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:
Lambda controllers for the two cylinder banks display
mutual splay exceeding 20 % (factor >1.2 or <0,8)
Terminal condition: Engine running
Voltage condition:
battery voltage<11V oder Ubatt > 16 volts

Condition for fault memory entry
Conditions for monitoring faults must be present longer than
10 seconds from point at which lambda control assumes
active operation

Action in service
Plug in oxygen sensors before cat. correctly, check wiring
harness as indicated, determine whether O2 sensor wires on
the DME module plug are connected to correct terminals.

Fault effect and breakdown warning


Driver information
Warning light:
MIL on (in 2nd driving cycle); possible combustion miss
until fault is detected

Service instruction
none