Anyone with PIWIS?

[RED!]

I ended up just paying for the activation through FoD and yes, it was prob more expensive than going through PIWIS but didn’t want to wait as I had a trip coming up.

Do you have a backup before you bought it and Are you able to upload you settings so someone can compare?

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[raizz]

Note that the lower the number, the faster. This is a debounce rate. The lowest is supposed to be 0 (meaning raw, real-time number). I would not go that low- Taycan does not seem to interpolate transitions between speed displayed vs. Tesla.

I don’t have the HUD on my car but the instrument cluster can definitely keep up with my current 20 ms setting (I will go into garage and change this to 50 ms later today). 20ms is a bit too fast where if you’re in traffic maintaining a low speed, you will see it jitter and go from 20 mph -> 19 -> 20 in a short amount of time.

You said in the first post that it should be adjusted by 20ms (i understand it means 20-40-60-80-100), but is it possible to adjust it to 50ms?

Well, first of all, I changed it to your recommended value of 100ms and it's really dramatic.

and i can confirmed that the frame rate of the instrument panel, HUD, and passenger's display are all linked.

 

[jakeCT]

You said in the first post that it should be adjusted by 20ms (i understand it means 20-40-60-80-100), but is it possible to adjust it to 50ms?

Well, first of all, I changed it to your recommended value of 100ms and it's really dramatic.

and i can confirmed that the frame rate of the instrument panel, HUD, and passenger's display are all linked.

I updated my original post to note the 20ms increment constraint. https://www.taycanforum.com/forum/threads/anyone-with-piwis.20946/page-8#post-517726

Mine is currently set to 60ms and I’m quite happy with it.

 

[raizz]

I updated my original post to note the 20ms increment constraint. https://www.taycanforum.com/forum/threads/anyone-with-piwis.20946/page-8#post-517726

Mine is currently set to 60ms and I’m quite happy with it.

Thank you so much for sharing the information.

actually, there was the same coding when I was driving a BMW
I loved this feature, and I'm so glad it's available in Porsche. (I'm especially happy that the speedometer, which was moving slowly like a lag, is finally doing his job)

let me also try 60ms

do you have any other functions you've found?

 

[jakeCT]

Thank you so much for sharing the information.

actually, there was the same coding when I was driving a BMW
I loved this feature, and I'm so glad it's available in Porsche. (I'm especially happy that the speedometer, which was moving slowly like a lag, is finally doing his job)

let me also try 60ms

do you have any other functions you've found?

Yes see all my posts on this same thread- high-beam assist twilight settings, steering wheel heating set temperature, etc.

Here’s one I had thought of posting:

BCM2: terminal_control: deactivation_time_kl15

KL15 refers to accessory powered state (with engine/motor not running)

The default is 30 minutes after which the car will always power down all accessories, screens, HVAC, etc. In other EVs like Tesla, interacting with controls like volume will extend this time; unfortunately with Porsche it would always turn off at the set time.

I’ve set mine to 90 minutes for being able to enjoy music and AC while detailing the car’s interior.

 

[RED!]

Has anyone managed to code Active Lane Keeping (ALK) to the J1? I’ve got LKA and ACC

Any news on this?
I'm getting ready to take my car in (in Toronto) to get Matrix, Rear Cross Traffic, and the mirrors to flash when you leave the car and there's a car in your lane (I forget what it's called). I'd LOVE to add ALK to the mix.

 

[raizz]

Any news on this?
I'm getting ready to take my car in (in Toronto) to get Matrix, Rear Cross Traffic, and the mirrors to flash when you leave the car and there's a car in your lane (I forget what it's called). I'd LOVE to add ALK to the mix.

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

 

[Porsche-Guru]

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

Hi @raizz

Thanks for confirming. I presume it can still be done in PIWIS offline mode.

Can you please publish the steps here or DM?

Many thanks.

 

[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

I’m willing to try it. What is your PIWIS set up so I can have the same success as you?

 

[RED!]

I’m willing to try it. What is your PIWIS set up so I can have the same success as you?

I’d love to know a bit more about it. I’ve got a 2024 but I have a garage with a proper PIWIS and license so I assume that should reduce risk.

 

[howardmw]

Doing the coding DYI should not be a problem for anyone comfortable using PIWIS. I note that you do need to have engineering mode, and for the Taycan I believe you also need the latest version of PIWS v.3. I had first attempted/failed at first using 2 earlier versions as well as the cheaper 6154 OBDII dongle, and then finally had success using Piwis 3 v.43.6 and a VNCI adapter which I bought here:

https://www.aliexpress.us/item/3256806804843614.html

While the earlier versions of PIWIS do connect to the car, I believe only the latest version is able to code all of the Taycan modules, or at least that was my experience.

 

[questionmillennium]

Are you talking about coding for ALK? Do you know how?

 

[howardmw]

I just did the coding to activate the Euro spec matrix headlights. My car already has ALK, so I never looked into if it can be activated and what needs to be coded. But if you can find out which modules and what changes, the PIWIS setup I got would allow you to do the coding.. If you google "ALK Activation Taycan PIWIS," you should be able to find someone who has posted the details.

 

[RED!]

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

 

[Porsche-Guru]

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

@RED!
Thanks for the detailed write-up. I have a 2023 model and it has (most likely all the hardware to activate ALK, as it was available under FOD until last year), so I am going to give this a go in a couple of weeks (when I get some time).

1) Do you happen to have the list of all PR codes?

For e.g. PR number 6I6 for Active Lane Keeping.
2) What is the PR number for InnoDrive?

3) Also, does PIWIS inform which modules need to be selected after making a PR number change that will need ‘Automatic Coding’?

Thank you for your support…

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