TM-9-2320-365-20-1

M1078 SERIES, 2 1/2-TON, 4 X 4, LIGHT MEDIUM TACTICAL VEHICLES (LMTV)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 1 OF 5

FEBRUARY 2006

CHANGE 3

TM-9-2320-365-20-1 - Page 1324 of 1760

KNOWN INFO

TEST OPTIONS

REASON FOR QUESTION

TM 9-2320-365-20-1

YES

NO

e82. CENTRAL TIRE INFLATION SYSTEM (CTIS) DOES NOT OPERATE (CONT)

Continuity Test or

STE/ICE-R Test #91

Replace CTIS cable assembly

(para 7-53).

KNOWN INFO

TEST OPTIONS

REASON FOR QUESTION

YES

NO

Continuity Test or

STE/ICE-R Test #91

Is continuity present from

connector P110 socket j to

connector P113 socket A?

19.

Replace CTIS cable assembly

(para 7-53).

Go to step 20 of this fault

2-918.10

Change 2

18.

Is connector P113 socket A,

socket B, or socket C short

circuited?

VOLTS gage registers in green

zone with engine running.

Circuit breaker CB40 OK.

FRONT BRAKE AIR and

REAR BRAKE AIR pressure

gages read normal.

Air pressure switch OK.

Start and charging cable

assembly OK.

WTEC II / WTEC III dashboard

cable assembly OK.

Manifold valve assembly OK.

POSSIBLE PROBLEMS

VOLTS gage registers in green

zone with engine running.

Circuit breaker CB40 OK.

FRONT BRAKE AIR and

REAR BRAKE AIR pressure

gages read normal.

Air pressure switch OK.

Start and charging cable

assembly OK.

WTEC II / WTEC III dashboard

cable assembly OK.

Manifold valve assembly OK.

POSSIBLE PROBLEMS

Faulty air pressure transducer.

Faulty CTIS ECU.

Faulty CTIS cable assembly.

Faulty air pressure transducer.

Faulty CTIS ECU.

Faulty CTIS cable assembly.

If continuity is not present,

CTIS cable assembly is faulty.

If connector P113 is short

circuited, CTIS cable assembly

is faulty.