DANA-AXTS0015
DANA SPICER CTIS (CENTRAL TIRE INFLATION SYSTEM)
TROUBLESHOOTING GUIDE
JULY 2010
DANA-AXTS0015 - Page 13 of 72
10
Operator Instructions
Driver Display Module
Driver Display Module (DDM)—Warning
Signals
CTIS includes two distinct warnings to report possible tire
problems and inappropriate vehicle operation. You must take
immediate action to either reduce vehicle speed or check tire
condition whenever these warnings are displayed.
Over Speed Flashing
This signal reports that the vehicle speed is too fast for the
pressure selected. You must either reduce speed or select a
higher pressure by pressing the appropriate key. Continued
operation in this mode will result in the system automatically
selecting a more appropriate pressure setting.
Check Tire Flashing
This signal reports that one or more tires may be at a signifi-
cantly lower pressure than the others and could indicate that a
tire is not holding pressure. Blinking channel indicators (FRT
or RR) indicate the fault location. Stop the vehicle immedi-
ately in a safe place and identify the extent of tire damage.
Tires can still go flat! Although the Central Tire Inflation Sys-
tem is designed to identify under-inflated tires and fill these
tires to the desired operating pressure, you can still expect
that tires will occasionally be punctured or otherwise dam-
aged during normal use and no longer retain air reliably. A
daily walk-around inspection of the vehicle at the start of the
day, including a manual check of the tires, is still an important
responsibility of the vehicle operator. Tire damage is more
apparent after the vehicle has been idle overnight and will be
more difficult to detect visually once the CTIS equipped vehi-
cle is in operation. Although observation of excessive inflation
periods through the driver interface can help identify a tire
problem, you should have damaged tires replaced prior to
placing the vehicle in operation.
IMPORTANT
Back to Top
