TM 5-3895-385-23-1
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Table 1. SPN#168, FMI#18 ― Engine ECM Supply Voltage Level Below
Minimum System Voltage Level -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
16.Measure the resistance from the
1. If resistance is greater than 100
engine interface wiring harness
kΩ, proceed to next test.
connector W16 J3 pin 3 to all pins
in the engine interface wiring
harness connector W16 J2 (WP
0443, Vol 3 and WP 0451, Vol 3,
Figure 19).
2. If resistance is less than 100
kΩ, replace engine interface
wiring harness (WP 0388, Vol
2).
17.Measure the resistance from the
1. If resistance is greater than 100
engine interface wiring harness
kΩ, restore equipment to
connector W16 J3 pin 4 to all pins
original condition, and proceed
in the engine interface wiring
to next malfunction.
harness connector W16 J2 (WP
0443, Vol 3 and WP 0451, Vol 3,
Figure 19).
2. If resistance is less than 100
kΩ, replace engine interface
wiring harness (WP 0388, Vol
2).
5. Engine ECM fault.
1. Turn BATTERY DISCONNECT
switch to OFF position (TM 5-
3895-385-10), and wait for 5
seconds.
2. Turn BATTERY DISCONNECT
switch to ON position (TM 5-
3895-385-10).
3. Start engine (TM 5-3895-385-10)
and let it idle for 1 minute.
4. Check active engine faults screen
1. If fault code SPN#168, FMI#18
for fault code SPN#168, FMI#18.
is displayed, turn keyless
engine switch to the OFF
position (TM 5-3895-385-10),
and replace engine ECM (WP
0332, Vol 2).
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