Fault Information


Fault Code Description
Monitoring of the correction factor for nitrogen oxide sensor downstream of SCR catalytic converter.
The fault is set when:
- The NOx correction factor (gradient) does not lie between the lower and upper limit.
- The NOx correction factor (deviation) does not lie between the lower and upper limit.
Lower limit (gradient): 800
Upper limit (gradient): 1200
Lower limit (deviation): -200
Upper limit (deviation): 200
Fault Code Conditions
General Conditions The fault is checked during sensor initialisation.
Control unit voltage: 9.5 V to 16 V.
Terminal Condition

Driving Conditions
Fault Time Condition
The fault is entered if it is present for longer than the following period (debounce time): 655350 ms
Service Plan
Replace nitrogen oxide sensor after SCR catalytic converter.
Fault Impact
None
Warnings
Warning Lights None
Control Center Messages
Service Notes
If the nitrogen oxide sensor downstream of the SCR catalytic converter is replaced, the following service function must be carried out: SCR system adjustments and adaptations, SCR exhaust emission sensor system.