2010 BMW 128i Convertible (E88) L6-3.0L (N52K) P Code Charts
none
P0040
2C24 – P0040
Information saved in
DME
Fault code
2C24 – P0040
Fault text
Oxygen sensors before catalytic converter mixed up
Fault description
O2 Sensor Signals Swapped Bank 1 Sensor 1 / Bank 2
Sensor 1
Condition for fault identification
Test condition:
Monitoring of interchanged O2 sensors
Implausible O2 sensor signal at idle and during highway
operation
Engine speed exceeds 288 rpm
No overrun cutoff
No fault memories
Terminal condition: Terminal 15, engine on
Voltage condition:
none
Condition for fault memory entry
Lambda control for both banks at control limit
Action in service
Replace pre-cat O2 sensors.
Fault effect and breakdown warning
