The following Activations are necessary to ensure that the newly fitted parts are properly recognized and are ready to use. Make sure to check if proper Cooling Fans are installed, if not you may need to retrofit those prior to the actual Trailer Hitch Retrofit. Information regarding the Installation can be found in the Repair Manuals, the Wiring Diagrams, the Parts Catalog and/or the Instructions included in the Retrofitting Kit. trailer hitch retrofits) or can be found in the factory repair manuals and wiring diagrams. Additional details for the mechanical/electronic work needed are part of the retrofitting instructions provided by the parts supplier (i.e.
These instructions may not cover mechanical/electronic details, they will only list the the diagnostic side (coding etc.).
