C13 Industrial Engine Caterpillar


SCR Warning System Problem

Usage:

C13 JR9

Operator Level Inducement

Inducements are engine derates, vehicle speed limits, or other actions intended to prompt the operator to repair or maintain the emissions control system.

Inducement strategies are control actions required by EPA/ARB Tier 4 final and EU Stage IV regulations to ensure prompt correction of various failures in the engine NOx emissions control system. They require actions to limit engine performance and define required indications such as visual alarms including lamps and messages, as well as audible alarms, while the control actions are imposed.

Table 1
Diagnostic Codes Table 
J1939 Code  Code Description  Comments 
5246-0  Aftertreatment SCR Operator Inducement Severity : High - most severe (3)  This code is a Level 3 inducement associated with an emissions system fault. The engine is derated 100%, limited to low idle speed or 1000 RPM, and can experience 5 minute rolling shutdowns. 
5246-15  Aftertreatment SCR Operator Inducement Severity : High - least severe (1)  This code is a Level 1 inducement associated with an emissions system fault. 
5246-16  Aftertreatment SCR Operator Inducement Severity : High - moderate severity (2)  This code is a Level 2 inducement associated with an emissions system fault. 

Refer to Systems Operation, "DEF Dosing Control System" for details on inducement configuration options.

Associated Codes

Troubleshoot any associated diagnostic codes listed in Table 2 that are present.

