A4 Quattro Wagon L4-1.8L Turbo (ATW) (2000)
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Disconnect connector from TCM -J217-, located in front of right seat under the cover in the footwell.
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Connect test box VAG1598/20 to harness connector.
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Connect both 10 - pin connectors -2- to multi-function switch -F125- as shown in the illustration.
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Use multi-meter VAG1526A or Vehicle Diagnosis, Measuring and Information System VAS 5051
Transmission with Multi-function Transmission Range (TR) switch -F125- with 10 - pin connector, checking