RENR5042-02 75 Troubleshooting Section Troubleshooting with an Event Code i02290980 Event Codes SMCS Code: 1901 Event codes alert the operator that an abnormal engine operating condition such as low oil pressure or high coolant temperature has been detected. When the event code is generated, the event is active. 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. Illustration 11 is an example of the operating range of a temperature sensor. Do not use the Illustration to troubleshoot temperature sensors.
g01138880 Illustration 11 Example of the typical operating range of a temperature sensor (1) This area represents the normal operating range of the parameter. The normal output voltage of the sensor is between 0.2 VDC and 4.2 VDC. (2) In this area, the temperature above 107 °C (225 °F) is higher than normal. The output voltage of the sensor will generate an event code. The sensor does not have an electronic problem. (3) In these areas, the output voltage of the sensor is too high or too low. The voltage is outside of the normal range. The electronic problem will generate a diagnostic code.
Refer to Troubleshooting, “Troubleshooting with a Diagnostic Code” for additional information on diagnostic codes. Events are represented in two formats. In the first format, the means that the code is an event code. The “XXX” represents a numeric identifier for the event code. This is followed by a description of the code. If a warning, a derate, or a shutdown is applicable, the numeric identifiers are different. Refer to the following example: E004 Engine Overspeed Shutdown In the second format, the “E” means that the code is an event code. The “XXX-X” represents a numeric identifier for the event code. The fourth “X” identifies the event as a warning, a derate, or a shutdown.
This is followed by a description of the code. Refer to the following example: