TEST OPTIONS
REASON FOR QUESTION
YES
Visual Inspection
m3. FIVE CENTRAL TIRE INFLATION SYSTEM (CTIS) ECU INDICATOR LIGHTS FLASHING (CONT)
Replace wheel seals
(para 12-2).
6.
KNOWN INFO
POSSIBLE PROBLEMS
TM 9-2320-365-20-2
Front and rear air pressure
gages read 120 psi.
Air hose and fittings OK.
Front axle CTIS quick release
valve OK.
Rear axle CTIS quick release
valve OK.
Wheel valves OK.
Front wheel kneeling valves
OK.
Faulty wheel seals.
Faulty electrical system.
Are wheel seals free from
major leaks?
Perform Electrical System Troubleshooting
(e85. Central Tire Inflation System (CTIS)
Does Not Operate).
Seriously damaged wheel seals
will audibly exhaust air and
cause CTIS to shut down with
five CTIS ECU mode lights
flashing.
NO
(2-1853 Blank)/2-1854 Change 1