A selected value to display shows 0 or - - -, how come?
The CFE ECU contacts other ECU's in your Volvo (for example the Motor management ECU) for information about certain values.
Those values are unfortunately not at the same place in such ECU or differ totally in structure.
Obviously we try to get and store as much Volvo data as we can, but still the CFE will miss out some right information here and there.
Just inform us with a bug-report in such case so we can chase the information and release a Firmware version with the right data included.