CORE AS-AFTERCOOLER 2112022 - Caterpillar

Illustration 1 g01138880
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, "Diagnostic Code List" for additional information on diagnostic codes.Events are represented in two formats. In the first format, the "E" means that the code is an event code. The "XXX" represents a numeric identifier for the event code. The identifier is followed by a description of the code. If a warning, derate, or a shutdown is applicable, the numeric identifiers are different. Refer to the following example:
E004 Engine Overspeed ShutdownIn 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, derate, or a shutdown. The identifier is followed by a description of the code. Refer to the following example:
E360-1 Low Oil Pressure Warning
E360-2 Low Oil Pressure Derate
E360-3 Low Oil Pressure ShutdownThe definition for a warning, derate, and a shutdown are defined below:Warning - This condition represents a serious problem with engine operation. However, this condition does not require derate or a shutdown.Derate - For this condition, the engines Electronic Control Module (ECM) reduces the engines power to help prevent possible engine damage.Shutdown - For this condition, the ECM shuts down the engine to help prevent possible engine damage.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 code does not recur for 100 hours.
A new code is logged and there are already ten codes in memory. In this case, the oldest code is cleared.
The service technician manually clears the code.Always clear logged event codes after investigating and correcting the problem which generated the code.Troubleshooting
For basic troubleshooting of the engine, perform the following steps to diagnose a malfunction:
Obtain the following information about the complaint:
The event and the time of the event
Determine the conditions for the event. The conditions will include the engine rpm and the load.
Determine if