Table 55
Troubleshooting Test Steps
Values Results
7. Check the DEF Coolant Diverter Valve Solenoid Operation
A. Turn the keyswitch to the ON position.
B. Start the engine.
C. Connect to the electronic service tool.
D. Set the status of the coolant diverter valve to OPEN using the
“DEF Coolant Diverter Valve Solenoid Override” for 20 minutes.
Note: The DEF tank temperature must be within 5° C (9° F) of
ambient air temperature prior to performing this override.
E. Monitor the “DEF Tank Temperature” and make sure that there
is a temperature increase of at least 3° C (5.4° F).
Temperature rise Result: The DEF tank temperature increased by at least
3° C (5.4° F).
Return the unit to service.
Result: The DEF tank temperature did not increase by at
least 3° C (5.4° F).
Repair: Replace coolant diverter valve.
Proceed to Test Step 8.
8. Check the DEF Coolant Diverter Valve Solenoid Operation
A. Turn the keyswitch to the ON position.
B. Start the engine.
C. Connect to the electronic service tool.
D. Set the status of the coolant diverter valve to OPEN using the
“DEF Coolant Diverter Valve Solenoid Override” for 20 minutes.
Note: The “DEF Coolant Diverter Valve Solenoid Override” will
only run for 5 minutes. Repeat the override four times.
Note: The DEF tank temperature must be within 5° C (9° F) of
ambient air temperature prior to performing this override.
E. Monitor the “DEF Tank Temperature” and make sure that there
is an increase of at least 3° C (5.4° F).
Temperature rise Result: The DEF tank temperature increased by at least
3° C (5.4° F).
Return the unit to service.
Result: The DEF tank temperature did not increase by at
least 3° C (5.4° F).
Repair : Repair the DEF Tank header sensor with the
DEF Manifold Sensor Kit. Refer to Disassembly and As-
sembly, Manifold (DEF Heater) Sensor - Disassemble
(Temperature, Level, Quality DEF Manifold Sensor) and
Manifold (DEF Heater) Sensor -Assemble (Temperature,
Level, Quality DEF Manifold Sensor).
Repeat this Test Step.
If the fault is still present, contact the Dealer Solutions
Network (DSN).
i06155905
Diesel Oxidation Catalyst Has
Incorrect Inlet Temperature
This procedure is only applicable to engines that
have a Diesel Particulate Filter (DPF).
UENR4469-36 121
Symptom Troubleshooting
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
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