Fault Code Description |
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Plausibility check on the nitrogen oxide sensor downstream of the SCR catalytic converter (oxygen sensor signal) in coasting overrun mode. The fault is detected if the oxygen sensor signal drops below the limit value. Limit value: 0,18 |
Fault Code Conditions | |
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General Conditions |
The vehicle is in sleep coasting/overrun mode. 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): 50 ms |
Service Plan |
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1. Check the nitrogen oxide sensor for dirt contamination and correct installation. 2. Check line and plug connections 3. Replace NOx sensor after 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 a nitrogen oxide sensor is replaced, the following service function must be carried out: SCR system adjustments and adaptations, SCR exhaust emission sensor system. |