How to Read and Write Opel Astra J 2012 Denso ECU by OBD With PCMTuner

Pcmtuner new test feedback: “Today I made the first job with my pcmtuner.
Dpf off.
Opel astra j 2012 1.7 DTJ 110hp Ecu Denso.
Read/Write via OBD module 42, checksum made by pcm-tuner
All go flawless, I have read eeprom and Flash! I have also used a stable power supply 13.6.