0335635 JOHNSON CYLINDER HEAD ASSY.

Table 1
Diagnostic Trouble Codes for SCR Warning System Problem
J1939 Code Description Notes
5246-15 Aftertreatment SCR Operator Inducement Severity : High - least severe (1) This code is a Level 1 inducement associated with an emission activated fault.
The Emissions System Malfunction Lamp is on.
5246-16 Aftertreatment SCR Operator Inducement Severity : High - moderate severity (2) This code is a Level 2 inducement associated with an emission activated fault.
The Emissions System Malfunction Lamp is on and the Action Lamp is flashing.
The engine is derated.
5246-0 Aftertreatment SCR Operator Inducement Severity : High - most severe (3) This code is a Level 3 inducement associated with an emission activated fault.
The Emissions System Malfunction lamp is on, the Action lamp is flashing, and the warning horn may sound.
The engine is derated.
The engine may stop. Associated Codes
Troubleshoot any associated diagnostic codes listed in Table 2 that are present. Refer to "Inducement Type" in Table 2 for the correct Inducement table.
Table 2
Associated Codes
J1939 Code Code Description Inducement Type
27–3 EGR Control Actuator Position Sensor: Voltage Above Normal NRS Inducement
27–4 EGR Control Actuator Position Sensor: Voltage Below Normal NRS Inducement
2791-6 Engine Exhaust Gas Recirculation (EGR) Valve Control : Current Above Normal NRS Inducement
2791-7 Engine Exhaust Gas Recirculation (EGR) Valve Control : Not Responding Properly NRS Inducement
Table 3
Troubleshooting Test Steps Values Results
1. Check for Associated Codes
A. Use the electronic service tool to check for active diagnostic codes.
Associated Codes
Result: Associated codes are logged or active.
Repair: Troubleshoot the associated codes. Refer to Troubleshooting, "Diagnostic Trouble Codes" for the proper procedure.
Proceed to Test Step 2.
2. "Air System Motor Valve Verification Test"
A. Use the electronic service tool to perform the "Air System Motor Valve Verification Test".
Diagnostic codes
Result:There are active diagnostic codes as a result of the "Air System Motor Valve Verification Test".
Repair: Troubleshoot the codes. Refer to Troubleshooting, Diagnostic Trouble Codes.
Once the fault has been repaired, operate the engine for at least 2 minutes. If no more faults are present, the inducement code will be cleared.
Result: The inducements have not cleared.
Contact the Dealer Solutions Network (DSN).
World-Wide Reduced Performance Setting
Table 4
World-Wide Reduced Performance Setting
Category 3 Fault (Non-Tampering NOx Control Monitoring and Impeded EGR)
- Normal operation Level 1 Level 2 Level 3 Override
Inducement Time
First Occurrence None 36 Hours 64 Hours 50 Percent torque
Shut down or idle
Until fault heals Cycling the keyswitch will give 20 minutes of full power
The system must be fault free for 40 hours before the system will reset to zero. If the fault is intermittent, and returns within the 40 hours, then the repeat occurrence inducement time will be triggered.
The override can only be used once
Inducement Time
Repeat Occurrence None None 5 Hours 50 Percent torque
Shut down or idle
Until fault heals Cycling the keyswitch will give 20 minutes of full power
Inducement None None 75 Percent of torque
Notification None Emission malfunction lamp will be on solid Emission malfunction lamp will flash Emission malfunction lamp will flash
The stop lamp will be on solid Emission malfunction lamp will flash
Contact your Cat dealer at level 1 warning, do not let the fault develop. World-Wide Reduce Time Setting
Table 5
World-Wide Reduced Time Setting
Category 3 Fault (Non-Tampering NOx Control Monitoring and Impeded EGR)
- Normal operation Level 1 Level 2 Level 3 Override
Inducement Time
First Occurrence None 18 Hours 18 Hours 50 Percent torque
Shut down or idle
Until fault heals Cycling the keyswitch will give 20 minutes of full power
The system must be fault free for 40 hours before the system will reset to zero. If the fault is intermittent, and returns within the 40 hours, then the repeat inducement time will be triggered.
The override can only be used once.
Inducement Time
Repeat Occurrence None None 108 Minutes 50 Percent torque
Shut down or idle
Until fault heals Cycling the keyswitch will give 20 minutes of full power
Inducement None None None
Notification None Emission malfunction lamp will be on solid Emission malfunction lamp will flash Emission malfunction lamp will flash
The stop lamp will activate Emission malfunction lamp will flash
Contact your Cat dealer at level 1 warning, do not let the fault develop.