(Table 44, contd)
Troubleshooting Test Steps
Values Results
4. Check the DEF Level
A. Turn the keyswitch to the ON position.
B. Check the current position of the DEF gauge. Turn the keyswitch
to the OFF position.
C. Clean dirt and debris from around the tank filler cap before re-
moving the cap. Add DEF to the DEF tank. Refer to Operation and
Maintenance Manual, Diesel Exhaust Fluid - Fill for the correct
procedure.
D. Turn the keyswitch to the ON position. Check for a change in the
gauge position.
E. If the gauge is in the full position, drain DEF from the tank and
look for a change in the gauge position.
Gauge
position
Result: The gauge did not move by adding or removing
fluid to the tank.
Proceed to Test Step 5.
Result: The gauge moved by adding or removing fluid to
the tank.
Proceed to Test Step 6.
5. Check the Electrical Connection at the DEF Tank Header
A. Turn the keyswitch to the OFF position.
B. Inspect the electrical connections to the DEF tank header. Refer
to Troubleshooting, “Electrical Connectors - Inspect” for further
information.
C. Inspect the connections for corrosion or loose wires.
Electrical
connections
Result : The electrical connections are free of corrosion
and loose wires.
Repair : Repair the DEF Tank header sensor with the DEF
Manifold Sensor Kit. Refer to Disassembly and Assembly,
Manifold (DEF Heater) Sensor - Disassemble (Tempera-
ture, Level, Quality DEF Manifold Sensor) and Manifold
(DEF Heater) Sensor -Assemble (Temperature, Level,
Quality DEF Manifold Sensor).
Proceed to Test Step 12.
Result : The electrical connections are not free of corro-
sion or loose wires.
Repair : Make the necessary repairs.
Proceed to Test Step 12.
6. Check the Diesel Exhaust Fluid (DEF) for Contamination
A. Check the DEF for contamination. Refer to Testing and Adjust-
ing, “Diesel Exhaust Fluid Quality - Test” for the correct procedure.
DEF quality
standards
Result: The DEF is contaminated.
Repair:
If the DEF is contaminated with oil-based fluid, the DEF
tank must be flushed. Refer to Systems Operating, Testing
and Adjusting “Diesel Exhaust Fluid Tank - Flush”
After flush procedure completed, proceed to Test Step 12.
Result: The DEF is not contaminated.
Proceed to Test Step 7.
(continued)
UENR4469-36 109
Symptom Troubleshooting
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
To Next Page
Loading...
