JOINT ASSEM 7D1933 - Caterpillar

Use this procedure if one of the following event codes is active. Refer to Troubleshooting, "Event Codes" for information about event codes.Note: Some of the following codes may not be applicable for certain applications.
Table 1
Diagnostic Trouble Codes    
J1939 Code    CDL Code    Description    Comments    
593-31     E1171 (1)     Engine Idle Shutdown Occurred     The engine has been idling for an extended amount of time.
This notification is for the operator. This notification is not a suspected engine problem.
The code is logged.    
594-31     E1172 (2)     Engine Idle Shutdown Driver Alert Mode     The engine is preparing to shut down because of an extended non-working idle time.
The code is logged.    
594-31     E1172 (3)     Engine Idle Shutdown Driver Alert Mode     The engine is shutting down.
An alarm is activated.
The code is logged.    Probable Causes
Extended idle timeRecommended Actions
Complete the procedure in the order in which the steps are listed.
Table 2
Troubleshooting Test Steps    Values    Results    
1. Engine At Idle Speed
A. This condition is normal operation. The engine has been idling for an extended amount of time and the Electronic Control Module (ECM) will shut down the engine.
B. The "Engine Idle Shutdown Enable Status" parameter in Caterpillar Electronic Technician (ET) can be disabled. The amount of time before engine shutdown can then be configured.
   
Normal Operation
   
Result: This condition is normal operation.
Return the unit to service.