Originally Posted by crapmaster

I just bought a 2012 RX450h with the factory Towing Preparation package, this showed on the spec sheet, and there is a grille behind the front driver side wheel, which seems to indicate the transmission cooler is there.

This thread has been very helpful, I ordered the Curt 14143 hitch and the Curt 56083 T-connector and installed both myself, fairly straight forward. But, the trailer lights don't work. I checked the fuse, the 30A one labeled "trailer lights" is there (#44 in the fuse box), but the one next to it (#43 labeled "trailer battery") was missing. I installed a 20A fuse but still no lights. I measured the signals on the 4-pin flat connector with a volt-meter, but there is nothing.

Since I have the towing preparation package, I should not need any additional hardware, correct ? I am wondering though, if I need the control module. I checked the passenger side trunk, where the module is supposed to be, i removed the tray and the panel, but can't find a module. I may be looking at the wrong place, but it is not that crowded as I was expecting from other people's post, I only saw one connected cable there, going through a grommet on the trunk floor, see photo1. Then under the tail light assembly, I did find a connector, which has nothing connected to it, is this the one that the control module should be, see photo2 ? It was wrapped to some foam padding.

Any help would be appreciated. If I am missing the control module, I'm planning to order the part 118255 as the others here have done.