Problem:
Failed to write DAF XF106 Delphi ETC3 ECU via OBD with foxflash, read ok, write failed. Any idea?
Possible cause:
The current or voltage has problems.
Solution:
1. Use the blue OBD cable and ensure the device is properly connected.
2. Enter programming mode and attempt to read/write directly on the vehicle.
If it still fails, the ECU may be protected and cannot work with Foxflash ECU Programmer. You’d better use other tools to operate.