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

Condition for fault memory entry
Lambda control for both banks at control limit

Action in service
Check O2 sensors and reverse connections as indicated.

Fault effect and breakdown warning


Driver information
Warning light:
MIL ON

Service instruction
none