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

TM 9-2320-366-20-2

e85. CENTRAL TIRE INFLATION SYSTEM (CTIS) DOES NOT OPERATE (CONT)

KNOWN INFO

TEST OPTIONS

15.

Resistance Test or

VOLTS gage registers in green

STE/ICE-R Test #91

zone with engine running.

Is 1-50 ohms resistance

REASON FOR QUESTION

Circuit breaker CB40 OK.

present from pressure

FRONT BRAKE AIR and

transducer connector pin C

If 1-50 ohms resistance is not

REAR BRAKE AIR pressure

to pin A?

present, pressure transducer is

gages read normal.

faulty.

Air pressure switch OK.

Start and charging cable

assembly OK.

WTEC II / WTEC III dashboard

cable assembly OK.

Manifold valve assembly OK.

POSSIBLE PROBLEMS

Replace pressure transducer

Faulty air pressure transducer.

YES

(para 12-7).

Faulty CTIS ECU.

Faulty CTIS cable assembly.

Change 2