ENGINE AR 2570547 - Caterpillar

- This refers to any of the harness wiring that is a part of the circuit that connects to the positive battery post.+V - This is a constant voltage that is supplied to a component. The voltage is provided for operation of the component. The voltage is provided by a battery or the voltage is provided by an ECM.Abnormal - This refers to a machine condition that is not normal. The presence of an abnormal condition means that a problem exists. A warning notifies the operator.Caterpillar Electronic Technician (ET) - The Electronic Technician is used in order to diagnose failures in the electronic systems. The tool is designed for a personal computer (PC).Component Identifier (CID) - The CID is a diagnostic code that tells the component or the system that is faulty. The CID is a three digit code. The code is shown on the diagnostic indicator when the system is in the service mode.Clear - This refers to removing diagnostic information from the memory of the ECM. Before you clear information, it is necessary that the information is on hold and that the control module is in service mode.Connector Contact - This is the component of a harness connector that actually makes the electrical connection. Connector contacts are either pins or sockets.Detected Fault - This fault is a fault that has been found by the control module. The fault is recorded. The diagnostic information is available when the control module is in the service mode. Display - Display refers to the indicators or digital readouts within the control display area.Fault - A fault is a failure of a component of the system.Failure Mode Identifier (FMI) - This is a diagnostic code that tells the type of failure that has occurred. The FMI is a two digit code. The code is shown on the diagnostic indicator when the system is in the service mode.Hard Wired - This refers to electrical connections that are made within the harness. These connections are permanent. The connections are soldered or the connections are crimped. The connections are not meant to be altered.Harness Code - This refers to the input condition of the three harness codes. The input condition is from connector contacts 20 through 25. The harness code identifies the machine to the control module.Hold - This refers to locking a set of diagnostic information. The feature is available when the system is in the service mode. You must hold the diagnostic information before you troubleshoot or before you clear information.Jumper - This is a piece of wire that is used in order to bypass components during troubleshooting.Scroll - This is the process of showing all available diagnostic information. The information is shown one set at a time. After all of the sets are shown the sets are repeated.Show - This refers to information that is viewed by the technician. The information is shown on the diagnostic indicator.Signal Wire - This is the harness wire which connects the component to the control