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| Illustration 1 | g01201454 |
Active event display area | |
When one of the control modules on the machine activates an Event for machine conditions that are not within normal operating parameters, this information will be communicated to the Monitor on the J1939 Data Link system. The Monitor will display the active Events. The Monitor will determine what the warning response will be depending on the severity of the problem. The event warnings are classified into three warning levels. The warning level determines what response is required by the operator or the technician. Warning Level 1 represents the least severe problem and warning Level 3 represents the most severe problem. The warning Levels, Monitor display message and the operator action required are listed below.
Warning Level 1 - Yellow Graphic Display - requires operator awareness.
Warning Level 2 - Red Graphic Display and Alert Indicator - requires a change in the operation of the machine or a change in the maintenance of the machine in order to correct the condition.
Warning Level 3 - Red Graphic Display, Alert Indicator and Monitor Internal Audible Alarm - requires immediate shutdown of the machine in order to prevent damage to the machine or danger to personnel.
When multiple warnings are present in the system, the highest level warning (level 3) is shown first. Press the up key or press the down key in order to view all of the warnings that are active. All event code warnings and EID's that can be displayed by the Monitor are listed in the table below. Events with a warning level higher than Level 1 will be logged when activated.
Note: All of the event codes that are listed may not be applicable to all machine models.
Machine Control System Event Codes
Some of the Monitor events can be activated at more than one warning level depending on the severity of the condition. In the following table, these events will be listed separately for each warning level.
| Monitor Event Identifier (EID) Codes For The Machine Control System | |||
|---|---|---|---|
| EID | Level | Displayed Message | Possible Cause/Recommended Response |
| No EID | 3 | "CAN DATA LINK ERROR" | Immediate safe machine shutdown required. Refer to the "Monitor Communication Errors" section below. |
| No EID | 2 | "MACHINE CONTROLLER COMMUNICATION" | Refer to the "Monitor Communication Errors" section below. |
| No EID | 2 | "ENGINE CONTROLLER COMMUNICATION" | Refer to the "Monitor Communication Errors" section below. |
| No EID | 2 | "SOFT-SWITCH-PANEL COMMUNICATION" | Refer to the "Monitor Communication Errors" section below. |
| 0043 | 2 | "LOW SYSTEM VOLTAGE" | System voltage is less than 18 VDC. Check battery operation. Check the battery cables and clamps. Refer to "Charging System - Test" to check the charging system. |
| 0046 | 1 | "LOW TRANSMISSION OIL PRESSURE" | Engine speed is greater than 400 rpm, park brake is off and the transmission oil pressure is less than 2900 kPa (420.6 psi) (2.45 VDC on the Transmission Oil Pressure Sensor circuit.) Check oil level. Verify that the transmission oil pressure is low. Refer to Testing and Adjusting, RENR9465. |
| 0046 | 3 | "LOW TRANSMISSION OIL PRESSURE" | Immediate safe machine shutdown required. Transmission oil pressure is less than 2716 kPa (393.9 psi)(2.30 VDC on the Transmission Oil Pressure Sensor circuit) when the engine speed is greater than 400 rpm and park brake is disengaged. Check oil level. Verify that the transmission oil pressure is low. Refer to Testing and Adjusting, RENR9465. |
| 0050 | 2 | "HIGH SYSTEM VOLTAGE" | System is greater than 36 VDC. Refer to Testing and Adjusting"Charging System - Test" to check the charging system. |
| 0083 | 2 | "TRANSMISSION OVERSPEED" | Ground speed is equal to the configured maximum plus 7 km/h (4.3 mph). Reduce speed or increase the configured maximum speed setting. If event persists, cycle the key switch OFF to ON to clear error Contact dealer if the problem remains present. |
| 0113 | 1 | "HIGH TRANSMISSION OIL PRESSURE" | Oil pressure is greater than 3600 kPa (522.1 psi) (2.95 VDC on the Transmission Oil Pressure Sensor circuit) when the engine speed is greater than 400 rpm and park brake is disengaged. Check the oil level. Verify that the transmission oil pressure is high. Refer to Testing and Adjusting, RENR9465. |
| 0119 | 1 | "LOW FUEL LEVEL" | Less than 5 percent of fuel is in the fuel tank. Add fuel. |
