2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 129
Fault effect and breakdown warning
Driver information
Warning light:
MIL ON
Service instruction
none
2C2C
2C2C - P2198
Information saved in
DME
Fault code
2C2C - P2198
Fault text
Oxygen sensor before catalytic converter 2, system check
Fault description
O2 Sensor Signal Biased/Stuck Rich (Bank 2 Sensor 1)
Condition for fault identification
Test condition:
Oxygen sensor before catalytic converter 2, system check
End of start phase
O2 sensor drifts toward rich
Terminal condition: Terminal 15, engine on
Voltage condition:
none
Condition for fault memory entry
After trim control fault; sensor indicates more than 18% too
rich
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
Service instruction
none
2C2D
2C2D - P2297
Information saved in
DME
Fault code
2C2D - P2297
Fault text
Oxygen sensor before catalytic converter, overrun check
Fault description
O2 Sensor Out of Range During Deceleration (Bank 1
