Tutorial: use PCMTuner and the new Godiag GPT Boot Adapter to read VW EDC17CP14 ECU.
First, we connect the godiag adapter to the ecu via pcmflash pinout diagram.
Make sure godiag is set to Auto.
Connect 12V to 13v power supply to the godiag.
Don’t connect power to the pcmtuner.
Insert pcmtuner dongle to PC.
Run pcmflash 1.2.0.
Select protocol 71
Identify ECU
Read ECU until finished.
Video reference: