TM 5-3895-385-23-1
0007
Table 1. SPN#94, FMI#2 ― Fuel Rail Pressure Signal Not Changing -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. Check active engine faults
1. If fault codes SPN#157, FMI#3
screen for fault codes
and SPN#157, FMI#4 are
SPN#157, FMI#3 and
displayed, turn keyless engine
SPN#157, FMI#4.
switch to OFF position (TM 5-
3895-385-10), and perform
troubleshooting as necessary.
2. If fault codes SPN#157, FMI#3
and SPN#157, FMI#4 are not
displayed, proceed to next
malfunction.
2. Rail fuel pressure sensor fault.
1. Disconnect engine ECM wiring
harness connector W25 C6
from rail fuel pressure sensor
(WP 0451, Vol 3, Figure 43).
2. Inspect rail fuel pressure sensor
1. If damaged, replace rail fuel
and connector pins for damage.
pressure sensor (WP 0333, Vol
2).
2. If no damage is found, proceed
to next test.
3. Inspect engine ECM wiring
1. If damaged, replace engine
harness connector W25 C6 for
ECM wiring harness (WP 0334,
damage.
Vol 2).
2. If no damage is found, proceed
to next malfunction.
3. Circuit response incorrect.
1. Turn keyless engine switch to
the AUX position (TM 5-3895-
385-10), but do not start
engine. Wait 30 seconds.
2. 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 the OFF position (TM
5-3895-385-10), and proceed to
next malfunction.
2. If fault code SPN#157, FMI#3 is
not displayed, turn keyless
engine switch to the OFF
position (TM 5-3895-385-10),
and proceed to malfunction 5.
0007-2
