MANIFOLD ASSEM. 3N8369 - Caterpillar

Table 1
J1939 Code and Description CDL Code and Description Comments
3362-14
Aftertreatment #1 DEF Dosing Unit Input Lines : Special Instruction E114 (2)
Aftertreatment #1 DEF Dosing Unit #1 Input Lines Not Purged Diesel Exhaust Fluid (DEF) pump #1 did not completely purge the DEF system after the engine was turned off.
The code is logged.
7458-14
Aftertreatment #1 DEF Dosing Unit #2 Input Lines : Special Instruction E1663 (2)
Aftertreatment #1 DEF Dosing Unit #2 Input Lines Not Purged DEF pump #2 did not completely purge the DEF system after the engine was turned off.
The code is logged.
Table 2
Associated Codes
J1939 Code CDL Code Troubleshooting Procedure
3361-5 3102-5 Troubleshooting, "DEF Pump Motor - Test"
3361-6 3102-6 Troubleshooting, "DEF Pump Motor - Test"
4334-15 3090-20 Troubleshooting, "DEF Pressure Is High"
4334-16 E930 (1) Troubleshooting, "DEF Pressure Is High"
4376-5 3862-5 Troubleshooting, "DEF Return Valve - Test"
4376-6 3862-6 Troubleshooting, "DEF Return Valve - Test"
4376-14 3862-14 Troubleshooting, "DEF Return Valve - Test"
5966-6 3965-6 Troubleshooting, "DEF Control Module Power - Test"
6309-6 3966-6 Troubleshooting, "DEF Control Module Power - Test"
7457-5 5032-5 Troubleshooting, "DEF Pump Motor - Test"
7457-6 5032-6 Troubleshooting, "DEF Pump Motor - Test"
7459-15 5006–20 Troubleshooting, "DEF Pressure Is High"
7459-16 E1705 (1) Troubleshooting, "DEF Pressure Is High"
7522-6 4799-6 Troubleshooting, "DEF Control Module Power - Test"
7523-6 4800-6 Troubleshooting, "DEF Control Module Power - Test"
7536-5 5008-5 Troubleshooting, "DEF Return Valve - Test"
7536-6 5008-6 Troubleshooting, "DEF Return Valve - Test"
7536-14 5008-14 Troubleshooting, "DEF Return Valve - Test"
Wait 2 minutes after the engine has stopped before turning the battery disconnect switch to the OFF position. The Diesel Exhaust Fluid (DEF) system requires 2 minutes to purge DEF from system components automatically. Failing to complete the purge could damage the Selective Catalyst Reduction (SCR) system.
Probable Causes
DEF pump
CodesRecommended Actions
Table 3
Troubleshooting Test Steps Values Results
1. Review the "Aftertreatment Abnormal Shutdown History"
A. Connect Cat® Electronic Technician (ET) to the service tool.
B. Select the "Selective Catalyst Reduction System".
C. Proceed to "Aftertreatment Abnormal Shutdown History". Select the "Information" tab, then select the "History" tab in the Cat ET menu.
D. Review the engine shutdown type for cold shutdown occurrences.
Note: If the "Aftertreatment Abnormal Shutdown History" shows that the system was not allowed the full 2 minutes to purge, inform the operator to wait 2 minutes after key-off before turning the battery disconnect to the OFF position.
DEF Pump
Result: The system was not allowed 2 minutes to purge before the battery disconnect was turned to the OFF position.
Inform the operator to wait 2 minutes after key-off before turning the battery disconnect to the OFF position. Return to service.
Result: The system was allowed 2 minutes to purge before the battery disconnect was turned to the OFF position.
Proceed to Test Step 2.
2. Check for Codes
A. Connect Cat ET.
B. Look for active codes that are associated with the system for the event code.
Codes
Result: An associated code is active.
Repair: Troubleshoot the associated code.
Verify that the repair eliminated the problem.
If the procedure did not correct the issue, contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).