Subfunction 0x42 and 0x55 for ReadDTCInformation should accept 0xFF for functional group

[Krash-2504]

The service ReadDTCInformation should accept 0xFF for the input for subfunction 0x42 and 0x55. Getting the error below currently.

EXCEPTION of type 'ValueError' occurred with message: Functional Group ID must be an integer between 0x0 and 0xFE

[pylessard]

I am confused.
ISO-14229 defines this.

But the values are defined by ISO-27145-3

[pylessard]

Do you have an opinion? what's FF in your case?

[pylessard]

because of the ambiguity, I will enable 0xFF

[pylessard]

Implemented in fix-wwhobd-dtc. Want to try?

[Krash-2504]

Do you have an opinion? what's FF in your case?

According to the 2013 standard 0xFF denotes all the functional groups the same way 0xFF is for read snapshots

[pylessard]

Oh wow, you're right. 2013 and 2020 sepcify different value ranges.