FCOM allows you to retrofit trailer hitch on cars using CCF data. Procedure is very simple:

1. Install trailer control module
2. Run FCOM, Connect to BCM (Body module)
3. Select "Configuration"
4. If prompted whether you want AS-BUILT data or configuration, select the latter
5. Find "Trailer module" option in list
6. Change it to either 13-pin or 7-pin socket

Usage

This procedure applies to all cars with CCF configuration:

Additional information

Video showing the procedure is available here: https://www.obdtester.com/videos/fcom_trailer_hitch_retrofitting