TM 9-2320-365-20-2
2-1772
NO
YES
3.
Is air compressor
supplying enough air to
CTIS for operation of
inflation mode?
If two mode lights persist
during inflation with engine
operating at 1,000 RPM for
more than five minutes, air
supply from air compressor
may be inadequate.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Air hoses from wet tank
to manifold valve
assembly OK.
Visual inspection
Go to step 6 of this fault.
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 front quick
release valve fittings.
Faulty front tee fittings.
Faulty manifold valve
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.
Perform Air System
Troubleshooting (j1.
Air System Loses Pressure
During Operation).
m1. TWO STEADY MODE LIGHTS ILLUMINATE ON CTIS ECU (CONT)
