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Home >> Audi >> 2025 >> A4 Quattro Premium Plus >> Repair and Diagnosis >> Quick Lookups >> Electrical Component Locations >> Component Locations: Control Modules In Middle Part Of Vehicle >> -Component Locations: Control Modules In Middle Part Of Vehicle >> Memory Seat/Steering Column Adjustment Control Module -J136- / Passenger Memory Seat Control Module -J521- COMPONENT LOCATION AND CONNECTOR END VIEW >> Pin Arrangements Passenger Memory Seat Control Module -J521-
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Pin Arrangements Passenger Memory Seat Control Module -J521-

-T20b- (A) Designation   -T20b- (A) Designation
1 Comfort System CAN-Bus High   11 Comfort System CAN-Bus Low
2     12  
3 Coding line   13  
4     14 Front Passenger's Seat Adjustment Control Head -E471-
5     15 Front Passenger's Seat Adjustment Control Head -E471-
6     16 Front Passenger's Seat Adjustment Control Head -E471-
7     17 Front Passenger's Seat Adjustment Control Head -E471-
8 Front Passenger's Seat Adjustment Control Head -E471-   18  
9     19 Front Passenger's Seat Adjustment Control Head -E471-
10     20 Coding line
-T4ab- (C) Designation   -T26c- (D) Designation   -T26a- (E) Designation
1 Terminal 30   1 Front Passenger's Backrest Adjustment Motor -V46-   1  
2     2     2  
3 Terminal 31   3     3 Front Passenger's Seat Fore/Aft Adjustment Motor -V31-
4     4     4  
      5     5 Front Passenger's Seat Fore/Aft Adjustment Motor -V31-
      6     6  
      7     7 Front Passenger's Seat Inclination Adjustment Motor -V244-
      8     8 Front Passenger's Seat Fore/Aft Adjustment Motor -V31-
      9     9  
      10     10 Front Passenger's Seat Height Adjustment Motor -V246-
      11     11  
      12     12  
      13     13  
      14     14  
      15     15  
      16     16  
      17     17  
      18     18  
      19 Front Passenger's Backrest Adjustment Motor -V46-   19  
      20     20  
      21     21  
      22     22  
      23     23 Front Passenger's Seat Inclination Adjustment Motor -V244-
      24     24 Front Passenger's Seat Fore/Aft Adjustment Motor -V31-
      25     25 Front Passenger's Seat Height Adjustment Motor -V246-
      26     26  
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