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Self-diagnosis
Technical data of self-diagnosis
Equipped with
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◆ Fault memory: Non-volatile memory and volatile memory1)
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◆ Rapid data transfer
1)
Will be cancelled after 40th engine start if fault has not occurred again.
Control unit identification
; connecting fault reader V.A.G 1551 and selecting engine electronics control unit
Control unit functions
Note:
The Motronic control unit is equipped with various functions. Some functions can be carried out with ignition switched on or with engine running. The following table details the prerequisites for carrying out the individual functions.
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Function performable with
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Ignition switched on
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Engine idling
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02
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Interrogate fault memory
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x
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x
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03
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Final control diagnosis
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x
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-
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04
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Introduction of basic setting1)
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-
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x
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05
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Erase fault memory
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-
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x
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06
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End output
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x
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x
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08
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Read measured value block
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x
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x
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1)
The fault lamp in the dash panel lights up in function "Introduction of basic setting".
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