2C28 - P2197

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

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2C28

2C28 - P2197

Information saved in

DME

Fault code

2C28 - P2197

Fault text

Oxygen sensor before catalytic converter 2, system check

Fault description

O2 Sensor Signal Biased/Stuck Lean (Bank 2 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