FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Towbar, Wiring, 13-Pin













Towbar, wiring, 13-pin



















INTRODUCTION
- Read through all of the instructions before starting installation.
- Notifications and warning texts are for your safety and to minimize the risk of something breaking during installation.
- Ensure that all tools stated in the instructions are available before starting installation.
- Certain steps in the instructions are only presented in the form of images. Explanatory text is also given for more complicated steps.
- In the event of any problems with the instructions or the accessory, contact your local Volvo dealer.






Towbar, wiring, 13-pin





- Turn the ignition key to position 0.





- Lift out the cargo compartment carpet.





- Detach the rubber strip in the boot lid opening.





- Remove the sill trim panel by first pulling it forward until the two clips in the front edge release. Then pull it upward until the two clips in the top edge release.





- Fold the left-hand rear seat backrest forward.






Remove:
- the three clips in the top edge of the side panel
- the four plastic nuts in the lower edge of the side panel
- the connector to the cargo compartment lighting
- Lift out the side panel.





- Take three screws and nuts from the kit and install the connector in the bracket.





- Remove the rubber grommet in the floor and place it to one side, it shall not be used again.


Illustration A





Illustration B




- Insert the cable with the connector into the hole in the spare wheel well and install the rubber grommet.
- Adapt the length of the cable from the connector to the rubber grommet so that the cable is not too slack beneath the car.





- Plug the grey connector into the trailer module (TRM).
- Take the ground screw from the kit and secure the ground lead to the ground terminal in the rear crossmember. Torque tighten the screw, tightening torque: 10 Nm (7.5 lbf.ft.).
- Clamp up the cable harness at the existing cable harness using two tie straps from the kit. The white (W) cable is connected later to the fuse holder in step 12.

Points 11-14 apply to vehicles manufactured before w0946




- Remove the fuse holder in the cargo compartment. First press down the locking catches with a small screwdriver on the top and bottom, and then pull it out.
- Remove the cover on module 1. The cable must be connected and the fuse installed in fuse module 1, which has a black cover. Some vehicles are not equipped with module 3 and 4, but the connection must always be made in the module with a black cover.





- Connect the white (W) cable on the rear of fuse module 1, to fuse position 9 in the vacant socket.





- Take a 15A fuse from the kit and install it in position 9 in fuse module 1.





- Reinstall the fuse holders.
- Reinstall the cover.

Points 15-18 apply to vehicles manufactured after w0946. These vehicles only have one fuse holder/relay holder.




- Remove the fuse holder in the cargo compartment. First press down the locking catches with a small screwdriver on the top and bottom, and then pull it out.
- Remove the cover.





- Connect the white (W) cable on the rear of fuse module to fuse position 4, in the vacant socket.





Take a 15A fuse from the kit and install it in position 4 in fuse module.





- Reinstall the fuse holders.
- Reinstall the cover.





Checking the 13 pin connector.

Note! The trailer module (TRM) must be programmed with software in order to function correctly.

Position - Function
1. Left indicator lamps
2. Rear fog lamps
3. Ground
4. Right indicator lamps
5. Rear right-hand running light
6. Brake lamp
7. Rear left-hand running light
8. Reversing lamp
9. Power supply +12V
10. Charging +12V, only with the ignition switched on.
11. Ground
12. Not used
13. Ground





- Reinstall the connector and side panel in the cargo compartment.





- Reinstall the sill trim panel.





- Reinstall the rubber strip.





- Reinstall the cargo compartment carpet.





- Fold back the left-hand rear seat backrest.