2C27 - P2195

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



none









2C27



2C27 - P2195







Information saved in



DME









Fault code



2C27 - P2195









Fault text



Oxygen sensor before catalytic converter, system check









Fault description



O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 1)









Condition for fault identification



Test condition:





After trim control fault; sensor indicates more than 18% too lean





Terminal condition: none Voltage condition:





none









Condition for fault memory entry



Terminal 15, engine on









Action in service



Check sensor wiring for short circuit; otherwise replace the suspect sensor









Fault effect and breakdown warning







Driver information Warning light: MIL ON

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