Refer to figure.
Electronic centralized aircraft monitor (ECAM) is a system that monitors aircraft functions and relays them to the pilots. It also produces messages detailing failures and in certain cases, lists procedures to undertake to correct the problem.

When detecting a system failure, the ECAM triggers an aural warning and illuminates the appropriate warning or caution light on the panel, along with the master caution or warning light in front of the pilot. For many malfunctions, an on-screen checklist will be displayed providing the pilots with recommended actions to cope with the associated loss of function.