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TM 9-2320-364-20-3
2-2168
13. CTIS LOW AIR INDICATOR STAYS ON OVER 110 PSI.
INITIAL SETUP
1.
Is the LOW AIR light on and
not flashing?
Go to Fault 13 or 14 in
this section of the
manual.
START
YES
NO
System air pressure greater
than 110 psi (758 kPa).
Pressure switch faulty.
CTIS wire harness faulty.
Controller faulty.
Front manifold faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
Solid light means no system air
presssure above 82 to 90 psi
(565 to 621 kPa) available.
Flashing light means leaks in
CTIS system which do not
allow air pressure to build
adequately.
2-26. CENTRAL TIRE INFLATION SYSTEM (CTIS) TROUBLESHOOTING (CONT.)
Tools and Special Tools
Tool Kit, General Mechanic’s: Automotive
(Item 74, Appendix G)
STE/ICE-R (optional) (Item 3, Appendix G)
Jumperwire
Multimeter (Item 44, Appendix G)
Equipment Condition
Engine OFF, (TM 9-2320-364-10)
Parking brake applied, (TM 9-2320-364-10)
Wheel chocked, (TM 9-2320-364-10)
CTIS front manifold cover removed, (Para 13-8)
Front access cover opened,
(TM 9-2320-364-10)
CTIS turned on, (TM 9-2320-364-10)
References
TM 9-2320-364-10
TM 9-4910-571-12&P
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