| 0179 | 2 | "ALTERNATOR IS NOT CHARGING" | Engine speed is greater than 600 rpm and alternator speed is less than 500 rpm. Check the alternator drive belt. Ensure belt tension is correct. Refer to Testing and Adjusting"Charging System - Test". |
| 0236 | 2 | "RETURN HYDRAULIC FILTER PLUGGED" | Hydraulic oil clog pressure switch is open. Change hydraulic oil filter. |
| 0237 | 3 | "MACHINE OVERLOAD" | Immediate safe machine shutdown required. Overload pressure switch contacts are open. Decrease the load on the machine. |
| 0260 | 1 | "HIGH BOOM POSITION" | Boom angle limit switch contacts are closed indicating the boom angle is too great for travel. Place boom in the travel position. |
| 0262 | 2 | "LOW QUICK COUPLER PRESSURE" | Activated when the quick coupler pressure switch contacts open (low pressure) when the quick coupler is LOCKED. Move the implement in order to reset to correct pressure. |
| 0262 | 3 | "LOW QUICK COUPLER PRESSURE" | Activated when the quick coupler is LOCKED and the coupler pressure switch pressure switch contacts open (low pressure) within 60 seconds of the last low pressure event. Cycle through the quick coupler commands to check for proper operation. Inspect work tool for tightness. Check for correct system hydraulic pressure. |
| 0273 | 2 | "INVALID KEY" | Incorrect MSS key is being used or loss of communication with MSS. Use the correct key or check the key parameters. Troubleshoot data link system and MSS. |
| 0284 | 3 | "LOW BRAKE OIL ACCUMULATOR PRESSURE" | Immediate safe machine shutdown required. Brake system pressure is less than 100 bar (1450.0 psi). Allow time for brake system pressure to increase. Pump the pedal several times. Check brake charging system. |
| 0353 | 2 | "MACHINE CONFIGURATION CHANGED" | The following conditions can cause this event to activate: Product model is not programed. Incorrect Implement Control 2 ECM has been installed or no Implement Control 2 ECM is detected. Loss of power to a control module. Machine model does not match the engine model. Machine Control ECM is set to fast travel while the Engine ECM is not. The following active diagnostic codes can cause this event to activate: CID's: 0268-02, 0590-14, 1326-2, 1558-9, 1558-14. Perform the troubleshooting procedure for the active diagnostic code. |
| 0391 | 2 | "INLET AIR RESTRICTION" (Air Filter Plugged) | Air filter switch contacts are closed. Air filter is plugged. Operating mode is set to "Economy". Change the air filter. |
| 0561 | 2 | "LOW HYDRAULIC OIL TEMPERATURE" | Activated when the hydraulic oil temperature is BELOW 14 °C (57.2 °F) when the engine speed is greater than 400 rpm. Operating mode will be set to "Economy". Allow time for the hydraulic oil temperature to increase. Perform troubleshooting procedures for CID 0600 (Hydraulic Oil Temp Sensor) |
| 0861 | 0 | "CLOCK MANUAL ALIGNMENT (SYNCHRONIZATION) REQUIRED" (Displayed only in Cat ET, not on the Monitor) | System clocks differ by more than +/- 50 hours. Perform the manual clock alignment procedure in Cat ET. |
| 0878 | 1 | "HIGH HYDRAULIC OIL TEMPERATURE" | Oil temperature is greater than 93 °C (199.4°F) when the engine speed is greater than 400 rpm. Run engine at full speed and reduce the hydraulic load. |
| 0878 | 2 | "HIGH HYDRAULIC OIL TEMPERATURE" | Oil temperature is greater than 96 °C (204.8 °F) when the engine speed is greater than 400 rpm. Operating mode is set to "Economy". Check the operation of the cooling fan. Check the hydraulic filter and the hydraulic system for restrictions. |
| 1044 | 2 | "HIGH INTAKE MANIFOLD AIR TEMPERATURE" | Refer to the Engine ECM module in the Service Manual. |
| 1045 | 2 | "LOW INTAKE MANIFOLD AIR TEMPERATURE" | Refer to the Engine ECM module in the Service Manual. |
| 2140 | 2 | "POWER TRAIN FAILURE" | The following active diagnostic codes will cause this event to activate: CID's: 0127, 0191, 1401, 1402, 2104, 2142, 2149. Perform the troubleshooting procedure for the active diagnostic code. |
Monitor Communication Errors
The Monitor will activate a communication event when there is a problem communicating with another control on the machine. The type of event and the behavior of the other control modules on the machine can help to indicate what type of problem is present.
Can Data Link Error
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| Illustration 2 | g01338743 |
The Can Data Link Error event is activated when communication on the J1939 Data Link circuit has been interrupted.
