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

TM 9-2320-366-20-3

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

FAILS TO INFLATE OR DEFLATE

INITIAL SETUP

Equipment Conditions

Tools and Special Tools

Engine shut down (TM 9-2320-366-10-1).

Tool Kit, Genl Mech (Item 46, Appendix C)

Pan, Wash (Item 25, Appendix C)

Materials/Parts

Goggles, Industrial (Item 15, Appendix C)

Soap, Laundry (Item 63, Appendix D)

START

WARNING

Read WARNING

KNOWN INFO

TEST OPTIONS

on following page.

Visual Inspection

Front and rear air

gages read 120 psi.

REASON FOR QUESTION

Is CTIS air hoses and

POSSIBLE PROBLEMS

fittings free from air leaks

If air is leaking during inflation

Leaking air hoses or fittings.

during inflation mode?

mode, CTIS air hose(s) and/or

Faulty pressure protection

fittings are faulty.

valve.

Faulty main air supply hose.

Faulty CTIS manifold input

hose.

Faulty electrical system.

Replace air hose(s) and/or

YES

fittings (para 23-2).

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