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TM 9-2320-360-20-3
Section 4
TROUBLESHOOTING CHARTS
E. FLASH CODE: 35
J1587 CODE:
P100 3 - OIL PRESSURE CIRCUIT FAILED HIGH (HIGH VOLTAGE)
NOTE - This chart is only to be used if:
1) All basic mechanical checks and physical inspections have been performed with no problem found, and
2) Diagnosis of DDEC-III was started at step START-1, pg H-25 and you have now been referred here.
STEP/SEQUENCE
35-1
Multiple Code Check
Were there any other active
codes besides Code 100/3?
35-2 Sensor Check
Turn ignition off.
Disconnect OPS connector.
Turn ignition on.
Start and run engine
(TM 9-2320-380-10).
Select Engine Temperature
(COOLANT TEMP or OIL
TEMP) on the DDR.
Warm up engine until
engine temperature reading is
greeter than 60 degrees C
(140 degrees F).
Leave engine running at idle after
warm up.
Reed active codes.
35-3
Return Circuit Check
Turn ignition off.
Disconnect engine harness
connector at the ECM.
Install a jumper wire between pins
A and B of the OPS
connector.
Read resistance between sockets
P2 and Y2 on the engine harness
connector.
RESULT
No other codes.
Go to 35-2.
Yes, any or all
of the following codes:
110/3 or 4, 175/3 or 4,
174/3 or 4, 102/3 or 4,
100/4.
Yes - but none
of the above.
Code 100/4 (and
any codes except
Code 100/3).
Code 100/3 (and any
other codes).
Less than or
equal to 5 ohms.
Greater than
5 ohms or open.
WHAT TO DO NEXT
Go to ENG5V-1 (page H-241).
Go to 35-2.
Go to 35-3.
Go to 35-5.
Go to 35-4.
Return line (ckt #452) is open.
Repair open. Then go to 35-30.
H-177
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