TM 9-2320-365-20-2
2-1802
3.
Soapy Water Leak Test
NO
Are CTIS wheel valves
and front wheel
kneeling valves free
from leaks and damage
at affected wheel(s)?
YES
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Air leaks from wheel
valves and kneeling valve
at front wheels may cause
four CTIS ECU indicator
lights to flash.
Air pressure at wet tank OK.
Tires OK.
CTIS wheel seals OK.
Faulty kneeling
valve(s) at front
wheel(s).
Faulty CTIS wheel
valve(s).
Faulty air hoses from
quick release valve
to affected wheel(s).
Faulty front axle
quick release valve.
Faulty rear axle
quick release valve(s).
Faulty rear axle
quick release valve
fittings.
Faulty front axle quick
release valve fittings.
Faulty front tee
fittings.
Faulty manifold valve
assembly delivery port
fittings.
Faulty cab floor air
hose fittings.
Faulty manifold valve
assembly.
Faulty CTIS ECU.
Clean or replace
kneeling valve (para
12-5). Replace wheel
seal (para 12-5).
m2. FOUR CTIS ECU INDICATOR LIGHTS FLASHING (CONT)
