2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 159
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
Service instruction
none
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
