Cannot comment on all EEC, DEEC or FADEC controlled engines, but several I have had occasion to learn about use ITT or EGT inputs to perform a T5 limiting function. Loss of this input will not disable the engine control, but will generate an advisory message and/or log the occurance in memory in the digital units. This function does not remove responsibility for engine monitoring from the pilot, but will limit T5 exceedences by reducing fuel scheduling to an overtemping engine.
Best,
Westhawk