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TM 9-2320-364-20-2
2-1176
4. WINDSHIELD WIPERS, ENGINE BRAKES AND ALL GAGES DO NOT OPERATE
(CONT).
4.
Is continuity measured
between wire 1435 terminal
on mag switch R25 and a
known good ground?
Repair wire 1435
(Para 7-101 and
schematic Fig 2-24).
Verify repair, go to
Step 5 of this fault.
YES
NO
Engine cranks indicating that
ENGINE switch and wire 1075
are OK.
Wire 1072 OK.
10 to 14 vdc not present at wire
1074.
Wire 1435 between magnetic
switch R25 and ground
faulty.
Relay R-25 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If wire 1435 is faulty, R25 will not
operate.
WARNING
5.
Do windshield wipers and
gages operate?
Fault not corrected.
Notify DS
Maintenance.
YES
NO
Engine cranks indicating that
ENGINE switch and wire
1075 are OK.
Wire 1072 OK.
10 to 14 vdc not present
at wire 1074.
Wire 1435 between magnetic
switch R25 and ground OK.
Relay R25 OK.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Verify repair.
If windshield wipers and gages
operate, fault has been
corrected.
Replace relay R25
(Para 7-93).
Verify repair, go to
Step 5 of this fault.
Fault corrected.
Read WARNING
on Page 2-1177
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