BLOCK-LATCH 4500621 - Caterpillar

Electronic Control System
The electronic system consists of an Electronic Control Module (ECM), the wiring harness, switches, sensors, and fuel injectors. The ECM consists of two main components, the control computer (hardware) and the flash file (software). The control computer consists of a microprocessor and electronic circuitry. The flash file contains the engine's operational characteristics. The operating maps define the following characteristics of the engine:
Horsepower
Torque curves
Engine speed (rpm)Refer to Troubleshooting, "System Overview" for additional information on the electronic control system.Interface
The ECM interfaces with the engine via software and electrical connectors on the ECM. The engine provides inputs to the electrical connector on the ECM in order to indicate the status of switches and sensors. The ECM must be correctly configured in order to interpret the inputs. The ECM provides outputs for the engine systems via the electrical connectors on the ECM in order to control lamps, solenoids, and other devices. Refer to Troubleshooting, "Configuration Parameters".