KNOWN INFO
TEST OPTIONS
REASON FOR QUESTION
YES
NO
Visual Inspection
5.
Is air present from CTIS
manifold input hose?
If air is not present from
CTIS manifold input hose,
CTIS manifold input hose
is faulty.
Replace CTIS manifold
input hose (para 23-2).
Front and rear air gages read
120 psi.
Air hoses and fittings free
from leaks.
Pressure protection valve OK.
Main air supply hose OK.
POSSIBLE PROBLEMS
Go to Electrical System Troubleshooting
(e82. Central Tire Inflation System (CTIS)
Does Not Operate).
Faulty CTIS manifold input
hose.
Faulty electrical system.
m5. CENTRAL TIRE INFLATION SYSTEM (CTIS) ECU INDICATES NO FAULT CODE BUT SYSTEM
FAILS TO INFLATE OR DEFLATE (CONT)
TM 9-2320-365-20-2
(2-1871 Blank)/2-1872 Change 1