PUMP GP 1198760 - Caterpillar

The "Delayed Engine Shutdown" (DES) feature allows the engine to run after the keyswitch has been turned to the OFF position. "Delayed Engine Shutdown" (DES) allows the engine and exhaust temperatures to cool to an acceptable level prior to shutting the engine down. If the delayed engine shutdown is aborted, potential damage to the engine and/or aftertreatment system can occur. These fault codes may indicate that the engine was shut down while the exhaust temperatures were still above the acceptable threshold.Use this procedure in order to troubleshoot the following event codes.
Table 1
Diagnostic Trouble Codes for Engine Shutdown Occurrence
J1939 Code CDL Code Code Description
(code descriptions may vary) Comments
N/A E265 (1) 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 E268 (1) Unexpected Engine Shutdown The engine was stopped before cooling of the exhaust system could complete. Delayed Engine Shutdown (DES) was not allowed to complete.
6588-31 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 6588-31 or E1466 Code
An operator turning the keyswitch to the fourth position or forcing a shutdown prior to DES completing
DES may not be enabled
Fuel ran out prior to DES completion
Mechanical failure causing the engine to stop prior to DES completionProbable Causes for a E265 Code
Activated shutdown switch
Circuit for the shutdown switchProbable Causes for a E268 Code
Operator caused the engine to stall
Fuel supply
Mechanical Failure
Table 2
Associated Diagnostic Trouble Codes
J1939 Code CDL Code
4215-31 E678 (1)
592-31 E1217 (3) 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 the electronic service tool and the ECM. Refer to Troubleshooting, "Electronic Service Tools", if necessary.
B. Download the "Warranty Report" from the engine ECM before performing any 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" in order to troubleshoot the associated diagnostic code.
Note: Troubleshoot the associated code before continuing with this procedure.
Result: An E265 (1) code is active or logged.
Proceed to Test Step 6.
Result: A 5272-31 or E268 (1) code is active or logged.
Proceed to Test Step 3.
Result: A 6588-31 or E1466 (1) code is active or logged.
Proceed to Test Step 2.
2. Delayed Engine Shutdown
Note: This Test Step is only applicable to applications that do not have a DEF injector cooling tank. Applications that have a DEF injector cooling tank should have Delayed Engine Shutdown disabled. For these applications, proceed to Test Step 3.
A. Check if "Delayed Engine Shutdown" is enabled.
B. Connect to the electronic service tool and then 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