A4 Quattro Wagon L4-2.0L Turbo (BPG) (2005)
4. Not used
Version "2"
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Disconnect connector - A - from Air Quality Sensor G238.
-
Release catch - B - and slide Air Quality Sensor G238 -C - downwards.
Terminal assignment in connector - A -
1. B+ (terminal "15")
2. Negative (terminal "31")
3. Signal wire to operating and display module, Climatronic Control Module J255 (square-wave signal cannot be measured)