OEM fitted Trailer Hitch

[bigfoot007]

I have just spent most of today trying to get the trailer hitch (MY03 cayenne turbo, it is fitted with the auto out/in system) to work, e.g. to extended and retract. There no error codes on the Durametric.

Checked all fuses = OK

removed module = nightmare to get those panels off!, just to get at the plugs

Went through the Diagnostics from Porsche, but they are a little confusing, but found no shorts etc.

Looked at the wiring diagram and decided to see if the hitch would move when I bypassed all the electronics, surprise, it did all the way out, problem is now I cant get it to go back in again, not sure if reversing the polarity to the motor would be too good!!

Has anyone had to go through the process of fixing their OEM system, and has a fool proof method of doing it?

[wvicary]

The module might need to reprogrammed or introduced via coding which you'll need the Porsche scan tool for. I recommend a visit to the dealer. Durametric can access the trailer module and check for codes but but I don't think it can do anything else.