| Fault Code Description |
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The position deviations between the current measurement and measurement conducted with the new actuator with the exhaust-gas recirculation valve opened and closed are calculated in the adaptation phase of the exhaust-gas recirculation valve. The long-term drift fault of the exhaust-gas recirculation valve is detected if the absolute difference between the newly taught-in adaptation value and the adaptation value taught-in during the first cycle exceeds the limit value. Limit value: 6.01 % |
| Fault Code Conditions | |
|---|---|
| General Conditions |
The check takes place when the exhaust-gas recirculation valve adaptation function is active. Control unit voltage: 9.5 V to 16 V. |
| Terminal Condition |
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| Driving Conditions | |
| Fault Time Condition |
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| Service Plan |
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For electrical EGR valve: Replace EGR valve. For pneumatic EGR valve: Check vacuum system between following components and repair if necessary: - Vacuum reservoir. - Vacuum fuel tank. - Pressure converter for bypass flap of EGR cooler. - Vacuum unit for bypass flap of EGR cooler (diaphragm may be torn). - Pressure converter for EGR valve. - Vacuum unit for EGR valve (diaphragm may be torn). Look out for porous/cracked hoses! If the vacuum system is OK: Replace EGR valve. |
| 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 exhaust-gas recirculation valve has been replaced, the following service function must be carried out: Delete adaptations, air mass system. |