Fault Code Description |
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Monitoring of the correction factors for nitrogen oxide sensor upstream of SCR catalytic converter. The fault is set when: - The NOx correction factor (gradient) does not lie between the minimum and maximum gradient. - The NOx correction factor (deviation) does not lie between the minimum and maximum deviation. Minimum gradient: 800 Maximum gradient: 1200 Minimum deviation: -200 Maximum deviation: 200 |
Fault Code Conditions | |
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General Conditions |
The fault is checked during sensor initialisation. Control unit voltage: 9.5 V to 16 V. |
Terminal Condition |
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Driving Conditions |
Fault Time Condition |
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The fault is entered if it is present for longer than the following period (debounce time): 655350 ms |
Service Plan |
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Replace the NOx sensor before SCR catalytic converter. |
Fault Impact |
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None |
Warnings | |
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Warning Lights |
None |
Control Center Messages |
Service Notes |
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If the nitrogen oxide sensor upstream 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. |