| Reading and erasing engine control unit fault memory |
| Special tools and workshop equipment required |
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| Vehicle diagnosis, testing and information system -VAS 5051- |
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| Connect vehicle diagnosis, testing and information system -VAS 5051- as follows: |
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| Connect diagnostic lead -VAS 5051/1- or -VAS 5051/3- to diagnostic connection. |
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| Start engine and run at idling speed. |
| Only if engine does not start: |
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| Press key on display for “Vehicle self-diagnosis”. |
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| Press key “01 - Engine electronics” on display. |
| The control unit identification and coding are indicated on the display. |
| Select diagnostic function: |
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| Press key “02 - Interrogate fault memory” on display. |
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| If no fault is stored in engine control unit “0 fault detected” is displayed. |
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| If faults are stored in the engine control unit, these are shown one below the other on the display. |
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| Press key “05 - Erase fault memory” on display. |
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| Press function “06-End output”. |
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