Seat heating and ventilation retrofit

[Артем Викторович]

Hello guys!
I have 991.2 turbo s 2017.
I bought it with 18 way seats without vent and heating options.
After that I just bought new climate control unit + 2 seats with these options.
I did coding in piwis and these new functions are working well.

After that I've noticed that my sport chrono knob on the wheel is not working.
When I install previous climate control - it starts working just after I plug wires in it.

What should I do to make SC knob to work?
All the codings are the same in engineering piwis mode.

Of course I did the ECU replace with read data from OLD ecu and write data in new ECU.

I've tried near everything.

Does anyone had the same problem after retrofiting seats and climate?

[Richard Hamilton]

I don't know for sure that this would work, but did you run Automatic Coding of all control Modules after adding venting and heating options in Vehicle Data Maintenance? 
 

From the Overview screen, press F7 for the additional menu.  Choose Maintenance of vehicle data.  On the M Numbers page, change the seat options to suit the seats you have fitted.  Code with F8 on the final screen.  Go back to Overview and press Ctrl & A to select all modules.  Click Coding/adaptations and run Automatic coding.

Like I say, I don't know if it will work for you, but this is the procedure for doing retrofits such as cruise control.

[Артем Викторович]

Yes, I did it same as you said.

With new climate ECM:

seat vent and heating works

SC Knob doesn't

 

With old climate ECM:

seat vent and heating doesn't work

SC knob works 

 

So, I guess I need the long code "Endconfiguration" which is in the climate ECM manual codings in engineering piwis.