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Page Title:
LOW OIL PRESSURE INDICATOR DOES NOT OPERATE - continued |
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 TM 10-3930-673-20-1
23. LOW OIL PRESSURE INDICATOR DOES NOT OPERATE (CONT).
4
KNOWN INFO
TEST OPTIONS
Low oil pressure.
Engine oil pressure switch test.
Is engine oil pressure switch
Other gage lights work.
STE/ICE-R #91.
OK (Para 8-14)?
12 vdc present at socket.
REASON FOR QUESTION
Bulb OK.
If continuity is not present, engine
POSSIBLE PROBLEMS
oil pressure switch is faulty.
Parking brake switch faulty.
Wire 16 faulty.
Wire 2 faulty.
Replace engine oil
NO
pressure switch
(Para 8-14).
YES
5
KNOWN INFO
TEST OPTIONS
Low oil pressure.
Continuity check.
Is continuity present across
Other gages work.
STE/ICE-R #91.
wire 16?
12 vdc present at socket.
REASON FOR QUESTION
Bulb OK.
If continuity is not present across
Parking brake switch OK.
wire, wire is faulty.
POSSIBLE PROBLEMS
Wire 16 faulty.
Wire 2 faulty.
Replace or
NO
repair wire 16
(Para 8-48).
YES
Change 1
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