| Only engines with engine identification characters AUM, ARX |
| The readiness code is an 8-digit numerical code that provides information on the status of the emission-relevant diagnosis. |
| If the diagnosis for a system was successfully performed (e.g. secondary air system), the relevant position of the numerical code is set from 1 to 0. |
| Readiness code 00000000 means that the individual diagnoses have been successfully performed. |
| Diagnoses in normal operation are performed at regular intervals. If repairs have been done on a system relevant for the exhaust gas it is recommended to generate the readiness code as this guarantees that these systems operate according to the specifications. If a fault is detected during the diagnosis it is entered in the fault memory. |
| Readiness Code is erased after the fault memory is erased or if the power supply is interrupted. |
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