TT Quattro Roadster L4-1.8L Turbo (AMU) (2002)
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Select "Vehicle Self Diagnosis mode".
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Select vehicle system "01 - Engine electronics".
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Select Diagnosis Function "04 - Basic settings.
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Input "032" on keypad to select "Display group 032"
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Select "Q", button to confirm.
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Drive approx. 10 miles (15 kilometers) under normal driving conditions.
Channel 1 value (at idle) should be: