FIVE CENTRAL TIRE INFLATION SYSTEM (CTIS) ECU INDICATOR LIGHTS FLASHING (cont)

TM 9-2320-366-20-3

m3. FIVE CENTRAL TIRE INFLATION SYSTEM (CTIS) ECU INDICATOR LIGHTS FLASHING

(CONT)

KNOWN INFO

TEST OPTIONS

Front and rear air gages read

Visual Inspection

120 PSI.

Are CTIS wheel valves and

REASON FOR QUESTION

CTIS manifold valve vent hose

front wheel kneeling valves

and bulkhead fitting OK.

free from leaks and

Leaks at wheel valves and

Air hose and fittings OK.

damage?

front wheel kneeling valve(s)

Front axle CTIS quick

that cause rapid tire deflation

release valves OK.

will make five CTIS ECU

Intermediate axle CTIS

mode lights flash.

quick release valve OK.

Rear axle CTIS quick

release valve OK.

POSSIBLE PROBLEMS

Faulty

wheel valve.

Faulty

front wheel kneeling

Replace kneeling valve(s)

YES

valve.

or wheel valve(s) (para 12-5).

Faulty

wheel seals.

Faulty

electrical system.

Change 2