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 exceeds a limit value. Limit value: 0.23 |
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. |