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TM 9-2320-364-20-3
2-2176
13. CTIS LOW AIR INDICATOR STAYS ON OVER 110 PSI (CONT).
5.
Are 4.7 to 5.2 vdc measured
at wire to low air pressure
switch?
Replace front manifold
(Para 13-7). Verify
repair go to Step 6 of
this Fault.
NO
System air pressure greater
than 110 psi (758 kPa).
LOW AIR light solid.
Pressure switch OK.
CTIS wire harness OK.
CTIS controller OK.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
Pressure switch receives
voltage from front manifold. If
4.7 to 5.2 vdc is not present on
pressure switch wire, front
manifold is faulty.
WARNING
CTIS front manifold faulty.
YES
Read WARNING
on Page 2-2177
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