STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
TM 9-2320-363-20-1
Section 4
TROUBLESHOOTING CHARTS
E. FLASH CODE: 36
J1587 CODE: P100 4 - OIL PRESSURE CIRCUIT FAILED LOW {(LOW VOLTAGE)
36-11 Check for Short on
Ground
Turn ignition off.
Greater than
Go to 36-6.
Remove jumper wires.
10,000 ohms.
Measure resistance between
sockets P2 and Y2 on the engine
Less than or
Signal line (ckt#530) and return
harness.
equal to 10,000 ohms.
line (ckt#452) are shorted
together. Repair short. Then
go to 36-30.
36-12 Replace OPS
Turn ignition off.
Check engine
Go to 36-7.
Replace OPS.
light comes on.
Reconnect all connectors.
Turn ignition on.
Check engine
Go to 36-30.
Clear Codes.
light does not
Start engine. Run until check
comes on.
light comes on or for 1 minute.
36-30 Verify Repairs
Turn ignition off.
(No codes).
Repairs are complete.
Reconnect all connectors.
Turn ignition on.
Code 100/4 (and
All system diagnostics are
Clear codes.
any other codes).
complete. Please review this
Note status of "Check Engine"
section from the start to find
light.
the error.
If "Check Engine" light does not
stay on, start engine and run until
Any other codes
Go to START-1, pg 3-345.41,
"Check Engine" light comes on
except Code 100/4.
to service other codes.
or engine has run warm (greater
than 60 degrees C, 140 degrees
F) 1 minute.
Read inactive codes.
Change 3 3-345.295
