Table 101
Diagnostic Trouble Codes for Fuel Temperature Is High
J1939 Code PDL Code Code Description
(code descriptions may vary)
Comments
174-16 E363 (2) Engine Fuel Temperature 1 : High - moderate se-
verity (2)
The temperature of the low-pressure fuel in the
high-pressure fuel pump is high.
The ECM has been powered for at least 2
seconds.
The engine has been operating for at least 185
seconds.
There are no other faults in the electrical system.
The warning lamp will come on.
The engine may be derated by 20%.
The warning lamp will go off when the temperature
drops below the trip point for 15 seconds.
Probable causes
• Incorrect position of fuel shut-off valves
• Fuel level in tank
• Return fuel cooler
• Return fuel lines
• Location of the fuel tank
Note: The procedures have been listed in order of
probability. Complete the procedure in the order in
which the steps are listed.
Table 102
Troubleshooting Test Steps
Values Results
1. Check for Diagnostic Codes Active or Logged Diagnostic
codes.
A. Establish communication between the electronic service tool
and the Electronic Control Module (ECM). Refer to Troubleshoot-
ing, “Electronic Service Tools”, if necessary.
B. Use the electronic service tool to check for active or logged
codes.
Diagnostic Active
or Logged codes
Result: A diagnostic code is active or logged other than a
174-16 (E363 (2)) code.
Repair: Troubleshoot the active or logged code.
Result: A 174-16 (E363 (2)) diagnostic code is active or
logged.
Proceed to Test Step 2.
(continued)
UENR4469-36 203
Symptom Troubleshooting
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