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Connect wiring harness - AN31.19-P-8080-03FFC

  1. Remove grommet (18) (is no longer needed).

    Connection schematic for wiring harness 

    Fig 1: Connection Schematic For Wiring Harness
    G04624605

    Routing diagram for wiring harness 

    Fig 2: Routing Diagram For Wiring Harness
    G04624606

    IMPORTANT

    On vehicles with Parktronic system (PTS ) code 220 the following steps must be carried out on the trailer hitch wiring harness before routing the trailer hitch wiring harness outside the vehicle: 

    1. ORIS wiring harness: 1.5 meters (0.75 mm2 ) Adapt the brown/white line (9) to the looped brown/white cable branch- off line using a voltage distributor (br/ws).

      IMPORTANT On vehicles without Parktronic system the looped brown/white cable branch-off line (br/ws) is tie back at the battery and fixed in position on the vehicle's own wiring harness.

      Fig 3: Identifying Brown\White Line
      G04624607
    2. Westfalia wiring harness:
      • Expose the brown/white line (br/ws) from the trailer hitch wiring harness (1) (see Figure below).
      • meters (0.75 mm2 ) Adapt brown/white line (9) to the exposed brown/white cable branch- off line (br/ws) using a voltage distributor.
        Fig 4: Identifying Trailer Hitch Wiring Harness, Brown\White Line
        G04624608

    3. Vehicles with Parktronic system (code 220) 

      • Slit the existing grommet (23) and insert trailer hitch wiring harness (1) into the grommet.
      • Insert grommet in the hole (24) and seal.
      • Remove the grommet of the trailer coupling wiring harness (1) which is no longer required.

      2. Vehicles without Parktronic system (code 220) 

      • Remove blind plug (23) from the hole (24).

      Shown on vehicle without Parktronic system (code 220) 

      Fig 5: Identifying Trailer Hitch Wiring Harness, Grommet And Grommet Holes
      G04624609

    4. All vehicles 

  4. Plug 3-pin coupling and 13-pin coupling from trailer hitch wiring harness (1) into socket housing (10) and seal with grommet (17).

    IMPORTANT It should be ensured that the sealing lip of the grommet (17) abuts the socket housing (10) without any creases.

  5. Fasten socket housing (10) to the bracket (19) of the trailer hitch with three 4.8x32 sheet metal screws.
  6. Fasten the trailer hitch wiring harness (1) to the eyelets of the crossmember (20) using tie straps (see arrows).
  7. Guide trailer coupling wiring harness (1) through the hole on the underfloor (see detail) and place into storage area recess.

    Shown on model 203 

    Fig 6: Identifying Trailer Hitch Wiring Harness, Extended Ground Line, Socket Housing And Grommet
    G04624610
  8. Route trailer coupling wiring harness (1) along the longitudinal member through opening (see arrow) and onto the wheelhouse and fix in place with felt strips.
  9. To extend the ground branch off line on the trailer hitch wiring harness (1), prepare an 800 mm long line with 2.5 mm2 with a 6 mm dia round cable lug in each case.
  10. Connect the extended ground line (21) to the ground cable branch-off line from the trailer hitch wiring harness (1) with a soldered connector (see magnified section).

    IMPORTANT Cut the round cable lug off the ground branch-off line on the trailer hitch wiring harness (1).

    Fig 7: Identifying Trailer Hitch Wiring Harness, Extended Ground Line And Ground (Left Taillamp In Trunk)
    G04624611
  11. Route the extended ground line (21) from the trailer hitch wiring harness (1) along the vehicle's own wiring harness to the left taillamp (W6/1) and fix in position.
  12. Fasten cable lug to ground (left taillamp in luggage compartment) (W6/1).
    Fig 8: Identifying Extended Ground Line And Trailer Hitch Wiring Harness
    G04624612
  13. Route the trailer hitch wiring harness (1) along the vehicle"s own wiring harnesses over the left wheelhouse (Figure on left) to the left cable duct and fix in position up to the branch-off line (see arrow in Figure on right).
  14. Route cable branch-off lines, red/blue (rt/ bl) and brown/white (br/ws), to rear fuse box (F4).
  15. Fasten lines with adhesive pads and tie straps supplied (Figure on left).
    Fig 9: Locating Trailer Hitch Wiring Harness
    G04624613
    Fig 10: Identifying Brown\White And Rear Fuse Box
    G04624614

    16. Vehicles without fuse block B 

      • Insert the fuse block (B) supplied.
      • Insert plug of the red auxiliary line (rt) in the free chamber E of the plug position 12 in the fuse block B (see magnified section on right).
      • Route red line (rt) along the vehicle's own wiring harness to the positive battery terminal and fix in position.
      • Fasten the cable lug of the red line (rt) to the positive battery terminal (see magnified section).
        Fig 11: Identifying Red Line And Fuse Block
        G04624615

    17. All vehicles 

  17. Insert red/blue (rt/bl) in the free chamber (D) of the plug position 12 in the fuse block (B).
    Fig 12: Identifying Fuse Block, Brown\White And Rear Fuse Box
    G04624616
  18. Assign fuse position 12 with a 25A fuse (arrow).

