Installation instructions:
Electrical system for towing hitch
Installing the electrical system
1. Disconnect the ground terminal of the battery.
2. If necessary, remove the following coverings and panels:
Loading edge covering
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Left and right covering inside the luggage trunk
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Rear end plate: Cover of the cable duct on the left side
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Remove the tail light on the left and on the right side.
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3. Slip the rubber grommet on the cable harness and adapt its length to the cable.
4. Starting in the luggage trunk, lead the cable end through the cable leadthrough to the outside
up to the socket holder plate (Fig. 1/7).
5. Insert the rubber grommet into the cable leadthrough (Fig. 1/6).
Installing the cable set with a bolted socket
6. Fit the socket gasket and connect the cable harness to the socket housing in accordance with
the pin assignment plan (Fig. 1/7) and push the rubber grommet against the socket.
7. Screw the socket onto the holding plate (Fig. 1/7) using the supplied screws and nuts.
8. Secure the cable harness using cable ties.
Connecting the tail lights
9. Lead the cable end with the gray/red cable along the rear end plate to the right-hand tail light
(Fig. 1/8).
10. Unplug the plug of the right-hand tail light and connect it to its counterpart on the cable
harness. Plug the residual plug back into the tail light. Make sure that the plugs lock firmly into
place.
11. Lead the cable end with the gray/black cable to the left-hand tail light (Fig. 1/3).
12. Unplug the plug of the left-hand tail light and connect it to its counterpart on the cable
harness. Plug the residual plug back into the tail light. Make sure that the plugs lock firmly into
place.
Vito/Viano ab 2003
313 176 391 102 - 003 - 09/13
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