Section 4
TROUBLESHOOTING CHARTS
E. CODE37.FUEL PRESSURE SENSOR (FPS)SIGNAL VOLTAGE HlGH(Cont'd.)
TM 9-2320-383-20-1
STEP/SEQUENCE
-.
37.7 Final Check
l Reconnect all connectors.
l Turn ignition on.
l Clear codes.
l Start engine. Run for one minute
or until "Check Engine” light
comes on.
l Stop engine.
l Check active codes.
37.8 Check FPS Connectors
. Inspect terminals at FPS connectors
(sensor and harness sides) for
damage; bent, corroded and
.
unseated pins or sockets.
37.30 Verify Repairs
l Turn ignition off.
l Reconnect all connectors.
l Turn ignition on.
l Clear codes.
l Note status of “’check Engine’*
light.
l If "check Engine” light does not
stay on, start engine and run until
“Check Engine” light comes on
or engine has run warm (greater
than 50 degrees C, 122 degrees
F) for 1 minute.
Read historical codes.
RESULT
WHAT TO DO NEXT
C
o
d
e
3
7
.
Replace ECM, page 4-192.
Then go to 37-30.
No codes.
Any other codes
except Code 37.
to service other codes
T e r m i n a l s
a n d
Replace FPS, page 4-320.
connectors are okay.
Then go to 37-7.
Problem found.
page 3-2. Then go to 37-30.
Code 25 (no codes).
Code 37 (and
any other codes).
complete. Please review this
section from the stert to find the
error.
Any other codes
except Code 37.
to service other codes.
3-281
