| 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. diagnosis of catalytic converter), the relevant position of the numerical code is set from 1 to 0. |
| This diagnosis is performed at regular intervals during normal driving. 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 diagnosis, it is then stored in the fault memory. |
| The readiness code is erased if the fault memory is erased or if there is an interruption to the voltage supply. |
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