Table 2
Associated Codes 
J1939 Code  Code Description  Inducement Category 
1231-9  J1939 Network #2 : Abnormal Update Rate  Category 1 
1231-14  J1939 Network #2 : Special Instruction  Category 2 
1235-9  J1939 Network #3 : Abnormal Update Rate  Category 1 
1235-14  J1939 Network #3 : Special Instruction  Category 2 
1761-3  Aftertreatment #1 Diesel Exhaust Fluid Tank Level : Voltage Above Normal  Category 1 
1761-4  Aftertreatment #1 Diesel Exhaust Fluid Tank Level : Voltage Below Normal  Category 1 
2659-17  Engine Exhaust Gas Recirculation (EGR) Mass Flow Rate : Low - least severe (1)  Category 3 
2791-5  Engine Exhaust Gas Recirculation (EGR) Valve Control : Current Below Normal  Category 3 
3031-7  Aftertreatment #1 DEF Tank Temperature : Not Responding Properly  Category 1 
3031-16  Aftertreatment #1 DEF Tank Temperature : High - moderate severity (2)  Category 2 
3031-18  Aftertreatment #1 DEF Tank Temperature : Low - moderate severity (2)  Category 2 
3216-7  Aftertreatment #1 Intake NOx : Not Responding Properly  Category 2 
3216-11  Aftertreatment #1 Intake NOx : Other Failure Mode  Category 2 
3216-12  Aftertreatment #1 Intake NOx : Failure  Category 2 
3217-16  Aftertreatment #1 Intake O2 : High - moderate severity (2)  Category 1 
3226-7  Aftertreatment #1 Outlet NOx : Not Responding Properly  Category 3 
3226-11  Aftertreatment #1 Outlet NOx : Other Failure Mode  Category 3 
3226-12  Aftertreatment #1 Outlet NOx : Failure  Category 3 
3227-16  Aftertreatment #1 Outlet O2 : High - moderate severity (2)  Category 1 
3242-3  Particulate Trap Intake Gas Temperature : Voltage Above Normal  Category 1 
3242-4  Particulate Trap Intake Gas Temperature : Voltage Below Normal  Category 1 
3360-3  Aftertreatment #1 DEF Controller : Voltage Above Normal  Category 2 
3360-4  Aftertreatment #1 DEF Controller : Voltage Below Normal  Category 2 
3360-9  Aftertreatment #1 DEF Controller : Abnormal Update Rate  Category 2 
3360-12  Aftertreatment #1 DEF Controller : Failure  Category 2 
3361-5  Aftertreatment #1 Diesel Exhaust Fluid Dosing Unit : Current Below Normal  Category 1 
3361-6  Aftertreatment #1 Diesel Exhaust Fluid Dosing Unit : Current Above Normal  Category 1 
3361-7  Aftertreatment #1 Diesel Exhaust Fluid Dosing Unit : Not Responding Properly  Category 1 
3361-11  Aftertreatment #1 Diesel Exhaust Fluid Dosing Unit : Other Failure Mode  Category 1 
3361-14  Aftertreatment #1 Diesel Exhaust Fluid Dosing Unit : Special Instruction  Category 2 
3511-11  Sensor Supply Voltage 3 : Other Failure Mode  Category 2 
3516-18  Aftertreatment #1 DEF Concentration : Low - moderate severity (2)  Category 2 
4334-3  Aftertreatment #1 Diesel Exhaust Fluid Doser Absolute Pressure : Voltage Above Normal  Category 2 
4334-4  Aftertreatment #1 Diesel Exhaust Fluid Doser Absolute Pressure : Voltage Below Normal  Category 2 
4334-7  Aftertreatment #1 Diesel Exhaust Fluid Doser Absolute Pressure : Not Responding Properly  Category 2 
4334-16  Aftertreatment #1 Diesel Exhaust Fluid Doser Absolute Pressure : High - moderate severity (2)  Category 1 
4334-18  Aftertreatment #1 Diesel Exhaust Fluid Doser Absolute Pressure : Low - moderate severity (2)  Category 2 
4354-5  Aftertreatment #1 Diesel Exhaust Fluid Line Heater #1 : Current Below Normal  Category 1 
4354-6  Aftertreatment #1 Diesel Exhaust Fluid Line Heater #1 : Current Above Normal  Category 1 
4355-5  Aftertreatment #1 Diesel Exhaust Fluid Line Heater #2 : Current Below Normal  Category 1 
4355-6  Aftertreatment #1 Diesel Exhaust Fluid Line Heater #2 : Current Above Normal  Category 1 
4356-5  Aftertreatment #1 Diesel Exhaust Fluid Line Heater #3 : Current Below Normal  Category 1 
4356-6  Aftertreatment #1 Diesel Exhaust Fluid Line Heater #3 : Current Above Normal  Category 1 
4360-3  Aftertreatment #1 SCR Catalyst Intake Gas Temperature : Voltage Above Normal  Category 1 
4360-4  Aftertreatment #1 SCR Catalyst Intake Gas Temperature : Voltage Below Normal  Category 1 
4360-16  Aftertreatment #1 SCR Catalyst Intake Gas Temperature : High - moderate severity (2)  Category 3 
4360-18  Aftertreatment #1 SCR Catalyst Intake Gas Temperature : Low - moderate severity (2)  Category 1 
4364-2  Aftertreatment #1 SCR Catalyst Conversion Efficiency : Erratic, Intermittent, or Incorrect  Category 1 
4364-18  Aftertreatment #1 SCR Catalyst Conversion Efficiency : Low - moderate severity  Category 3 
4374-5  Aftertreatment #1 Diesel Exhaust Fluid Pump Motor Speed : Current Below Normal  Category 2 
4374-6  Aftertreatment #1 Diesel Exhaust Fluid Pump Motor Speed : Current Above Normal  Category 2 
4374-8  Aftertreatment #1 Diesel Exhaust Fluid Pump Motor Speed : Abnormal Frequency, Pulse Width, or Period  Category 2 
4376-7  Aftertreatment #1 Diesel Exhaust Fluid Return Valve : Not Responding Properly  Category 2 
4792-14  Aftertreatment #1 SCR Catalyst System : Special Instruction  Category 2 
5392-31  Aftertreatment #1 Diesel Exhaust Fluid Dosing Unit Loss of Prime  Category 1 
5480-16  Aftertreatment #1 DEF Controller Temperature : High - moderate severity (2)  Category 2 
5491-5  Aftertreatment #1 Diesel Exhaust Fluid Line Heater Relay: Current Below Normal  Category 1 
5491-6  Aftertreatment #1 Diesel Exhaust Fluid Line Heater Relay: Current Above Normal  Category 1 
5758-11  Aftertreatment #1 Intake Gas Sensor Power Supply : Other Failure Mode  Category 2 
5759-11  Aftertreatment #1 Outlet Gas Sensor Power Supply : Other Failure Mode  Category 3 
5798-7  Aftertreatment #1 DEF Dosing Unit Heater Temperature : Not Responding Properly  Category 2 
5965-5  Aftertreatment #1 DEF Control Module Relay Control : Current Below Normal  Category 1 
5965-6  Aftertreatment #1 DEF Control Module Relay Control : Current Above Normal  Category 1 
5966-6  Aftertreatment#1 Diesel Exhaust Fluid Control Module Power Supply : Current Above Normal  Category 2 

Table 3
Troubleshooting Test Steps  Values  Results 
1. Check for Associated Codes

A. Connect to the electronic service tool.

B. Check for an active associated code. 
Associated Codes  Result: An associated code is active.

Troubleshoot the associated code. Refer to Troubleshooting, "Diagnostic Trouble Codes or Event Codes" for the proper procedure.

Once the associated code has been resolved, starting the engine will remove the inducement and the inducement code will become logged. 

Engine Emissions Operator Inducement Service Mode Override

This override allows the service technician to disable the inducement to troubleshoot problems. Factory passwords are required to activate this override. Once the override is activated, it is possible to navigate to other electronic service tool functions. Inmost cases the "Engine Emissions Operator Inducement Service Mode Override" will not need to be activated because the service tests performed in the applicable troubleshooting procedure will automatically reset the inducement. The "Engine Emissions Operator Inducement Service Mode Override" is located in the "Diagnostic Tests", "System Troubleshooting Section" of the engine ECM.

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