Will Foxflash read and write Renault DCM3.5 ECU via OBD? or Bench?
Yes, foxflash will do it via OBD mode.
Here is the user report:
Renault Megane 3
1.5DCI
DCM3.4
Read/Write via OBD successfully.
Voltage 12V+.
Time for write is about 10 minutes.
Tip to maintain ignition: 1st gear, press and hold start buttom for 10seconds and then the ignition is permanently turned on.