Please use https:// at the start of the address bar or this will not work.
Chrome Web (USB) serial support
First of all, please use Google Chrome for this
You should open a new tab, visit the following address:
then enable the "experimental-web-platform-features" option
New web-only diagnostic application
Select an ECU or module to continue
Select an ECU type:
Note for MEMS 1.9 ECUS: they are extremely awkward about reconnecting.
If you have a connection which stops, you need to turn off the car ignition for approx 15 seconds to let the ECU shut down fully, then try again.
This downloads a full ECU ROM dump, it includes the program code that the ECU runs and the calibrations (mapping)
It will take around 10 minutes and will show the progress, it is fine to interrupt or stop this, it will not cause any damage if you do
Commands (RC5 module)
Click the graph button next to live data items and they will be shown here