test condition:





Driver circuit diagnosis for O2 sensor heater UBatt > 10V





Sensors installed No fault memories





Terminal condition: Terminal 15, engine on Voltage condition:





none









Condition for fault memory entry



Active immediately after terminal 15 change; electr. faults entered within a few seconds









Action in service



Visual inspection of wires, DME plug and O2 sensor for damage



Check wires



Check plug-in connections DME <=> Wiring harness



<=> Downstream O2 sensor behind catalyst for Bank 1





Replace O2 sensor



Replace DME







Fault effect and breakdown warning







Driver information Warning light: MIL ON

No comments:

Post a Comment