...and VKB123, thanks for the instructions on making the power supply. All my materials are en route to my house. Will be making one this weekend I hope. Already have new cable booster cadaver ready for dissection and amputation. Oh, I need one more thing - a high watt through hole resistor. Ill try to get something going there.

 

Glad you got it to work! Once you have the power supply built and attached you can take your time while working with the PIWIS so no time pressure at all. Sounds like it was a process but you got’er done!

 

Thanks. Glad to have done it. Had to be ready for alignment tomorrow am. Can't wait. My car will be perfect again..

 

Thanks for the v e r y usefull instruction. I think the Foxwell have accsess tol the calibation function.
I\m in for a test, and will post the result :-)

 

Ok, so now I have done the calibration according to ciak`s guide. As mentioned I use Foxwell 70i Pro scanner, and that works very well.
The calibration session works, in a way that all the steps in the procedure is possible to do, but the new height numbers is not stored in the ECU. The scanner tells med that session is ended, and OK, but the calibration is not OK.
When a run and active test on PASM every part of the system reply with ok, and I can se, and hear, ecah corner of the car sink/raise when doing the test. The air tank show 117 liter of compresed air.

So it seem like the airsuspension system "lives on a isolated island". All functions are in place, but there are no communicatoen with the rest of the car. I.e; When entring sports mode, the only thing that happends is that the PDK program changes. No messages from the cluster, but I can read out a stored message "Spor mode faulty". When doing a total scan and code delet, there are 3 codes tha not can be cleared;
- C12097 Chek air condtitioner control unit faulty memory content.
- C1208A Fault in PASM control unit
- No comunication with rear lid control unit
In addition I get "fault, servo motor deactivated/test step abortet, Negative Respons Key:AA", and "Negative repsons Key;24"

How is the aircondtitioner control unit relatedt to the PASM-system? I ask this because this a message I get when doing steps in the PASM menue on the sanner. Anyone who knows where the airco contrlunit is located in the car, and where the PASM controlunit is located?

 

After replacing the compressor the system works again. But I get some strange numbers. The deviation about 250mm. Also I get some warning that the fill level is not plausible. I use the icarsoft OBD scanner to get the Infos. Does anyone has an idea, where is the problem?

 

If the warning is on the cluster and says raising is not possible, it is likely because there is not enough compressed air in the tank, especially if you just replaced the pump. After any component replace, it is good to let the car idle for about 20 minutes, so that the compressor gets the tank to the proper pressure, and enable filling or draining the shocks.
I am not familiar with the icarsoft, I have the PIWIS2. In my tool, there is a repair diagnostic section where you can test the entire air suspension/level, and you will get info if all completed with no errors, or what errors show up.
Also, you can access each component individually to debug, like the pump or air tank, you will see the pressure for it.

BTW, with the pump, did you replace the relay switch too in the trunk? These often go bad, and should be replaced with a pump too.
For your height, I would probably get 2 jacks, raise car to the default height and use the height sensor calibration to store the settings while on the jacks. This way the car will know what 402mm should be at, or 406mm.
250mm is a huge deviation. It is 25cm, or about 10 inches.

 

The level of the body looks OK. It also moves to higher or lower level when I change the mode. It just shows the odd numbers. And I get the warning for the level not plausible. But I don't know what the icarsoft shows really. Sometimes 2 of the sensors showed about 0. But I do not know when it changes. It's quite strange.

 

Where did you get your PIWIS2? I purchased one for my Panamera from Singapore or something a few years ago for over $1,100 and I have NEVER been able to use mine to do anything. Except for once when I first got it but that was it. Now I
it wont even recognized the car even if I input the car type manually. So either I'm doing something wrong or this thing is just a paperweight. What I need is someone with basic PIWIS knowledge to use teamviewer or remote access to see if they can get it to do anything or at least let me know if its junk. I would gladly cash app you and pay you a reasonable fee for 30 minutes of your time before committing to buying another one. Email me if you're interested in helping and let me know what you charge. Thanks. Em3rd@yahoo.com

 

The numbers in each row are supposed to be for this measurement, while car is in Normal mode.


These are the factory values set:

 

Try this:

- Make sure laptop is charged, plugged into wall
- Make sure car is fully charged (take it for a drive for an hour). This will give battery a chance to top up.
- Make sure all cables are in good condition for PIWIS2
- When ready, have the laptop powered on and logged in, but do not start the PIWIS2 program
- Turn on car power in ignition (do not start engine, just turn on power to car), then turn off AC and radio (fully) to preserve battery charge
- Connect the ODB2 cable to car
- Connect the ODB2 cable (other end) to the PIWIS2 controller box (small gray box with 2 connectors on one side - it will fit only into one of them, the right one as you are looking at the connectors), make sure connection is good (connections twisted into place)
- Connect the USB cable (long cable in PIWIS2 setup), to the same PIWIS2 gray controller box (it will be the left twist connector on the box, as you are looking at it)
- Connect other end of USB cable (long one), to the USB port of the PIWIS2 laptop (USB connection is next to the AC power plug, under a rubber cover)
- Start the PIWIS2 software
- Select your car model and year, inside the diagnostic section
- On overview screen, select the subsystem you want to look at (DME is one example), then click NEXT, then click NO (this bypasses creation of ticket details that dealers normally have to do, but you do not).
You should see your car VIN number recognized, this is how you know PIWIS2 is working.


Try this video, see if it helps. Main thing is car power should be on before you connect cables, connect cables to the gray box, then connect USB cable to the notebook and then start the software on laptop.

 

Well, I followed your instructions precisely to the letter and the only issue I ran across is where you said go to diagnostic section and input the model and year. It never asked for the year for Panameras. But either way it didn't work. It always ended with (Model line could not be determined). Then the list would be grayed out and wont go any further. Voltage was 12.4 the whole time. Man I was hoping it would work. This really Sucks. Thanks.

 

use google, and try to PD the control box. It has lights on it, and you may be able to learn if that box is the issue or the cables. Hope it works for you.

 

My issue seems to be a software issue. (I keep buying replacement SSDs). Contact the seller and ask for help/advice. Maybe they can sell you a replacement part once they help you diagnose what the problem is...

 

So can I use this to raise one corner? Wife drove over a parking spot bump. Got it aligned, reminding me front left corner camber out of spec. I trust this alignment shop so maybe just raise it a little? Thanks!