Audi Workshop Service and Repair Manuals > A3 Mk1 > Power unit | Simos injection and ignition system (4-cylinder) | Mixture preparation system, electronic inj.,Gas | Checking auxiliary signals | Checking clutch pedal switch F36 (from model year 2002)

Checking voltage supply

–	Connect voltage tester -V.A.G 1527 B- as follows:

Connector Contact	Measure against
2	body earth

–	Switch on ignition.

t	LED must illuminate

If the LED does not illuminate:

–	Check the wiring of contact 2 between connector and fuse for open circuit/short to earth. → Current flow diagrams, Electrical fault finding and Fitting locations

If the LED illuminates:

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