Event codes alert the operator or the technician that an abnormal operating condition exists in one of the machine systems.
When the Machine ECM activates an event code, the operator or the technician will be alerted. Most active events will be logged by the ECM. Some events are not logged to the ECM. The active events and the logged events can be viewed with the Operator Monitor or the Cat® Electronic Technician (Cat® ET) Service Tool.
The ECM will assign one of the three warning levels to an active event code according to the severity of the abnormal system condition. Each warning level requires a specific response from the operator. The warning levels and required operator response are listed below.
Warning level 1 alerts the operator that a machine system requires attention. The operator should check the involved system. Perform any necessary maintenance to the system at the earliest possible time.
Warning level 2 requires changing the operation of the machine or performing a maintenance procedure. Failure to correct the problem behind this warning will damage the components that are involved. The problem that caused the event requires correction, before the machine can resume operation.
Warning level 3 requires an immediate safe shutdown of the machine to avoid damage to the machine or injury to personnel around the machine. The problem that caused the event must be corrected before machine operation can resume.
Indications and System Response
| WARNING OPERATION | |||||
|---|---|---|---|---|---|
| Warning Level | Warning Indications | Action by the operator is required. | Possible Result (1) | ||
| Warning Indicators for the Subsystem | Warning Lamp | Sounding of the Action Alarm | |||
| 1 | ON | Solid Red. | OFF | No immediate action is required. The system needs attention soon. | No harmful, damaging effects result. |
| 2 | ON | Flash Red. | OFF | Change machine operation or perform maintenance to the system. | The system components are damaged. |
| 3 | ON | Flash Red. | Pulse ON and OFF. | Immediately perform a safe engine shutdown. | The operator can be injured or the components are damaged. |
| (1) | (if no action is taken by the operator). |
Cat® Electronic Technician (Cat® ET) Service Tool
When an abnormal operating condition occurs, the status screen on the Operator Monitor or Cat® ET indicates that there is an active event.
Event codes are displayed on Cat® ET or the monitor in the following format:
EXXXX Description of the code
The "E" means that the code is an event code. The "XXXX" is a numeric identifier. The numeric identifier is followed by a description of the code.
Active event codes are listed in ascending numerical order. The code with the lowest number is listed first. The active event code is removed from the list when the condition is no longer present.
Some event codes are logged in the ECM memory. Some event codes are active only. The logged event codes are listed in chronological order. The most recent code is listed first.
A logged code is cleared from memory when one of the following conditions occur:
- The service technician manually clears the code.
- The code does not reoccur for 1000 hours.
- A new code is logged and there are already ten logged codes in memory. In this case, the oldest logged code is cleared.
Note: Always clear logged event codes after investigating and correcting the problem which generated the code.
Perform the following steps to troubleshoot an event:
- Obtain the following information from the operator monitor and the machine operator:
- The observed condition and the time when the condition occurred.
- Determine the operating conditions for the engine at the time of the event. Conditions such as engine RPM and load may be important.
- Determine if there are any systems that were installed by the dealer or by the customer that could cause the event.
- Some of the events below can become active during normal system operation. Verify that the event is not due to an error by the operator.
- Check all fluid levels and all oil levels.
- Troubleshoot and repair any active diagnostic codes.
The following table lists the event codes that apply to the control system of the machine. The recommended response is listed. Use the Cat® ET service tool to determine the event codes that are active or logged.
| Machine System Event Identifier (EID) Codes | |||
|---|---|---|---|
| EID | Level | Description | Possible Cause / Recommended Response |
| 119 | 2 | Low Fuel Level Warning is active for more than 2 seconds. | Possible Cause: Low fuel level in the tank, fuel line leakage, or the fuel filter is plugged. Recommended Response: Check the fuel level in the tank. If the tank contains fuel, perform a diagnostic check on the "Fuel Filter Plugged" switch (or switches). If fuel usage is excessive, inspect the machine for fuel leakage and repair as needed. Check for any diagnostic code related to the fuel level sensor as well. |
| 179 | 2 | Alternator Not Charging | Possible Cause:With an engine speed of greater than 600 RPM, the alternator gauge on the control panel is reading zero for more than 60 seconds. Recommended Response: Use Cat® Electronic Technician (Cat® ET) Service Tool to check for diagnostic codes related to the electrical generating system. Check for diagnostic codes related to a failure of the Machine CAN Data Link. |
| 232 | 2 | High Fuel / Water Separator Level Warning | Possible Cause: Event code occurs when the status of the Fuel/Water separator is full for more than 40 seconds. Recommended Response: Drain the "Fuel/Water Separator" as soon as possible to bring separator level to normal. |
| 235 | 2 | Low Hydraulic Oil Level | Possible Causes:This event is active when the engine speed is less than 300 RPM and the "Hydraulic Oil Level" status is "Low" for more than 2 seconds. Recommended Response: Check the hydraulic oil level on the liquid indicator gauge on the side of the tank. Fill if the tank is low. If the gauge shows that the tank is full, check the hydraulic lines for damage. |
| 236 | 2 | Return Hydraulic Oil Filter Plugged | Possible Cause: This event is active only when the machine is traveling and the oil temperature is greater than Recommended Response: Replace the filter as soon as possible. If filter replacement is not convenient, stop machine travel until oil temperature is less than If a code is present after the filter is replaced, inspect the hydraulic lines for signs of severe bending or internal collapse. |
| 237 | 2 | Machine Overload Warning (Sensor Error) | Possible Cause: The Boom cylinder Head Pressure has experienced a failure. Use Cat® ET to view active code CID 1969 to confirm failure. Recommended Response: Follow recommended service process to correct failure. |
| 237 | 3 | Machine Overload Warning | Immediate Safe Shut Down of Machine is Required.
Possible Cause: The machine overload pressure threshold has been exceeded. Recommended Response: Reduce the load on the machine before shutting down machine. Inspect the stress points on the front linkage. |
| 273 | 1 | Security System Active Warning | Possible Cause: This code is active when an unauthorized key is used to try to start the engine. There is a 5 second debounce time before this code is active. Recommended Response: Check to see if the proper key has been used to start the machine. |
| 617 | 1 | Engine Start Restriction Active | Possible Cause: Event code is active when the engine start restriction is active for more than 5 seconds. Recommended Response: Turn the key to the OFF position. |
| 862 | 2 | Attachment Hydraulic Oil Filter Plugged Warning | Possible Cause: Occurs when hydraulic oil temperature exceeds Recommended Response: Replace filter as soon as possible. If code is present after the filter is replaced, inspect the hydraulic lines for damage. |
| 875 | 2 | Low System Voltage | Possible Cause: Event is active when the system voltage is less than 18 VDC for more than 60 seconds. Recommended Response: The machine returns to normal operation when the voltage exceeds 18 VDC for more than 2 seconds. |
| 876 | 2 | High System Voltage | Possible Cause: Event is active when the system voltage exceeds 32 VDC for more than 60 seconds. Recommended Response: The machine returns to normal operation when the voltage is less than 32 VDC for more than 2 seconds. |
| 1046 | 2 | High Work Tool Hydraulic Oil Temperature Warning | Possible Cause: The event is active when the temperature of the hydraulic oil exceeds Recommended Response: Change the operation of the machine to allow the hydraulic oil to cool. |
| 1132 | 2 | Inconsistent Configuration Detected | Possible Cause: An attachment valve has not been configured correctly Recommended Response: Reconfiguration of one or more of the attachment valves is required. |
| 1320 | 1 | Clock Manual Alignment | Recommended Response: Use Cat® ET to realign the Real-Time Clock on the machine. |