2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 128
none
2CF9 - P0123 (DME)
2CF9 - P0123
Information saved in
DME
Fault code
2CF9 - P0123
Fault text
Throttle-valve potentiometer
Fault description
Throttle/Pedal Position Sensor/Switch 'A' Circuit High
Condition for fault identification
Test condition:
none
Terminal condition: none
Voltage condition:
none
Condition for fault memory entry
none
Action in service
none
Fault effect and breakdown warning
Driver information
Warning light:
none
Service instruction
none
2C2B
2C2B - P2196
Information saved in
DME
Fault code
2C2B - P2196
Fault text
Oxygen sensor before catalytic converter, system check
Fault description
O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 1)
Condition for fault identification
Test condition:
After trim control fault; sensor indicates more than 18% too
rich
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
