TM 5-3895-385-23-1
0036
Table 1. SPN#157, FMI#2 ― Fuel Rail Pressure Signal Not Changing -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. If fault code SPN#157, FMI#3 is
not displayed, turn keyless
engine switch to OFF position
(TM 5-3895-385-10), and
proceed to next malfunction.
2. Fuel pressure sensor or
1. Disconnect engine ECM wiring
connector pins damaged.
harness connector W25 C6
from rail fuel pressure sensor
(WP 0451, Vol 3, Figure 45).
2. Inspect the rail fuel pressure
1. If damaged, replace fuel
sensor and connector pins.
pressure sensor (WP 0337, Vol
2).
2. If no damage is found, proceed
to next test.
3. Inspect the W25 engine ECM
1. If damaged, replace engine
wiring harness and connector
ECM wiring harness (WP 0334,
W25 C6 for damage or loose
Vol 2).
pins.
2. If no damage is found, proceed
to next test.
4. Turn keyless engine switch to
AUX position (TM 5-3895-385-
10), but do not start engine.
Wait for 30 seconds.
5. Check active engine faults
1. If fault code SPN#157, FMI#3 is
screen for fault code SPN#157,
displayed, turn keyless engine
FMI#3.
switch to OFF position (TM 5-
3895-385-10), and proceed to
next test.
2. If fault code SPN#157, FMI#3 is
not displayed, turn keyless
engine switch to OFF position
(TM 5-3895-385-10), and
proceed to next malfunction.
0036-2
