TM 5-3895-385-23-1
0040
CAUTION
Dirt and debris can contaminate fuel system. Clean all fittings before disassembly, and cap/plug
all open fuel lines and ports to prevent contamination from entering fuel system. Failure to comply
may cause damage to equipment.
Table 1. SPN#157, FMI#18 ― Fuel Pressure Lower Than Commanded Pressure.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Multiple fault codes.
1. Install fuse box (WP 0277, Vol
2).
2. Connect battery cables (WP
0357, Vol 2).
3. Start engine (TM 5-3895-385-
10) and idle for 1 minute.
4. Check active engine faults
1. If fault code SPN#157, FMI#18
screen for fault code SPN#157
is displayed, proceed to next
FMI#18.
malfunction.
2. If fault code SPN#157 FMI#18 is
not displayed, proceed to next
test.
5. Check inactive engine faults
1. If fault code SPN#157, FMI#18
screen for fault code SPN#157
with high fault counts is
FMI#18 with high fault counts.
displayed, proceed to next
malfunction.
2. If fault code SPN#157, FMI#18
is not displayed, turn keyless
engine switch to the OFF
position (TM 5-3895-385-10). No
fault present; restore equipment
to original condition.
2. Fuel leak.
1. Inspect fuel filter lines for fuel
1. If leaking, replace the fuel filter
leaks (WP 0331, Vol 2).
lines (WP 0331, Vol 2).
2. If not leaking, proceed to next
test.
2. Inspect fuel supply line for fuel
1. If leaking, replace the fuel
leaks (WP 0331, Vol 2).
supply line (WP 0331, Vol 2).
2. If not leaking, proceed to next
test.
3. Inspect fuel drain line for fuel
1. If leaking, replace the fuel drain
leaks (WP 0331, Vol 2).
line (WP 0331, Vol 2).
