STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
TM 9-2320-363-20-1
Section 4
TROUBLESHOOTING CHARTS
E. FLASH CODE: 37
J1587 CODE: P94 3 . FUEL PRESSURE SENSOR (FPS) CIRCUIT FAILED HIGH (HIGH VOLTAGE)
37-7 Final Check
Reconnect all connectors.
Code 94/3.
Reprogram ECM. Then go to
Turn ignition on.
37-30.
Clear codes.
No codes.
Repairs are complete.
Start engine. Run for one minute
or until "Check Engine" light
Any other codes
Go to START-1, pg 3-345.41,
comes on.
except Code 94/3
to service other codes.
Stop engine.
Check active codes.
37-8 Check FPS Connectors
Inspect terminals at FPS
Terminals and
Replace FPS. Then go to 37-
7.
connectors (sensor and harness
connectors are okay.
sides) for damage; bent, corroded,
and unseated pins or sockets.
Problem found
Repair terminals/connectors.
Then go to 37-30.
37-30 Verify Repairs
Turn ignition off.
(No codes).
Repairs are complete.
Reconnect all connectors.
Turn ignition on
Code 94/3 (and
All system diagnostics are
Clear codes.
any other codes).
complete. Review this section
Note status of "Check Engine"
from the start to find error.
light.
If "Check Engine" light does not
stay on, start engine and run
Any other codes
Go to START-1, pg 3-345.41,
until "Check Engine" light comes
except Code 94/3.
to service other codes.
on or engine has run warmed
(greater than 60 degrees C, 140
degrees F) for 1 minute.
Read inactive codes
Change 3 3-345.301
