| Fault Code Description |
|---|
|
The SCR exhaust emission system is being monitored. The fault is detected if the efficiency is too low. |
| Fault Code Conditions | |
|---|---|
| General Conditions |
Control unit voltage: 9.5 V to 16 V. |
| Terminal Condition |
|
| Driving Conditions | |
| Fault Time Condition |
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|
No debounce. |
| Service Plan |
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1. Check functioning of metering module (spray test), replace in the event of a malfunction. 2. Carry out an SCR system test using the diagnosis system. |
| Fault Impact |
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None |
| Warnings | |
|---|---|
| Warning Lights |
None |
| Control Center Messages | |
| Service Notes |
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Carry out the following service functions depending on which components have been renewed: - AdBlue: SCR system adjustments and adaptations, AdBlue (long-term adaptation factor). - Nitrogen oxide sensors: SCR system adjustments and adaptations, SCR exhaust emission sensor system. - Diesel particulate filter: Diesel particulate filter: register exchange. - SCR catalytic converter: SCR catalytic converter: register exchange. - Metering module: SCR system adjustments and adaptations, SCR metering module. - SCR tank system: SCR system adjustments and adaptations, SCR tank system. The fault cannot be deleted until the DDE has detected a functioning SCR system. For this purpose, complete a conditioning run until the Check Control message goes out. The fault memory can then be deleted. |