TEST OPTIONS
REASON FOR QUESTION
YES
NO
Visual Inspection
4.
Is air present from
main air supply hose?
If air is not present from
main air supply hose, main
air supply hose is faulty.
Replace main air supply
hose (para 23-2).
KNOWN INFO
Front and rear air
gages read 120 psi.
Air hoses and fittings
free from leaks.
Pressure protection valve OK.
POSSIBLE PROBLEMS
Faulty main air supply hose.
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
2-1868 Change 1