    IMPORTANT It should be pointed out to the customer that fuse 12 must only be fitted when towing a trailer as otherwise a remote consumer could discharge the battery.

    Fig 13: Identifying Rear Fuse Box
    G04624617
  19. Route the brown/white line (br/ws) with plug-in sleeve behind the rear fuse box (F4) to the pneumatic control unit with combined functionsA37).
  20. Detach and open white coupling from pneumatic control unit with (A37) combined functions (see magnified section).
  21. Insert brown/white cable (br/ws) into free chamber 15 in white coupling (see arrow).

    IMPORTANT If chamber 15 is assigned, adapter brown/white line (br/ws) to the line from chamber 15 with voltage distributor (Remove plug-in sleeve  ).

    Fig 14: Locating White Coupling
    G04624618
  22. Expose black/green line (sw/gn) and black/white line (sw/ws) from the cable duct and check with multimeter signal.

    IMPORTANT Left rear turn signal lamp has cable color black/green (sw/gn), Right rear turn signal lamp has cable color black/white (sw/ws).

    Fig 15: Identifying Cable Harness For Trailer Hitch
    G04624619
  23. Connect the black/green line (sw/gn) from the trailer hitch wiring harness (1) to the black/ green line (right rear turn signal lamp) by means of a voltage distributor (see magnified section).
  24. Connect black/white line (sw/ws) from the trailer coupling wiring harness (1) to the black/white line (left rear turn signal lamp) by means of a voltage distributor (see magnified section).
    Fig 16: Identifying Trailer Hitch Wiring Harness And Black\Green Line
    G04624620

    25. Vehicles with Westfalia wiring harness 

      • Expose gray/green line (gr/gn) for rear fog lamp from the cable duct and cut through.
      • Connect green/white line end (gn/ws) from the trailer hitch wiring harness (1) with a voltage distributor to the gray/green line end (gr/gn) which comes from the light module (N7-1)
      • Connect gray/green line end (gr/gn) from the trailer hitch wiring harness (1) with a voltage distributor to the gray/green line end (gr/gn) which goes to the left taillamp (E3) using a voltage distributor.
        Fig 17: Identifying Trailer Hitch Wiring Harness, Rear Fog Lamp Switchover Control Module And Rear Fog Lamp
        G04624621

      2. Vehicles with ORIS wiring harness 

      • Expose and cut through gray/green line (gr/gn) for rear fog lamp from the cable duct.
      • Detach the gray/green (gr/gn) line attached to the wiring harness with flat plug bushings attached on both sides from the wiring harness and cut through in the center.
        Fig 18: Identifying Gray\Green Line
        G04624622
      • In each case connect a gray/green line for the vehicle's own wiring harness by means of a voltage distributor to the line ends of the flat plug bushings.
      • Connect the relay enclosed as follows:
        • a Adapt the gray/green line from the vehicle's own wiring harness, coming from the light module, to circuit 86.
        • a Adapt the gray/green line from the vehicle's own wiring harness, going to the left taillamp, to circuit 87a.
        • a Adapt the gray/green line of the trailer hitch wiring harness to circuit 85.
      • Clip the relay into the right rear cable duct.
        Fig 19: Identifying Gray\Green Line
        G04624623
  26. Route the trailer hitch wiring harness (1) along the cable duct to the left A-pillar.
  27. Route the black 10-pin coupling to the light module (N7-1) behind the exterior lamp switch (26) and fit into a free chamber.

    IMPORTANT Coupling is coded.

    Fig 20: Identifying Trailer Hitch Wiring Harness, Exterior Lamp Switch And Light Module
    G04624624

    28. Vehicles with Parktronic system (code 220) 

    1. Route the brown/white extended line (br/ws) in the cable duct from the battery to the right footrest.
      Fig 21: Identifying Brown/White Extended Line
      G04624625
  29. Expose the brown/white line (br/ws) from the Parktronic system from the wiring harness as per the Figure.
    Fig 22: Identifying Brown/White Extended Line And PTS Control Module
    G04624626
  30. Connect brown/white line (br/ws) from the trailer hitch wiring harness and brown/white line (br/ ws) from the Parktronic system wiring harness to a voltage distributor.
  31. Fix lines in position on the vehicle's own wiring harness.
    Fig 23: Identifying Brown/White Line
    G04624627
  32. Place bracket (10) into spare wheel and attach with threaded connection (14).
  33. Place ball head (12) into bracket (10) and attach with retaining strap (16).
    Fig 24: Identifying Bracket, Threaded Connection, Ball Head, Bracket And Retaining Strap
    G04624628
  34. Glue on operating instructions plate (13) to paneling of rear end door.

    Shown on 210.0 

    Fig 25: Identifying Instructions Plate
    G04624629
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