(Table 60, contd)
Troubleshooting Test Steps
Values Results
3. Recover the Aftertreatment System
A. Connect to the electronic service tool.
B. Run the engine.
C. Perform the “Aftertreatment Recovery Procedure” .
Note: Engine RPM Override may be necessary to complete the
Aftertreatment Recovery Procedure.
Test Result: The “Aftertreatment Recovery Procedure” com-
pleted successfully.
Return the unit to service.
Result: The “Aftertreatment Recovery Procedure” failed.
An error code is generated by the electronic service tool.
Repair: Troubleshoot the error code. Refer to Trouble-
shooting, “Service Tool Error Identifiers”.
Result: The “Aftertreatment Recovery Procedure” failed.
No error codes are generated.
Proceed to Test Step 4.
4. Check for High Sulfur Fuel
A. Ensure that the correct specification of fuel is being used. Refer
to the Operation and Maintenance Manual for the correct
specification.
Note: If fuel with a high sulfur content is used, this fault will reoccur
and a replacement CEM may be required.
Fuel Result: High sulfur fuel is in use.
Repair: Drain the fuel tank, flush the fuel lines, and re-
place the fuel filters.
Refill the fuel system with fuel of the correct specification.
Start the engine and use the electronic service tool to
perform the “Aftertreatment Recovery Procedure” . If the
procedure is successful, return the unit to service. If the
procedure fails, contact the Dealer Solutions Network
(DSN).
Note: Engine RPM Override may be necessary to com-
plete the Aftertreatment Recovery Procedure.
Result: The fuel is the correct specification.
Contact the Dealer Solutions Network (DSN).
i08787192
Diesel Particulate Filter
Collects Excessive Soot
(If Equipped)
This procedure is only applicable to engines that
have a Diesel Particulate Filter (DPF) installed.
If the soot load becomes excessive, the ECM
activates the applicable code.
UENR4469-36 125
Symptom Troubleshooting
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