| The readiness codes are two eight-digit numerical codes which indicate the status of the emission-relevant diagnoses. |
| If the diagnosis for a system was successfully performed (e.g. exhaust gas recirculation system), 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 the 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, i.e all relevant points will be set to 1, through deletion of the fault memory. |
| Generation of readiness code refers to the activation of the diagnostic functions such as diagnosis of fuel supply, diagnosis of other systems etc. |
| Special tools and workshop equipment required |
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| Vehicle system tester -V.A.G 1552- with cable -V.A.G 1551/3, 3A, 3B oder 3C- |
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| Connect vehicle system tester -V.A.G 1552- and enter address word 01 “Engine electronics” → Chap. 01-1. |
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| Select function 08 “Read measured value block” and display group number 017. |
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