Hi all
I took as a part exchange. It had a blocked dpf which I cleared but this code continues to be a problem

DF 226, induction damper, abnormal voltage,signal outside lower limit and no status

It wont clear using the scan tool even with the plug disconnected from the damper. It can randomly disappear by itself and return after a couple of days. The damper seems to be working as it should and goes through adaption successfully but codes still won't clear. Possible ecu fault?
DPF is clear and pressure readings are low.

Old car and doesn't owe me anything but has a great spec and in great condition so a bit reluctant to let it go to the crusher.

Any input appreciated.

TIA Jim.