Technical DPF or Sensor issue?

[deejays]

Sounds good. Do you have to have cables, or can you connect via a wireless OBDII Code reader View attachment 476090
like I can with google free car scanner app

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Either. But to access all modules you will need an cable adapter as per the attached from https://www.multiecuscan.net/SupportedVehiclesList.aspx
I use a Vgate vLinker MS Bluetooth which enable access to all modules without any extra interfacing cables. I suggest you have a look at https://www.multiecuscan.net/