2 OPDES: "If no relight after 30 s .... "
The line only appears, when after 30s the ENG FAIL condition is still there. Once you see this ECAM blue line, the 30 had already passed (otherwise it is not displayed). Then:
One shall look at the engine if perhaps relight is actually in progress...
. if it is > just stand by and wait/hope for the engine to come alive
. if it is not > proceed as indicated.
In a proper SIM, just observe when "If no relight" line is introduced on the screen. Approx 31 s after the ENG 1(2) FAIL had been indicated.