OEM AR- 3084768 - Caterpillar

Active Event Codes
An active event code represents a problem with engine operation. Correct the problem as soon as possible.Active event codes are listed in ascending numerical order. The code with the lowest number is listed first.When certain event codes are activated, a warning will appear on the display on the control panel. Event code E361 High Engine Coolant Temperature will cause a warning lamp to illuminate on the control panel and a warning horn will sound.Illustration 1 is an example of the operating range of an oil temperature sensor. Do not use the Illustration to troubleshoot the oil temperature sensor.
Illustration 1 g01365757
Example of the typical operating range of a sensor
(1) This area represents the normal operating range of the engine parameter.
(2) In these areas, the engine is operating in an unsafe operating range of the monitored parameter. An event code will be generated for the monitored parameter. The sensor circuit does not have an electronic problem.
(3) In these areas, the signal from the sensor is outside of the operating range of the sensor. The sensor circuit has an electronic problem. A diagnostic code will be generated for the sensor circuit. Refer to Troubleshooting, "Self Diagnostics" for additional information on diagnostic codes. The following format is used for event codes:"EXXX (Y) Description of the event"The "E" means that the code is an event code. The "XXX" represents a numeric identifier for the event code. The "(Y)" represents a numeric identifier for the severity of the event. This is followed by a description of the event. Refer to the following example:"E004 (3) Engine Overspeed Shutdown"In this example, the number 3 indicates the severity of the event. The ECM has three levels of response to events:Level (1) - This level can be referred to as the "Warning Level". This condition represents a serious problem with engine operation. However, this condition does not require a derate or a shutdown.Level (2) - This level can be referred to as the "Derate Level". For this condition, the ECM reduces the engine's power in order to help prevent possible engine damage.Level (3) - This level can be referred to as the "Shutdown Level". On this machine, a "Level 3" event code will be logged in the ECM but the engine will not shut down.Responses to certain events may be programmed into the ECM. Refer to Troubleshooting, "System Configuration Parameters".Logged Event Codes
When the ECM generates an event code the ECM logs the code in permanent memory. The ECM has an internal diagnostic clock. The ECM will record the following information when an event code is generated:
The hour of the first occurrence of the code
The hour of the last occurrence of the code
The number of occurrences of the codeLogged events are listed in chronological order. The most recent event code is listed first.This information can be helpful for troubleshooting intermittent problems. Logged codes can also be used to review the performance of the engine.Clearing Event Codes
A code is cleared from memory when one of the following conditions occur:
The