Unclearable Code

[dwnbyriver]

Would it be possible for a function to be added, that could delete or disable a code from the ECU?
This would be useful where a fault has developed in the wiring loom, but will not harm the engine by doing so.
I have a P0480 code which cannot be cleared, yet the fan runs, and the engine maintains normal temperature.
I have seen adverts for software which can do this.

[s130]

I don't think MES will be able to do this.

MES is not able to reprogram an ECU's executable code/map.

The normal ECU executable code, unless modified will detect and signal all faults found.

It may be that some ECUs have an "ignore" table that could possibly be updated??????

[tzok]

Have you testes all the fan speeds? Fan resistor is often the cause, and without one speed everything seems to work fine.