A4 Mk1
Testing control unit input values
Checking Hall sender for camshaft position -G40
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Note: The Hall sender -G40 serves to synchronise the TDC position of No.1 cylinder and is needed for the quick-start function. Checking voltage supply
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If the specification is not attained:
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Testing earth supply
If the specification is not attained:
If no wiring fault is detected and no voltage was present between contacts 1+3:
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If no wiring fault is detected and voltage was present between contacts 1+3: Testing signal wiring
If no fault is found:
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