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

12.

Resistance Test or

VOLTS gage registers in green

STE/ICE-R Test #91

zone with engine running.

Is 30-80 ohms resistance

REASON FOR QUESTION

Circuit breaker CB40 OK.

present from pneumatic

FRONT BRAKE AIR and

controller connector pin E to

If 30-80 ohms resistance is

REAR BRAKE AIR pressure

pin A?

not present, manifold valve

gages read normal.

assembly is faulty.

Air pressure switch OK.

Start and charging cable

assembly OK.

WTEC II / WTEC III dashboard

cable assembly OK.

POSSIBLE PROBLEMS

Faulty air pressure transducer.

Faulty manifold valve

assembly.

Faulty CTIS ECU.

Repair manifold valve assembly

YES

Faulty CTIS cable assembly.

(para 12-7).

2-958.2

Change 2