Table 3-2. CTIS Indications
CTIS STATUS INDICATION
SINGLE MODE LIGHT: STEADY.
None. Air pressure achieved, wheel valves closed, and system stable.
SINGLE MODE LIGHT: FLASHING.
None. System working to achieve new air pressure.
TWO MODE LIGHTS ON: STEADY.
System has shut off with tire pressure between two settings, but vehicle and CTIS are still operational.
Monitor and, if indication is repeated frequently, notify supervisor.
FOUR MODE LIGHTS FLASHING.
System has shut off due to air leak or possible tire damage and is waiting for operator instruction.
Select RUN FLAT, if tire damage is minimal (vehicle is still operational).
Change tire if tire damage is not minimal (para. 3-11).
Check for air leaks (para. 3-3).
FIVE LIGHTS FLASHING.
If CTIS is not operational, disconnect electrical connector from Electronic Control Unit (ECU) and
complete mission (para. 3-16).
System has shut off due to fault detection of CTIS component or system has major air leak.
Check for air leaks (para. 3-3) and reset CTIS (para. 3-16).
Disable CTIS (para. 3-16) and notify unit maintenance.
RUN FLAT SELECTOR FLASHING (WITH A STEADY OR FLASHING MODE LIGHT).
None. RUN FLAT has been selected, and tire pressure is being checked at frequent intervals (every 15 seconds).
May be turned off by depressing run flat mode.