TEST OPTIONS
REASON FOR QUESTION
YES
NO
Visual Inspection
m3. FIVE CENTRAL TIRE INFLATION SYSTEM (CTIS) ECU INDICATOR LIGHTS FLASHING (CONT)
Replace rear axle CTIS
quick release valve
(para 12-9).
4.
KNOWN INFO
TM 9-2320-365-20-2
2-1828 Change 1
If air exhausts from CTIS quick
release valve during inflation
mode, CTIS quick release valve
is faulty.
Are rear axle CTIS quick
release valves free from
exhausting air during
inflation mode?
Front and rear air pressure
gages read 120 psi.
Air hose and fittings OK.
Front axle CTIS quick release
valve OK.
POSSIBLE PROBLEMS
Faulty rear axle CTIS quick
release valve.
Faulty wheel valve.
Faulty front wheel kneeling
valve.
Faulty wheel seals.
Faulty electrical system.
