40119 6 Mercury NUT, (M6)

Table 1
Diagnostic Trouble Codes
J1939 Codes CDL Code Comments
N/A E265 (1)
User-Defined Shutdown The inputs from the user-defined shutdown switch to the Electronic Control Module (ECM) have changed states. The engine will shut down. The code is logged.
N/A E265 (2)
User-Defined Shutdown The inputs from the user-defined shutdown switch to the Electronic Control Module (ECM) have changed states. The engine will shut down. The code is logged.
N/A E265 (3)
User Defined Shut down The inputs from the user-defined shutdown switch to the Electronic Control Module (ECM) have changed states. The engine will shut down. The code is logged.
5272–31
Unexpected Engine Shutdown E268 (3)
Unexpected Engine Shutdown The engine has stopped unexpectedly. The engine speed is 0 while the ECM is requesting engine speed.
E369 (3)
Engine Stall Condition
6588-31
Operator Shutdown With High Exhaust Temperature E1466(1)
Operator Shutdown With High Exhaust Temperature The Engine was stopped before cooling of the exhaust system could complete. Allow Delayed Engine Shutdown to complete. Probable Causes for a E1466 or 6588-31 Code
DES may not be enabled
Improper operation of engine
Machine is not in safe state for DES
Parking break is not engaged
Transmission is not in neutral
Any occurrence that results in engine shutdown prior to DES completion
Depletion of fuel resulting in engine shutdown
Operator forced engine shutdown
Mechanical failureProbable Causes for a E265 Code
Activated shutdown switch
Circuit for the shutdown switchProbable Causes for a E268, E369, or 5272-31 Code
Operator caused the engine to stall
Fuel supply
Mechanical Failure
Table 2
Associated Diagnostic Trouble Codes
E678
4215-31
E1217 Complete the procedure in the order in which the steps are listed.
Table 3
Troubleshooting Test Steps Values Results
1. Determine the Code
A. Establish communication between Caterpillar Electronic Technician (ET) and the ECM. Refer to Troubleshooting, "Electronic Service Tools", if necessary.
B. Download the "Warranty Report" from the engine ECM before troubleshooting or clearing diagnostic trouble codes.
C. Determine the event code.
Active Codes
Result: An associated code is active.
Repair: Refer to Troubleshooting, "Event Codes" to troubleshoot the associated diagnostic code.
Troubleshoot the associated code before continuing with this procedure.
Result: A E265 code is active or logged.
Proceed to Test Step 6.
Result: A E268 (3), E369 (3), or 5272-31 code is active or logged.
Proceed to Test Step 3.
Result: A E1466 or 6588-31 code is active or logged.
Proceed to Test Step 2.
2. Delayed Engine Shutdown
A. Check if "Delayed Engine Shutdown" is enabled.
B. Connect to Cat® ET, navigate to the "Configuration" tab in the engine ECM. Select the "Delayed Engine Shutdown" tab and check the status of the parameter.
Delayed Engine Shutdown
Result: "Delayed Engine Shutdown" is enabled.
Proceed to Test Step 3.
Result: "Delayed Engine Shutdown" is not enabled.
Repair: Enable "Delayed Engine Shutdown".
Verify that enabling "Delayed Engine Shutdown" eliminated the problem.
3. Proper Engine Operation
A. Interview the operator and determine the events that caused the engine to stall. Refer to Operation and Maintenance Manual(OMM) for proper engine operation.
B. Delayed engine shutdown (DES) may not have completed.
Operator
Result: The operator is operating the engine correctly.
Proceed to Test Step 4.
Result: The operator is not operating the engine correctly.
Repair: Operate the engine correctly.
4. Fuel
A. Check the engine fuel supply.
Fuel
Result: The engine is out of fuel.
Repair: Supply the engine with an adequate fuel supply.
Verify that the repair eliminated the problem.
Result: The engine is not out of fuel.
Proceed to Test Step 5.
5. Mechanical Failure
A. Check for a mechanical failure.
Mechanical Failure
Result: A mechanical failure has occurred.
Repair: Diagnose the problem and then repair the problem.
Verify that the repair eliminated the problem.
6. Activated Shutdown Switch
A. Interview the operator and determine the reason for the emergency stop shutdown.
Switch
Result: The emergency stop shutdown was activated.
Repair: Diagnose the problem and then repair the problem.
Verify that the repair eliminated the problem.
Result: The emergency shutdown was not activated.
Proceed to Test Step 7.
7. Check the Emergency Shutdown Switch Circuit
A. Inspect the stop switches for evidence of damage that has been caused by vibration, moisture, or corrosion.
B. Check the circuit for the shutdown switch. Refer to Troubleshooting, "Shutdown (Ground Level) - Test".
Emergency Shutdown Switch Circuit
Result: The emergency stop shutdown switch is not operating properly or there is a problem with the emergency shutdown circuit.
Repair: Repair or replace the failed component.
Verify that the repair eliminated the problem.