KIT-SEAL 1560656 - Caterpillar

When the Aftertreatment Regeneration Device (ARD) requires troubleshooting, there will be multiple codes to assist the troubleshooting process. A "Soot Loading-High" code is not the cause of the fault. Troubleshoot any associated codes to clear the fault that has caused the "Soot Loading-High" code.Troubleshooting the associated codes may lead to a code that is the root cause of the fault.Engine operation must be kept to a minimum to minimize the amount of soot that is created. Follow the troubleshooting procedure to minimize the amount of engine operation.The Electronic Control Module (ECM) maintains an estimate of the soot load in the DPF. The estimate is based on the operating conditions of the engine. If the ECM estimates that the soot load is excessive, the ECM activates the applicable code.Note: After a regeneration and soot loading is reduced to 0%, the active soot loading code will not be logged or cleared for 5 minutes.
Table 1
Diagnostic Trouble Code for Excessive Soot Load
J1939 Code and Description Information that Relates to the Code
3719-16 High Diesel Particulate Filter #1 Soot Loading - Level 3 The estimated soot load is high. Engine speed and torque are derated. The warning lamp will flash and the DPF lamp will be on.
The keyswitch must be turned to the OFF position to complete the active regeneration.
3719-0 High Diesel Particulate Filter #1 Soot Loading - Level 3 The estimated soot load is high. The engine will stop. Active regeneration is inhibited. The warning lamp will flash, the shutdown lamp will be on, and the DPF lamp will be on.
The keyswitch must be turned to the OFF position. The electronic service tool must be used to regenerate the DPF.
Follow the troubleshooting procedure to determine the root cause of the problem. Troubleshooting Procedure
Connect the electronic service tool to the diagnostic connector. Check for diagnostic codes that relate to the Clean Emissions Module (CEM). Refer to Table 2. Troubleshoot any codes that are present before continuing with this procedure.
Table 2
Associated Codes
J1939 Suspect Parameter Number (SPN) Failure Mode Identifier (FMI)
110 3
110 4
168 3
168 4
3241 3
3241 4
3241 15
3242 3
3242 4
3242 15
3473 7
3473 11
3484 4
3556 6
3713 7
3713 31
4016 6
4765 3
4765 4
4765 15
5487 3
5487 4
6581 6 Use the electronic service tool to perform a service regeneration after the successful completion of the diagnostic procedures.
If there are no associated codes, proceed to Test Step 2.
Illustration 1 g03259356
Typical view of the CEM
(1) DPF outlet pressure sensor
(2) DPF outlet pressure sensor
(3) ARD combustion head
(4) Diesel Oxidation Catalyst (DOC)
(5) DOC intake temperature sensor
(6) DPF intake temperature sensor
(7) Diesel Particulate Filter (DPF)
(8) DPF outlet temperature sensor
Use the following procedure to test the ARD air system:
Use the electronic service tool to perform the ARD Air System Service Test.
If the ARD Air System Service Test is not successful, troubleshoot the ARD air supply and then proceed to Test Step 3.If the ARD Air System Service Test is successful, proceed to Test Step 3 .
Perform this Test Step if all the following conditions are true:
The "DPF Disable" switch was not in the Disabled position.
The ARD fuel