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

TM 9-2320-366-20-3

m1. TWO STEADY MODE LIGHTS ILLUMINATE ON CENTRAL TIRE INFLATION SYSTEM (CTIS) ECU (CONT)

m1.

KNOWN INFO

TEST OPTIONS

Two steady mode lights

Soapy Water Leak Test

illuminate during inflation.

POSSIBLE PROBLEMS

Are air hoses from wet tank

REASON FOR QUESTION

Faulty air hoses from wet

Steady Mode lights may

to manifold valve assembly

tank to manifold valve

light if an air leak is

free from leaks?

assembly.

present.

Faulty air compressor or

governor adjustment.

Faulty wheel valve venting.

Faulty manifold valve

assembly relief valve.

Faulty manifold valve

assembly.

Faulty quick release

valve(s).

Faulty rear axle quick

release valve fittings.

Faulty intermediate axle

quick release valve

Tighten loose air hoses.

fittings.

Replace damaged air hoses

Faulty intermediate

and/or fittings (para 23-2).

axle tee fittings.

Faulty front quick

release valve fittings.

Faulty front tee fittings.

Faulty manifold valve

YES

assembly delivery port

fittings.

Faulty cab floor supply

hose fittings.

Faulty supply hoses from

quick release valve(s) to

wheel valve(s).

Faulty wheel valve filters.

Faulty electrical connections

at CTIS ECU and manifold

valve assembly.

Faulty ECU.

2-2010