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TM 9-2320-364-20-3
2-1924
Are all CTIS connectors fully
connected?
2. CTIS INOPERATIVE.
INITIAL SETUP
1.
Secure
loose connections.
Verify repair,
go to Step 11 of
this Fault.
START
YES
NO
Heater operates indicating 24
vdc are input to circuit breaker
CB 17.
System air pressure greater
than 110 psi (758kPa).
CTIS lines and components
not leaking.
No lights illuminated on
controller cover.
CTIS harness connections faulty.
Voltage regulator faulty.
CTIS protection device faulty.
Circuit breaker CB17 faulty.
Wire 1880 faulty.
Wire 1435 faulty.
CTIS controller faulty.
Wire 1065 faulty.
Front manifold faulty.
Wire 1064 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
CTIS will not operate properly if a
connector is not plugged in fully.
2-25. 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)
Multimeter (Item 44, Appendix G)
Jumperwire
Equipment Condition
Engine OFF, (TM 9-2320-364-10)
Parking brake applied, (TM 9-2320-364-10)
Wheels chocked, (TM 9-2320-364-10)
Front access cover opened,
(TM 9-2320-364-10)
CTIS turned on, (TM 9-2320-364-10)
LHS fully extended, (TM 9-2320-364-10)
References
TM 9-2320-364-10
TM 9-4910-571-12&P
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