
Add steering wheel heating(Replace steering control module and clock spring)
Porsche only supply ordered functions from factory,if old steering wheel without heating,factory equipped steering control module and clock spring hardware without heating control electric parts and clock spring heating power supply PINs. Fortunately we can replace to heating support steering control and clock spring hardware and active functions if needed.
For add heating function, heated steering wheel and the steering wheel electronics control unit(Clock spring) must also be ordered and activated(VIN-specific enabling code) by PIWIS.For this upgrade will need your VIN number to pursche all active code (997/987 no active code needed).
Porsche 991/981/970/958.1 original with basic steering wheel(None multifunction and non shift peddles) upgrade to multifunction steering wheel ,need replace to new steering control module hardware can activate multifunction success.

1, Replaced to steering control module(Include clock spring) with heating support,991.1/981/958.1 heating and multifunction support steering control module (include clock spring) parts number: 958-652-568-14
997.2 heating and multifunction support steering control module parts number: 997-613-299-02 ,heating support clock spring parts number: 955-652-611-22


2, Buy heating and multifunction enable code,it’s related with VIN
3, Dealership install new steering control module and coding by PIWIS activate multifunction and heating, Steps here https://gpsadapter.us/blogs/installation-guide/add-heating-and-multifunction. Installed new steering control module without coding will get a lot of error messages in instrument display,because many ECUs need communication with steering control module.
4, Gpsadapter install to new steering wheel.
**Replace steering control module need PIWIS to coding and need inquiries your activated functions code(on-board computer,cruise control)in Porsche dealership system by VIN,calibrate steering control module need PIWIS also
This is Porsche official add steering wheel multifunction operating guide,forward for reference <Download>
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Replace steering wheel electronics control unit(include clock spring) work procedure:
1 Disconnect battery;
2 Remove drivers's airbag unit;
3 Remove original steering wheel;
4 Replace electronics control unit(Clock spring) and steering-column switch(Only for vehicles without multi-function steering wheel),original steering-column switch of multifunction control can keep connected also;


4.5 Slide cover(991.552.675.00.1E0)into the steering column casing;
4.6 Install steering column casing;
5 Code control units and calibrate steering angel sensor following step.
5.1 PIWIS Tester must be connected before switching on the ignition.Write basic coding from PCM.
5.1.1 Select Steering wheel electronics control unit. Press •F11“ to confirm the question “Create vehicle analysis log (VAL)?”.
Switch to the Maintenance/repairs menu.
5.1.2 Select Control unit replacement. Press •F12“ to continue.
5.1.3 Select Write data mode. Press •F12“ to continue.Press •F8“ to write basic information.
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