B8 S4/S5 Clutch Position Sensor Wiring

[Max B8]

Hey all, back again with another question.

I am wiring a clutch position sensor, and the wiring diagram I am following has a loose end (to me). I cannot figure out what this means.

331202

Specifically, I am trying to figure out pin 2 (green/grey) from the clutch position sensor, but it seems to just go to "18", and is not referenced anywhere else in the manual. Does anyone know what 18 means, and how to figure that out? Thank you!

[rand0mher0]

Pin 41 of the T94 connector on the ECU, goes through the red 17 pin connector in the junction box into the engine harness
https://i.imgur.com/7yyy77O.png

[Max B8]

Pin 41 of the T94 connector on the ECU, goes through the red 17 pin connector in the junction box into the engine harness
https://i.imgur.com/7yyy77O.png

Thank you! I ended up at the same conclusion on various other pages, but that manual looks much nicer. Where did you get that?

[Smac770]

The wiring diagrams, along with all the workshop manuals, are available from erwin.audiusa.com. Pay for a day, download all the PDFs for your VIN. https://www.audiworld.com/forums/q5-sq5-mkii-discussion-218/q5-dipstick-3069333/page5/#post25902766