486B

486B - P124C

Information saved in
DDE

Fault code
486B - P124C

Fault text
NOx sensor before DeNOx cat', plausibility:

Fault description
Monitoring correction factors for NOx sensor before the
SCR converter.
The diagnostic trouble code is logged when:
- the NOx correction factor (gradient) does not lie between
800 and 1200.
- the NOx correction factor (offset) does not lie between -
200 and 200.

Condition for fault identification
Test condition:
The error check runs while the sensor is being initialized.
Voltage condition:
The error check runs while the sensor is being initialized.

Condition for fault memory entry
Debounce (500 ms)

Action in service
Replace NOx sensor before SCR converter.

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
none