BRACKET AS 2320768 - Caterpillar

Active Diagnostic Codes
Diagnostic codes are used by the 3176 System to warn the vehicle operator of a problem and indicate to the service technician the nature of the problem. Some codes are used only to record an event and do not indicate problems that need repair.An ACTIVE diagnostic code represents a problem that should be investigated and corrected AS SOON AS POSSIBLE. Repairing the cause of an ACTIVE code will cause the code to be cleared.When an ACTIVE code is generated, the diagnostic lamp will turn ON and remain ON, blinking every five seconds. If the condition generating the fault occurs only for a brief moment, the lamp will go OFF after five seconds and the code will be LOGGED.ACTIVE codes may be viewed using either of the electronic service tools (ECAP or DDT), or may be viewed by using the cruise control switches.To troubleshoot an ACTIVE code, refer to the procedure in this section under the specific code number.Using The ECAP Or DDT To Display Active Codes:
A. With key OFF, install an ECAP or DDT into the 3176 System.B. Turn key ON (engine does not need to be started to view codes).C. Refer to the Operating Manual and Special Instructions for the service tool being used (listed under 3176 Service Tools) to read the diagnostic code(s). On the ECAP, the display menu will direct you to the correct screen to display diagnostic messages.Using The Cruise Control Switches To Display Active Codes:
A. Turn key ON (engine does not need to be started to view codes).B. The Diagnostic Lamp will turn ON for five seconds, blink OFF, turn ON again for five seconds, then OFF for five seconds. At the end of that time, the lamp will begin to flash the first number of the two-digit code (count the flashes). After two seconds OFF, it will begin to flash the second digit. If two or more codes are present, they will follow the first after a few seconds and be displayed in the same manner.C. Active Diagnostic codes may be displayed at any time by using the Cruise Control Switches. With key ON or engine running, turn the cruise control ON/OFF switch to OFF and move the SET/RESUME switch to the RESUME position. Once the code(s) begin to flash, the switch may be released.The Diagnostic Lamp will flash out all codes that are currently ACTIVE or that have been ACTIVE since the key was turned ON.Logged Diagnostic Codes
When the ECM generates a diagnostic code, it usually logs the code in permanent memory within the ECM. The ECM has an internal diagnostic clock and will record the hour of the first occurrence, the hour of the last occurrence and the number of occurrences of the code. Knowing when and how often the code was generated can be a valuable indicator when troubleshooting intermittent problems. Logged codes can be retrieved or erased using an ECAP or DDT Electronic Service Tool.When investigating LOGGED Diagnostic Codes, keep in mind:* Some codes can be