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 is 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 event and the time of the event
- 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 error of 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 | Recommended Response/Possible Cause |
| 119 | 2 | Low Fuel Level Warning is active for more than 2 seconds. | Check fuel level in the tank.
Perform a diagnostic check on the "Fuel Filter Plugged" switch and the "No. 2 Fuel Filter Plugged" switch. |
| 179 | 2 | Alternator Not Charging | With an engine speed of greater than 600 RPM, the alternator gauge on the control panel is reading zero.
Use Cat® Electronic Technician (Cat ET) Service Tool to check for diagnostic codes related to the electrical generating system. |
| 232 | 2 | High Fuel / Water Separator Level Warning is active for more than 40 seconds. | Change "water separator" filter as soon as possible. |
| 235 | 2 | Low Hydraulic Oil Level | This event is active after the conditions which trigger the event have been active for more than 2 seconds.
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 | This event is active only when the machine is traveling and the oil temperature is greater than Replace the filter as soon as possible. If a code is present after the filter is replaced, inspect the hydraulic lines for signs of damage. |
| 237 | 2 | Machine Overload Warning (Sensor Error) | Immediately change operation of machine - reduce amount of load. |
| 237 | 3 | Machine Overload Warning | Immediate Safe Shut Down of Machine Required.
The machine overload pressure threshold has been exceeded, reduce the load on the machine. |
| 273 | 1 | Security System Active Warning | This code is active when an unauthorized key is used to try to start the engine. There is a 5 second debounce time for this code.
Check to see if the proper key has been used to start the machine. |
| 529 | 2 | High Engine Coolant Temperature Derate | This event is active when the engine coolant temperature is The event is inactive when the coolant temperature is less than |
| 617 | 1 | Engine Start Restriction Active | Event code is active when the engine start restriction is active for more than 5 seconds. |
| 862 | 2 | Attachment Hydraulic Oil Filter Plugged Warning | Event is active when the hydraulic oil temperature is greater than 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 | Event is active when the system voltage is less than 18 VDC for more than 60 seconds.
The machine returns to normal operation when the voltage exceeds 18 VDC for more than 2 seconds. |
| 876 | 2 | High System Voltage | Event is active when the system voltage exceeds 32 VDC for more than 60 seconds.
The machine returns to normal operation when the voltage is less than 32 VDC for more than 2 seconds. |
| 878 | 2 | High Hydraulic Oil Temperature Derate | The event is active when the temperature of the hydraulic oil exceeds Change the operation of the machine to allow the hydraulic oil to cool. When the temperature of the hydraulic oil is less than |
| 878 | 3 | High Hydraulic Oil Temperature Derate | The event is active when the temperature of the hydraulic oil exceeds Change the operation of the machine to allow the hydraulic oil to cool. When the temperature of the hydraulic oil is less than |
| 1046 | 2 | Hydraulic Oil Temperature is higher than the limit that is recommended for the attached tool. | Change the operation of the machine to allow the hydraulic oil to cool.
When the temperature of the hydraulic oil is less than |
| 1132 | 2 | Inconsistent Configuration Detected | Reconfiguration of one or all the attachment valves is required. |
| 1320 | 1 | Clock Manual Alignment | Use Cat ET to realign the Real-Time Clock on the machine. |
| E1535 | 1 | High Main Hydraulic Pump #1 Pressure During Automatic Warm Up | Possible Cause:Active when the pump #1 pressure high status is above 30 MPa (4351.14 psi) for 10 seconds or more during auto warm-up. If the warm-up valve on the ACS valve does not open properly, this event will occur. Recommended Response: Warm up the machine manually or replace the warm-up valve. This event does not affect machine performance. Refer to Troubleshooting, "Hydraulic System Warm Up - Functional Test" Reference: Troubleshooting, "Bypass Valve (ACS Valve) - Functional Test" |
| E1547 | 1 | High Main Hydraulic Pump #2 Pressure During Automatic Warm Up | Possible Cause: Active when the pump #2 pressure high status is above 30 MPa (4351.14 psi) for 10 seconds or more during auto warm-up. If the warm-up valve on the ACS valve does not open properly, this event will occur. Recommended Response: Warm up the machine manually or replace the warm-up valve. This event does not affect machine performance. Refer to Troubleshooting, "Hydraulic System Warm Up - Functional Test" Reference: Troubleshooting, "Bypass Valve (ACS Valve) - Functional Test" |