Table 44
Troubleshooting Test Steps
Values Results
1. Check that the latest available software is installed and
there are no applicable Technical Information Bulletins or Spe-
cial Instruction documentation released
A. Ensure that the latest software is installed on the engine ECM.
B. Ensure that the latest software is installed on the Dosing Control
Unit (DCU)
If necessary, refer to Troubleshooting, “ECM Software - Install” for
the correct procedure.
C. Ensure all Technical Information Bulletins and/or Special Instruc-
tion documented for the issue and/or product are reviewed and
followed.
Software and
Publications
Result: The latest software is not installed.
Repair: Install the latest engine ECM software and then
install the latest DCU software. If necessary, refer to Trou-
bleshooting, “ECM Software - Install” for the correct
procedure.
Start the engine and wait for 2 minutes.
If the fault is cleared, return the engine to service.
If the fault is still present, proceed to Test Step 2.
Result: Applicable Technical Information Bulletin/Special
Instruction publication is available.
Repair: Review and follow instructions provided in the
available publication.
Result: The latest software is installed.
Proceed to Test Step 2.
2. Check the DEF Tank Filling Procedure
A. Ensure that the engine has been stopped before the DEF tank is
filled.
Refer to Operation and Maintenance Manual, “Diesel Exhaust Fluid
- Fill” for the correct procedure.
Note: If the DEF tank is filled with the engine running, diagnostic
codes 4334-16 (E930 (2)) or 4334-18 (E931 (2)) may become ac-
tive .
Filling
procedure
Result: The DEF tank has been filled using the correct
procedure.
Proceed to Test Step 3.
Result: The correct procedure has not been used to fill
the DEF tank.
Repair: Use the correct procedure to fill the DEF tank.
Refer to Operation and Maintenance Manual, “Diesel Ex-
haust Fluid - Fill” for the correct procedure.
3. Clean the DEF Tank Filler Screen
A. Clean dirt and debris from around the tank cap before removing
the cap. Blockages can be caused by a build-up of dirt and debris
around the cap.
Note : A blocked DEF filler cap can also cause a 5392-31 ( E1370
(2)) code.
B. Clean the DEF filler screen. Refer to Operation and Mainte-
nance Manual, DEF Filler Screen - Clean.
C. If necessary, replace the DEF tank filler screen or the DEF tank
filler cap.
D. Use the electronic service tool to perform an “Aftertreatment
System Functional Test” .
DEF filler cap Result: The “Aftertreatment System Functional Test” was
successful. The diagnostic code is no longer active.
Return the engine to service.
Result: The “Aftertreatment System Functional Test” was
not successful. The diagnostic code is still active.
Proceed to Test Step 4.
(continued)
108 UENR4469-36
Symptom Troubleshooting
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
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