TM 5-3895-385-23-1
0034
Table 1. SPN#177, FMI#0 ― Sensed Rail Fuel Pressure Exceeds Rail Relief Valve
Opening Pressure -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9. Engine ECM wiring harness
1. Disconnect engine ECM wiring
shorted to ground.
harness W25 C9 from fuel pump
actuator (WP 0451, Vol 3, Figure
46).
2. Measure resistance between
1. If resistance is less than 100
W25 C1 fuel pump actuator
kiloOhms (kΩ), replace
SIGNAL pin (pin 2) and engine
engine ECM wiring harness
block ground (WP 0443, Vol 3
(WP 0334, Vol 2).
and WP 0448, Vol 3, Figure 43).
2. If resistance is more than 100
kΩ, restore equipment to
original condition, and
proceed to next malfunction.
10.Intermittent engine harness
1. Start engine (TM 5-3895-385-10)
failure.
and run at idle.
2. Check active engine faults
1. If SPN#1347, FMI#4,
screen for multiple fault codes
SPN#1347, FMI#3, or
while moving engine harness,
SPN#633, FMI#31 fault code
beginning at ECM engine
is displayed, replace engine
harness connector W25 C1, and
ECM wiring harness (WP
working to fuel pump actuator
0334, Vol 2).
harness connector W25 C9.
2. If SPN#1347, FMI#4,
SPN#1347, FMI#3, or
SPN#633, FMI#31 fault code
is not displayed, replace fuel
pump actuator (WP 0330, Vol
2).
3. If the problem still exists, it is
possible that another fault
exists or that another
troubleshooting procedure
applies. If this was the first
time through the task, restore
equipment to original
condition, and restart
troubleshooting at
malfunction 1.
END OF WORK PACKAGE
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