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Page Title:
TWO STEADY MODE LIGHTS ILLUMINATE ON CENTRAL TIRE INFLATION SYSTEM (CTIS) ECU (CONT) |
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 TM 9-2320-366-20-3
TM
m1. TWO STEADY MODE LIGHTS ILLUMINATE ON CENTRAL TIRE INFLATION SYSTEM (CTIS) ECU (CONT)
m1.
KNOWN INFO
TEST OPTIONS
3.
Air hoses from wet tank
Visual inspection
REASON FOR QUESTION
to manifold valve
Is air compressor
If two mode lights persist
assembly OK.
supplying enough air to
POSSIBLE PROBLEMS
during inflation with engine
CTIS for operation of
operating at 1,000 RPM for
Faulty air compressor or
inflation mode?
more than five minutes, air
supply from air compressor
Faulty wheel valve venting.
may be inadequate.
Faulty manifold valve
assembly relief valve.
Faulty manifold valve
assembly.
Faulty quick release
valve(s).
Faulty rear axle quick
NO
release valve fittings.
Faulty intermediate axle
quick release valve
fittings.
Perform Air System
Faulty intermediate
Troubleshooting (j1.
axle tee fittings.
Air System Loses Pressure
Faulty front quick
During Operation).
release valve fittings.
Faulty front tee fittings.
Faulty manifold valve
assembly delivery port
YES
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.
Go to step 6 of this fault.
2-2012
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