Question

which of the following best describes the function of kam? a) it is reprogrammed with a scan tool. b) it provides the cpu with a permanent set of instructions. c) it stores temporary information that is erased each time the ignition switch it turned d) it stores dtcs and learned values.

Explanation:

KAM (Keep-Alive Memory) is a type of memory in vehicle ECUs that retains data even when the ignition is off. Option A refers to reprogrammable memory like PROM/EEPROM. Option B describes ROM, which holds permanent instructions. Option C is RAM, which loses data when power is cut. KAM specifically stores diagnostic trouble codes (DTCs) and adaptive learned values for vehicle systems.

Answer:

D) It stores DTCs and learned values.