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Page Title:
LOW BRAKE PRESSURE INDICATOR LIGHT DOES NOT OPERATE - continued |
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 TM 10-3930-673-20-1
21. LOW BRAKE PRESSURE INDICATOR LIGHT DOES NOT OPERATE (CONT).
6
KNOWN INFO
TEST OPTIONS
Low brake pressure.
Continuity test.
Is continuity present between
Other gages work.
STE/ICE-R #91.
wire 2 at brake hydraulic
12 vdc present at socket.
REASON FOR QUESTION
Bulb OK.
pressure switch and known
If continuity is not present, wire is
Brake hydraulic pressure switch
good ground?
faulty.
OK.
Wire 11 OK.
POSSIBLE PROBLEMS
Wire 2 faulty.
Replace or repair
NO
wire 2 (Para 8-48).
YES
Repeat Step 3
through Step 6 of
this fault.
7
KNOWN INFO
TEST OPTIONS
Low brake pressure.
Continuity test.
Are 1500 ohms present
Other gages work.
STE/ICE-R #91.
across resistor?
12 vdc not measured at socket.
REASON FOR QUESTION
POSSIBLE PROBLEMS
If 1500 ohms are not measured,
Resistor faulty.
resistor is faulty.
Wire 10 faulty.
Replace resistor
NO
(Para 8-9).
YES
Repair or replace
wire 10 (Para 8-9).
2-384
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