ARMY TM 9-6115-671-14
AIR FORCE TO 35C2-3-446-32
MARINE CORPS TM 09249A/09246A-14
4-41
TABLE 4-4. UNIT TROUBLESHOOTING (CONTINUED)
Not OK
FAULT INDICATOR DISPLAYS CIRCUIT FAILURE - OIL
PRESSURE (LOW) OR OIL PRESSURE (HIGH)
FAULT INDICATOR displays CIRCUIT
FAILURE - OIL PRESSURE (Low) or OIL
PRESSURE (High).
Check for improper lube oil
type. Refer to Appendix F.
Drain oil and replace oil filter.
Refer to TM 9-2815-259-24.
Refill with proper lube oil type.
Refer to Appendix F.
Not OK
OK
Test oil pressure sensor
circuit for breaks or loose
connections. Refer to
Schematic, FO-1.
Not OK
Repair or replace defective
wires or connectors. Refer
to Wiring Diagram, FO-3.
Test oil pressure sender
(see para. 4.13.1).
Replace oil pressure sender
(see para. 4.13.1).
Test oil pressure electrical circuit
for breaks or loose connections.
Refer to Schematic, FO-1.
Repair or replace defective wires
or connectors. Refer to wiring
Diagram, FO-3.
Is HEARTBEAT LED on I/O
interface module blinking?
Not OK
Notify next higher level of
maintenance.
Replace I/O interface
module (see para.4.8.25).
Yes
No
OK
OK
