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

Visual Inspection

Front and rear air gages read

120 PSI.

Are wheel seals free from

REASON FOR QUESTION

CTIS manifold valve vent hose

major leaks?

and bulkhead fitting OK.

Seriously damaged wheel

Air hose and fittings OK.

seals will audibly exhaust

Front axle CTIS quick

air and cause CTIS to

release valves OK.

shutdown with five CTIS

Intermediate axle CTIS

ECU mode lights flashing.

quick release valve OK.

Rear axle CTIS quick

release valve OK.

Wheel valves OK.

Front wheel kneeling

valves OK.

POSSIBLE PROBLEMS

Replace wheel seals

YES

(para 12-2).

Faulty wheel seals.

Faulty electrical system.

Go to Electrical System Troubleshooting

(e85. Central Tire Inflation System (CTIS)

Does Not Operate).

(2-2101 Blank)/2-2102

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