Warning light comes on on the dial when front passenger air bag is deactivated.
With front passenger air bag on, turning the ignition key to MAR, warning light
comes on flashing on the cluster for
about 4 seconds, then it flashes for other 4 seconds and then it shall go off.
WARNING
Warning light indicates also
warning light 
failure. This is indicated
by intermittent flashing, over 4 seconds, of warning light
. In this event, warning light
could be not up to indicate restraint
system failures, if any. Stop the car and contact Fiat Dealership to have the system
checked.
See also:
Vehicle protection system failure -Fiat code
(amber)
Turning the key to MAR the warning light shall flash only once and then go off.
If with the ignition key at MAR, the warning light stays on, this indicates a
possible failure (see “Fiat ...
3. Front Fog Light Indicator — If Equipped
This indicator will illuminate when the front fog lights are on. ...
Operation
Each time the car is started turning the ignition key to MAR, the Fiat CODE system
control unit sends a recognition code to the engine control unit to deactivate the
inhibitor.
The code is sent o ...