(Table 54, contd)
Troubleshooting Test Steps
Values Results
3. Check the Engine Coolant Temperature
A. Start the engine. Allow the engine to warmup to normal operat-
ing temperature.
B. Connect to the electronic service tool.
C. Select the Status Parameters tab.
D. Check the coolant temperature.
The temperature should be greater than 50° C (122° F).
Coolant
temperature
Result: The coolant temperature is greater than 50° C
(122° F).
Proceed to Test Step 4.
Result: The coolant temperature is less than 50° C
(122° F).
Repair: Refer to Troubleshooting, “Coolant Temperature
Is Low” for troubleshooting information.
4. Check for Coolant Leaks
A. Check for coolant leaks in the supply and return lines to the
DEF tank header.
Leaks Result: There are no leaks in the supply or return lines.
Proceed to Test Step 5.
Result: There are leaks in the supply or return lines.
Repair: Repair the leaks and refill the coolant system.
If the fault is still present, proceed to Test Step 5.
5. Inspect the Coolant Lines for Restrictions and
Obstructions
A. Disconnect the coolant lines between the engine and the DEF
tank.
B. Check for a restriction or obstruction in the coolant lines.
Restrictions Result: There is a restriction in a line.
Repair: Repair or replace the lines with the restrictions.
Proceed to Test Step 8.
Result: The coolant lines are OK.
Reconnect the coolant lines.
Proceed to Test Step 6.
6. Check the Electrical Connection at the DEF Tank Header
A. Inspect electrical connector for DEF tank header . Refer to
Troubleshooting, “Electrical Connectors - Inspect” for further
information.
Check for corrosion or loose wires.
Electrical
connections
Result: The electrical connector is not corroded or loose.
Proceed to Test Step 7.
Result: The electrical connector is corroded and/or
loose.
Repair:Make the necessary repairs to the connectors.
Cycle the keyswitch.
Use the electronic service tool to perform the “Aftertreat-
ment System Functional Test” to verify that the repair
eliminates the fault.
Proceed to Test Step 8.
UENR4469-36 119
Symptom Troubleshooting
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
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