Powertrain Control Module (Pcm): (EEPROM)
Some models may use an EEPROM. This is the same as a PROM except it can be electrically reprogrammed by the manufacturer using special equipment.
NOTE:
Components are grouped into 2 categories. The first category covers INPUT DEVICES, which control or produce voltage signals monitored by the control unit. The second category covers OUTPUT SIGNALS, which are components controlled by the control unit.