If the data link error message displays for a short period and then is erased, the Monitor will automatically restart itself. When this occurs, an intermittent problem could be present in the data link circuit. If this occurs more than once in a short period of time, the J1939 Data Link circuit should be investigated for poor connections or intermittent open circuits. If the Monitor is activating the data link error event when no other control modules on the machine are activating diagnostic codes for the data link system, an open or a bad connection in the section of the data link circuit that is connected to the Monitor would be suspected.
If an intermittent short circuit is present in the data link circuit, communication to the other control modules will also be interrupted. This would most likely cause multiple data link diagnostic codes to be activated. Short circuits can be caused by wet connections, dirty connections or worn or broken wire insulation.
If the data link error message is displayed continuously, the data link communication has not been restored and the Monitor will not restart. An open circuit or poor connections could be present in the data link circuit. Investigate whether any other control modules are experiencing similar problems in order to isolate the cause of the problem.
Always refer to the complete machine Electrical system Schematic for your machine in order to locate and troubleshoot the data link circuits and connectors.
If the Monitor is continuously restarting when no other control modules on the machine are experiencing problems, the Monitor could be faulty. If this occurs, turn the key start switch to the OFF position. Wait a few seconds. Turn the key start switch to the ON position. If the Monitor continues to shutdown and restart, contact the dealership's Technical Communicator in order to consult with the Caterpillar Dealer Solutions Network.
Controller Errors
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| Illustration 3 | g01338807 |
The Monitor will activate an error event for another specific control module that is not sending the expected data to the Monitor. This can be caused by problems in the J1939 Data Link circuit. Communication error events can also be caused by control module software issues. It is possible that a faulty control module could cause these types of error events, however, the control module should only be suspected as the cause of the problem after all of the other possible causes have been eliminated.
The conditions that are present when a specific event for a particular control is activated can indicate what could be causing the problem.
When the Monitor activates the error event for the Machine Control ECM, the behavior of the Soft Switch Panel (SSP) and the other control modules can indicate what type of problem is present.
If the SSP LED indicator lights are flashing ON and OFF, this indicates that the SSP is not receiving communication from the Machine Control ECM. This would indicate that there could be a problem with either the data link circuit or possibly a problem with the Machine Control ECM. If other machine controls are activating data link diagnostic codes for the Machine Control ECM, the data link circuit connections at or near the Machine Control ECM should be checked for open circuits or poor connections.
If a short circuit is present in the data link circuit, communication to the other control modules would also be interrupted. The SSP LED indicator lights would be flashing ON and OFF. A short would most likely cause multiple data link diagnostic codes to be activated by other control modules. Short circuits can be caused by wet connections, dirty connections or worn or broken wire insulation.
If the SSP LED indicator lights are not flashing ON and OFF when the error event is activated, this indicates that the SSP is receiving communication from the Machine Control ECM. This would indicate that there could be an open circuit or a poor connection in the data link circuit at or near the Monitor. This condition would most likely cause the Monitor to activate all three of the controller error events and the CAN Data Link Error event at the same time.
When the Monitor activates the error event for the Engine Control ECM, the Monitor is not receiving the expected data from the Engine ECM. The SSP will not react to this problem because it receives no data from the Engine ECM. The same troubleshooting logic that is used above for the Machine Control ECM would apply to the Engine ECM event with the exception of the SSP behavior.
When the Monitor activates the error event for the SSP, the behavior of the SSP can indicate what type of problem is present. If the SSP LED indicator lights are flashing ON and OFF, this indicates that the SSP is working properly. When this occurs, look for open circuits or poor connections in the data link circuits between the SSP and the Monitor.
If the SSP LED indicator lights are not flashing ON and OFF when the SSP error event is activated by the Monitor, the SSP could be causing the problem.
Always refer to the complete machine Electrical system Schematic for your machine in order to locate and troubleshoot the data link circuits and connectors.
When the Monitor activates one or more of the controller error events and the cause can not be found, turn the key start switch to the OFF position. Wait 10 seconds or until the Monitor screen is black. Turn the key start switch to the ON position.
If the key ON/OFF/ON cycle corrects the problem but the Monitor activates the same event within a short period of time or if the key cycle does not clear the problem, verify that all of the other possible causes that are mentioned above have been investigated.
If a cause can not be found, flash the suspect ECM with the latest version of software. Contact the dealership's Technical Communicator in order to ensure that you have the latest version of software for the specific machine and for the specific ECM.
If after flashing the latest software to the suspect ECM, the Monitor continues to activate the event and a problem with a control module is suspected, contact the dealership's Technical Communicator in order to consult with the Caterpillar Dealer Solutions Network.