Item Name
1
Constant plus connection
2
Constant plus extension kit
3
Trailer control module
4
Relay for fog light
5
M6 ground connection
6
Left-hand tail light adaptor
connection
7
Cable leadthrough
8
13-pin contact insert
9
Parking distance control system
connection
10
Right-hand tail light adaptor
connection
Installing the electrical kit
1. Disconnect the negative battery terminal.
2. If necessary, remove the following covers and panels:
Right-hand and left-hand covering of the tail lights
-
Open the cable leadthrough on the left side
-
Left-hand side-spar covering (B-pillar)
-
Floor covering and battery cover on the left side
-
3. Starting in the luggage trunk, lead the cable end through the vehicle's cable leadthrough
(Fig. 1/9) on the left side to the outside to the socket holder plate (Fig. 1/10).
4. Cut the cable leading to the socket to size.
Installing the socket
5. Fit the socket gasket and connect the cable harness to the socket housing in accordance with
the pin assignment plan (Fig. 1/10) and push the rubber grommet against the socket.
6. Screw the socket onto the socket holder plate (Fig. 1/10) using the supplied screws and nuts.
Connecting the tail lights and the trailer module
7. Disconnect the plug-in connector of the left tail light (Fig. 1/8) and connect it to the matching
counterparts on the cable harness. Make sure that the plugs lock firmly into place.
8. Connect the black wires with the eyelet to the vehicle's ground point (Fig. 1/7).
9. Plug the 12-pin plug and the 18-pin plug into the trailer control module (Fig. 1/6).
10. Fasten the trailer control module (Fig. 1/6) in the left-hand pillar above the tail light using
some velcro tape and the supplied fastening screw.
12
Wire
red
red, yellow,
black/yellow
black
6p/8p.
brown/white
1p.
6p/8p.
306 510 391 105 - 001 - 17/08
Installation instructions:
Electrical system for towing hitch
Connecting point on vehicle
Footwell in driver's cab
Above left-hand tail light
Above left-hand tail light
Above left-hand tail light
Above left-hand tail light
Left tail light
Rear panel, left side
Socket holder plate
Parking distance control unit under right-
hand tail light
Right-hand tail light
Fiat Ducato Kasten, Bus