2006 Cayenne turbo S parking heater mystery

[Anders Flodin]

I am having some trouble with my parking heater aka auxiliary heater. The Piwis can´t communicate with the control unit.

The WSM states that the control module is right behind the rear parking help lights, under the inner roof trim trim.

But upon inspection that is where I have my panoramic roof motors so it seems like the control unit for the heater is located somewhere else with the panoramic roof option?

Anybody knows where??

 

And there are no cables or antenna cables flopping around in the area, if that was the case, some PO might have taken it out for some reason, so that is why I believe it is located somewhere else.

 

Thanks,

Anders

[Loren]

[Anders Flodin]

Right, that is from the WSM, but note that the car in the WSM does not have the panoramic roof. The motors and control unit for the panoramic roof is right where the Aux. heater control unit is supposed to be. So for combined options of panoramic roof and Aux. heater the control unit for the latter has to be somewhere else. I have taken down the panels so I can see into this space and there is no control unit just motors for the panoramic roof and its accompanying sun shade on a big roll. So where is the alternate location?

Edited November 29, 2021 by Anders Flodin
improve clarity

[Anders Flodin]

 

So parking heater antenna is supposed to be on driver side, under rear spoiler. I did not find any antenna there. The option code for the parking heater is there, the piwis says that it is there and the unit IS under the driver side front fender where it is supposed to be, fuel pump, exhaust pipe, all there.

 

On the pass-side, under rear spoiler there is what looks like an antenna that resembles what is depicted from the WSM, I will have to read up on if that is another antenna for something else, have not been able to locate where it goes. The hunt goes on....