303.5E2 CR Mini Hydraulic Excavator Machine ECM Event Codes Caterpillar


Event Codes
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1.1. Warning Levels
2.2. Warning Level 1
3.2. Warning Level 2
4.2. Warning Level 3
5.1. Indications and System Response
6.2. Message
7.2. Cat<SUP>&reg;</SUP> Electronic Technician (Cat<SUP>&reg;</SUP> ET) Service Tool
8.3. Logged Event Codes
9.1. Troubleshooting
10.1. Machine ECM Event Code List

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.

Warning Levels

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

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

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

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

Message

Table 1
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 
ON  Solid Red.  OFF  No immediate action is required. The system needs attention soon.  No harmful, damaging effects result. 
ON  Flash Red.  OFF  Change machine operation or perform maintenance to the system.  The system components are damaged. 
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.



Illustration 1g06049739
Typical Cat® ET Screen display for logged event codes.

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.

Logged Event Codes

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.

Troubleshooting

Perform the following steps to troubleshoot an event:

  1. 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.

  2. 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.

  3. Check all fluid levels and all oil levels.

  4. Troubleshoot and repair any active diagnostic codes.

Machine ECM Event Code List

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.

Table 2
Machine System Event Identifier (EID) Codes 
EID  Level  Description  Possible Cause / Recommended Response 
E0119  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. 
E0237  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. 
E0360  Low Engine Oil Pressure  Immediate Safe Shutdown of machine is required.

Possible Cause: The oil pressure sensor has failed or the machine is low on oil due to a leak or a lack of maintenance.

Recommended Response: After the engine is shutdown, check for any troubleshooting code related to the "Engine Oil Pressure" sensor. If no code is active. Check the oil level for the machine. Fill with oil, if necessary. Inspect the machine for oil leaks. 
E0388  Access Platform not Compatible  Possible Cause: The access platform is not designed to fit the machine.

Recommended Response: Replace the platform the correct part. 
E0875  Low System Voltage  Possible Cause: Event is active when the system voltage is less than 8 VDC for more than 30 seconds.

Recommended Response: The machine returns to normal operation when the voltage exceeds 9 VDC for more than 2 seconds.
See the "Electrical Power Supply - Test" section of this manual for instructions to help correct this issue. 
E0875  Low System Voltage  Possible Cause: Event is active when the system voltage is less than 8 VDC for more than 60 seconds.

Recommended Response: The machine returns to normal operation when the voltage exceeds 9 VDC for more than 2 seconds.
See the "Electrical Power Supply - Test" section of this manual for instructions to help correct this issue. 
E0875  Low System Voltage  Immediate Safe Shutdown of machine is required.
Possible Cause: Event is active when the system voltage is less than 8 VDC for more than 120 seconds.

Recommended Response: The machine returns to normal operation when the voltage exceeds 9 VDC for more than 2 seconds.
See the "Electrical Power Supply - Test" section of this manual for instructions to help correct this issue. 
E0876  High System Voltage  Possible Cause: Event is active when the system voltage exceeds 18 VDC for more than 30 seconds.

Recommended Response: The machine returns to normal operation when the voltage is less than 18 VDC for more than 2 seconds. 
E0876  High System Voltage  Possible Cause: Event is active when the system voltage exceeds 18 VDC for more than 60 seconds.

Recommended Response: The machine returns to normal operation when the voltage is less than 18 VDC for more than 2 seconds. 
E0876  High System Voltage  Immediate Safe Shutdown of machine is required.

Possible Cause: The event is active when the system voltage exceeds 18 VDC for more than 120 seconds.

Recommended Response: Machine diagnostic codes should be reviewed in SIS for occurrences of high voltage or high current faults. 
E1377  Machine Disable Pending Due To Machine Security  Possible Cause: This code is used to inform the operator that the machine is disabled remotely. Contact your AVSpare dealer for assistance.

Recommended Response: Confirm the key being used is the correct key for the machine. 

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