If you have time it is ALWAYS worth reading the FCOM ABN for any ECAM as the FCOM often has important pertinent info that is not on ECAM.
For example if you have an ELEC DC ESS BUS FAULT only the FCOM Will warn you that you can only shut the engines down using the fire p/bs. If you just did the ECAM you’d get a rude awakening on stand.