CENTRAL TIRE INFLATION SYSTEM (CTIS) ECU INDICATES NO FAULT CODE BUT SYSTEM FAILS TO INFLATE OR DEFLATE (cont)

TM 9-2320-366-20-3

m5. CENTRAL TIRE INFLATION SYSTEM (CTIS) ECU INDICATES NO FAULT CODE BUT SYSTEM

FAILS TO INFLATE OR DEFLATE (CONT)

KNOWN INFO

TEST OPTIONS

Visual Inspection

Front and rear air gages read

REASON FOR QUESTION

120 psi.

Is air present from CTIS

Air hoses and fittings free

manifold input hose?

If air is not present from

from leaks.

CTIS manifold input hose,

Pressure protection valve OK.

CTIS manifold input hose

Main air supply hose OK.

is faulty.

POSSIBLE PROBLEMS

Faulty CTIS manifold input

hose.

Faulty electrical system.

Replace CTIS manifold

YES

input hose (para 23-2).

Go to Electrical System Troubleshooting

(e85. Central Tire Inflation System (CTIS)

Does Not Operate).

(2-2119 Blank)/2-2120

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