TWO STEADY MODE LIGHTS ILLUMINATE ON CENTRAL TIRE INFLATION SYSTEM (CTIS) ECU (cont)

TM 9-2320-366-20-3

WARNING

Wear appropriate eye protection when working

under vehicle due to the possibility of falling

debris. Failure to comply may result in injury

to personnel.

NOTE

Two steady mode lights are an indication

that the CTIS has disconnected operation

because of particular inflation or deflation

sequence has taken longer than limits

allow (40 minutes for inflate; 20 minutes

for deflate).

Two steady mode lights indicates that

system shut off with air pressure between

modes.

The CTIS may still operate including

modes that are illuminated by manually

pressing the desired mode.

To perform deflate or inflate checks

throughout this task, it will be necessary

to perform the opposite function first from

time to time so that a desired mode

selection is available.

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

(2) Select an inflation mode on CTIS ECU

(TM 9-2320-366-10-1) and determine if two

light mode is displayed.

(3) Select RUN FLAT mode or shut down engine

and restart engine (TM 9-2320-366-10-1)

again to reset ECU.

(4) Select a deflation mode on CTIS ECU (TM 9-

2320-366-10-1) and determine if two light

mode is displayed.

(5) Shut down engine (TM 9-2320-266-10-1).

(6) If two steady light mode lights do not

illuminate during inflation, go to step 4 of

this fault.

Change 1

2-2009