TIP-RIPPER 4T5452 - Caterpillar

Use this procedure to troubleshoot excessive soot in the Diesel Particulate Filter (DPF). Also use this procedure if one of the following event codes are active.Note: Certain systems will display multiple codes for troubleshooting. These "Associated Codes" must be used to troubleshoot the system effectively. Refer to Troubleshooting, "General Information" for additional information.Note: Refer to Troubleshooting, "Cat ET Service Features" for information about service features.The Engine Control Module (ECM) maintains an estimate of the soot load in the Diesel Particulate Filter (DPF). The estimate is based on the engine operating conditions. If the ECM estimates that the soot load is excessive, the ECM activates the applicable code.Note: After the regeneration is complete and soot loading is reduced to 0%, the active soot loading code will not become logged or cleared for 5 minutes.
Table 1
J1939 Codes and Description CDL Code and Description Comments
3715-31
DPF Active Regeneration Inhibited Due to Permanent System Lockout E991 (3)
DPF Active Regeneration Inhibited Due to Permanent System Lockout The estimated soot load is high. The engine will have a 100% derate and will shut down 5 minutes after the code becomes active.
3719-0
DPF Active Regeneration Inhibited Due to Permanent System Lockout : High - most severe (3) E995 (3)
High DPF #1 Soot Loading The estimated soot load is high. Engine will shut down 5 minutes after the code becomes active. Engine may be restarted.
3719-16
DPF Active Regeneration Inhibited Due to Permanent System Lockout : High - moderate severity (2) E995 (2)
High DPF #1 Soot Loading The estimated soot load is high.
Table 2
Associated Diagnostic Trouble Codes
2771-7
3609-15
3711-31
3750-31
Table 3
Troubleshooting Test Steps Values Results
1. Check for Codes
A. Establish communication between Cat ® Electronic Technician (ET) and the Electronic Control Module (ECM).
B. Download the "Warranty Report" from the engine ECM before performing any troubleshooting or clearing diagnostic trouble codes.
C. Look for the following codes:
- 3719-16
- 3719-0
- 3715-31
Codes
Result: A 3715-31 code is present.
Proceed to Test Step 2.
Result: One of the following codes are present:
- 3719-16
- 3719-0
Proceed to Test Step 3.
2. Code 3715-31 is Active
A. The 3715-31 code indicates that the engine has continued to run after repeated warnings and engine shutdowns. The DPF must be replaced. Refer to the Disassembly and Assembly, "Diesel Particulate Filter - Remove and Install (Clean Emissions Module)" for the correct procedure.
B. The DPF Ash model must be reset after DPF is replaced. Refer to Troubleshooting, "Cat ET Service Features, DPF Ash Service" for information on resetting the ash model.
DPF
Result: A 3715-31 code is present.
Repair: Replace the DPF. Refer to the Disassembly and Assembly, "Diesel Particulate Filter - Remove and Install (Clean Emissions Module)" for the correct procedure. After the DPF has been replaced, clear the 3715-31 code (a factory password will be necessary).
Proceed to Test Step 3.
3. Associated Codes
A. Establish communication between Cat ET and the ECM.
B. Check Cat ET for any associated codes that are listed in Table 2.
Associated codes
Result: An associated code is active or logged.
Repair: Troubleshoot any codes that are present before continuing with this procedure.
Result: An associated code is not active or logged.
Proceed to Test