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TM 9-2320-364-20-3
2-2174
13. CTIS LOW AIR INDICATOR STAYS ON OVER 110 PSI (CONT).
4.
Are 4.7 to 5.2 vdc measured
at back of connector for MC
111, terminal 6 with MC 111
connected to CTIS controller?
Replace CTIS
controller (Para 13-7).
Verify repair, go to
Step 6 of this Fault.
YES
NO
System air pressure greater
than 110 psi (758 kPa).
LOW AIR light solid.
Pressure switch OK.
CTIS wire harness OK.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If 4.7 to 5.2 vdc are not present,
CTIS controller is faulty.
WARNING
CTIS controller faulty.
CTIS front manifold faulty.
Read WARNING
on Page 2-2175
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