If anyone is still struggling with this, hopefully the below will help.
Use NCS Expert to read your CTM Module
Close NCS Expert (not needed but recommend you do it)
Edit the following line in your NETTODAT.TRC File (usually found in c:\NCSEXPER\WORK)
B 00300300,0010,00,F4,3B,31,07,FF,0A,28,0E,FF,1C,FF, 49,49,8C,45
(It should be the 4th line)
The value you want to change is the number after 0010, (in the example above 00)
Change the value to the speed in km/ph in HEX, so 30 km/ph = 1E, use
https://www.binaryhexconverter.com/d...-hex-converter if you need to work out the HEX value of any decimal number
The line should now look like
B 00300300,0010,1E,F4,3B,31,07,FF,0A,28,0E,FF,1C,FF, 49,49,8C,45
See how the value after 0010, is 1E, not 00 anymore?
Then in order to code the newly edited NETTODAT file to your car, save the file as NETTODAT.MAN, or just save the file, and rename in using File Explorer
Open NCS Expert again, load your coding profile
Click the "VIN/ZCS/FA" button (F1). The button labels change once again.
Click the "ZCS/FA f. ECU" button (F3).
In the "Choose CHASSIS" dialog box, select your chassis and click "OK".
In the "Choose ECU" dialog box, select one of the presented modules (for example "CAS", "EWS" or "EKM") and click "OK".
After a short moment, the top groupbox should now show information regarding your car.
Click the "Back" button (F6). The middle groupbox now shows the available modules and default job name.
Click the "Process ECU" button (F4).
In the "Choose ECU" dialog box, select the CTM module and click "OK".
Click "Reading ECU" button (F4)
Close the Notepad window that pops up with your current NETTODAT.TRC File (this is just a repeat of what you would have done at the start to get your CTM Module NETTODAT.TRC file)
Click the "Basic functions" button (F5).
In the "Choose basic function" dialog box, select "coapiCodeSgByNettoData" and click "OK".
In the following "coapiCodeSgByNettoData" dialog box, make sure the correct module is set for "CBD name" (CTM) and enter NETTODAT.MAN for "Nettodatenliste". Click "OK" to begin the nettodata coding job.