2C24 - P0040

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



none









2C24



2C24 - P0040







Information saved in



DME









Fault code



2C24 - P0040









Fault text



Oxygen sensors before catalytic converter mixed up









Fault description



O2 Sensor Signals Swapped Bank 1 Sensor 1 / Bank 2 Sensor 1









Condition for fault identification



Test condition:





Monitoring of interchanged O2 sensors





Implausible O2 sensor signal at idle and during highway operation





Engine speed exceeds 288 rpm No overrun cutoff





No fault memories





Terminal condition: Terminal 15, engine on Voltage condition:





none









Condition for fault memory entry



Lambda control for both banks at control limit









Action in service



Replace pre-cat O2 sensors.









Fault effect and breakdown warning







Driver information Warning light: none

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