Westfalia 303 189 300 113 Instructions De Montage page 15

Installation instructions:
Electrical system for towing hitch
Connecting the trailer control module
13. Lay the cable with the 15-pin connector (Fig. 3/2) along the vehicle's cable harness below the
front luggage trunk floor covering.
14. Plug the 15-pin plug (Fig. 3/2) into the trailer control module (Fig. 3/1).
15. Attach the trailer control module (Fig. 3/1) to the unused threaded pins in the luggage trunk
floor, using the enclosed plastic nuts. Make sure it is securely fastened!
16. Connect the brown wires with the eyelet to the vehicle's ground point X 498 (Fig. 3/3).
Connecting the back-up lights
17. Lay the green cable along the vehicle's cable harness on the right side up to the interleaved
connector X428 located behind the glovebox (Fig. 4/1).
18. Connect the green cable to the blue/yellow cable of the interleaved connector X428 (Fig. 4/2),
using the enclosed clamps.
19. Lay the white/green cable further up to the lighting module plug X12 above the pedals on the
left-hand side (Fig. 5/1).
20. Disconnect the black plug housing from the lighting module plug X12.
21. Connect the white/green cable (Fig. 5/2a) to
connect the black/red cable (Fig. 5/2b) to 2006
Connecting the power supply
22. Lay the red and the red/black cable properly through the sheet metal cross-beam to the
battery's positive terminal (Fig. 3/5).
23. Let the quick-connect receptacles of the red and red/black cables (Fig. 2/5) of the cable
harness and the supplied separate cables (Fig. 2/4) lock into place in one of the fuse holders
each (Fig. 3/4 or 2/3).
24. Install the yellow clip (Fig. 2/6).
25. Insert the fuse (Fig. 2/2) and fit the cover (Fig. 2/1).
Note
Ensure sufficient strain relief and correct installation of the fuse holder.
Checking correct operation
26. Reconnect the ground of the vehicle's battery.
27. Check the trailer function with the help of a suitable test instrument (with load resistors) or
with the help of a trailer.
28. Secure all cables using cable ties.
29. Refit any parts removed for installation.
BMW X3 2004- WESTFALIA Automotive GmbH
2006 , PIN 9 ;
, Pin 14 of the lighting module plug.
303 189 391 105 - 003 15