Anyone with PIWIS?

[questionmillennium]

This LOOKS like the right answer, can someone who's done it verify it's correct?


Coding a 2024 Porsche Taycan with PIWIS 4 for Active Lane Keeping (ALK) is significantly more restricted than on previous models due to increased security measures like SFD2 (Vehicle Diagnostic Protection). [1]
On MY24+ vehicles, many modules are locked, and changes often require a VIN-based activation code rather than just traditional coding changes. However, if your hardware supports it, the general workflow for an ALK retrofit (assuming you have the proper security tokens or are working in Engineering Mode) follows these steps: [1, 2, 3]

1. Preparations

• Power Supply: Connect a battery charger rated for at least 90A. A low-voltage drop during coding can "brick" control units.
• VCI Connection: Connect your PIWIS 4 Tester to the OBD2 port and ensure it is recognized by the VCI Manager. [4, 5, 6, 7]

2. Updating Vehicle Data (VO Coding)
To permanently inform the car that it should have ALK, you must add the corresponding PR-number to the vehicle's "Order":

1. In the main menu, select Diagnostics and let it auto-detect your Taycan.
2. Press F7 to enter the Additional Menu.
3. Select Maintenance of vehicle data.
4. Navigate through the families until you find the assistance systems.
5. Search for the ALK related code (often involving PR numbers like 6I6 for Active Lane Keeping).
6. Change the value to "Installed" or the appropriate activation code, then press F8 to save the changes to the car's permanent record. [8, 9]

3. Automatic Coding of Modules
Once the Vehicle Data is updated, you must re-code the relevant modules so they "see" the new feature:

1. Return to the Control Unit Selection (Overview) screen.
2. Select the following critical modules (multi-select is possible):
   • ZFAS (Zentrales Fahrerassistenzsystem - Driver Assistance)
   • Kombiinstrument (Instrument Cluster)
   • PCM (Central Computer)
   • Front Camera
3. Go to the Coding/Programming tab and select Automatic Coding.
4. Follow the on-screen prompts. PIWIS will now push the correct settings based on the updated PR-number you saved in Step 2. [10, 11, 12, 13]

4. Calibration and Final Steps

• Fault Memory: After coding, the dashboard will likely light up with errors. Use the Overview menu, press F7, and select Read all fault memories and delete.
• Calibration: If the front camera or radar sensors were newly installed or significantly altered, you may need to perform a Guided Calibration in the ZFAS module. [13, 14]

Important Warning for 2024 Models:
If your PIWIS 4 does not have an active online connection to Porsche's backend, you may be blocked from writing data to these modules due to the SFD2 protection. In many cases, 2024 owners find that purchasing ALK as a Function on Demand (FoD) through the Porsche Connect Store is the only reliable way to bypass these security locks. [1, 15, 16, 17]
Are you currently seeing any SFD2 lock messages when attempting to access the ZFAS or Kombi modules?

[1] https://www.taycanforum.com
[2] https://rennlist.com
[3] https://rennlist.com
[4] https://static.nhtsa.gov
[5] https://static.nhtsa.gov
[6] https://www.youtube.com
[7] https://www.facebook.com
[8] https://static.nhtsa.gov
[9] https://static.nhtsa.gov
[10] https://www.reddit.com
[11] https://static.nhtsa.gov
[12] https://www.taycanforum.com
[13] https://static.nhtsa.gov
[14] https://www.macanforum.com
[15] https://connect-store.porsche.com
[16] https://connect-store.porsche.com
[17] https://connect-store.porsche.com

This looks like it comes from ChatGPT. Is this accurate?

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[Taycan4S_UK]

Is it possible to update VO with different allows so it shows up in the app ?

 

[clayman]

Can anyone with a Taycan GTS Sport Turismo read me what your original chassis control ride heights are? I accidentally wiped them out.

 

[whitex]

Can anyone with a Taycan GTS Sport Turismo read me what your original chassis control ride heights are? I accidentally wiped them out.

Would auto-coding the affected ECU restore it to factory defaults for your region (assuming you haven't changed the global region settings)?

 

[mystermykee]

Can anyone with a Taycan GTS Sport Turismo read me what your original chassis control ride heights are? I accidentally wiped them out.

Recalibrate the height sensors in PASM maintenance tab. It's probably easier to get a precise measurement every time from bottom lip of wheel to fender instead of trying to eyeball the center of the wheel.

 

[RED!]

This looks like it comes from ChatGPT. Is this accurate?

It’s a summary I made with Ai from the credited references. I’m asking if anyone has experience. Seems to map out but I’d love someone who has experience to comment

 

[questionmillennium]

I'm using ALK by coding

The function works well without any problems on my car

It is not possible with manual coding, and you have to do automatic coding

If communication is lost while performing this process, the vehicle may become a brick or all adaptation values may be lost

I will let you know if you want to try it with your own risk

Just following up on this.

 

[whitex]

Did anyone figure out how to make J1.1 Taycan use WiFi for internet?

 

[questionmillennium]

I hate to bump this thread again, but I really want to know how to get ALK vía PIWIS

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