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

TM 9-2320-366-20-3

(1) Disconnect CTIS manifold output hose from

CTIS manifold valve assembly port C.

(2) Start engine (TM 9-2320-366-10-1).

(3) Select CTIS inflation mode

(TM 9-2320-366-10-1).

(4) Wait for CTIS to cycle and check for quick

bursts of air to expel from CTIS manifold valve

assembly port C.

(5) Check for five CTIS ECU indicator lights flashing.

(6) If air does not expel from CTIS manifold valve

assembly or CTIS ECU does not have five flashing

indicator lights, go to Electrical System

Troubleshooting (e85. Central Tire Inflation

System (CTIS) Does Not Operate).

(7) Shut down engine (TM 9-2320-366-10-1).

(8) Connect CTIS manifold output hose to

CTIS manifold valve assembly port C.

(9) Install kick panel (para 16-3).

NOTE

Five flashing indicator lights indicate

a defect in CTIS critical component(s)

causing system to shut off. Override

cannot be applied but system can be

activated by turning vehicle off and

then on again.

(1)

Start engine (TM 9-2320-366-10-1).

(2)

Set CTIS ECU to RUN FLAT mode

(TM 9-2320-366-10-1).

(3)

Check CTIS air hoses and fittings for leaks

(Table 23-2 Central Tire Inflation System (CTIS)

Air Hose Locations).

(4)

If any leaks are found, repair or replace CTIS

air hose and/or fittings (para 2-45).

(5)

Shut down engine (TM 9-2320-366-10-1).

Change 2

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