2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 132
Fault text
Oxygen sensor before catalytic converter, not connected
Fault description
O2 Sensor Exhaust Sample Error (Bank 1 Sensor 1)
Condition for fault identification
Test condition:
O2 sensor test
O2 sensor indicates lean mixture although engine operates at
part or full load
Terminal condition: Terminal 15, engine on
Voltage condition:
none
Condition for fault memory entry
O2 sensor voltage >4.8 V at part-load (sensor registers air)
Action in service
Determine whether sensor is corrected threaded into place
Check exhaust system for leaks
Check the plug-in connection
Fault effect and breakdown warning
Driver information
Warning light:
MIL ON
Service instruction
none
2C3C
2C3C - P2415
Information saved in
DME
Fault code
2C3C - P2415
Fault text
Oxygen sensor before catalytic converter 2, not connected
Fault description
O2 Sensor Exhaust Sample Error (Bank 2 Sensor 1)
Condition for fault identification
Test condition:
O2 sensor test
O2 sensor indicates lean mixture although engine operates at
part or full load
Terminal condition: Terminal 15, engine on
Voltage condition:
none
Condition for fault memory entry
O2 sensor voltage >4.8 V at part-load (sensor registers air)
Action in service
Determine whether sensor is corrected threaded into place
Check exhaust system for leaks
Check the plug-in connection
Fault effect and breakdown warning
