When memory in a vehicle ECM is described as being volatile, what happens to it when the ignition is turned off?
A) it is written to EEPROM
B) it is retained magnetically
C) it is activated until the next start cycle
D) it is lost

Question

Quizplus · Accepted Answer

Volatile memory in a vehicle's ECM (Engine Control Module) loses its stored information when the power (ignition) is turned off. This is a characteristic of volatile memory, which requires power to maintain the stored information.

When Memory in a Vehicle ECM Is Described as Being