001-055 Alfa 156 GB - Alfa Romeo serviss

GETTING TO KNOW YOUR CAR
182
WARNING LIGHT ON
INSTRUMENT PANEL
When the ignition key is turned to MAR,
the dial warning light á comes on but must
go out after a few seconds.
If the warning light does not go out, or if it
stays on (together with the message + symbol
on the display and the coming on of the
ASR button led) when the vehicle is running,
contact Alfa Romeo Authorized Services.
The flashing of the warning lamp when the
vehicle is running indicates the actuation of
the VDC system.
VDC system failure warning
In the event of a failure the VDC system
disengages automatically and the á warning
light on the instrument cluster turns on
glowing steadily (together with the message
+ symbol shown on the display and the coming
on of the ASR button led).
In the event of a VDC system failure the
car behaves like a vehicle not fitted with this
system: in any case it is advisable to contact
Alfa Romeo Authorized Services as soon
as possible.
EOBD SYSTEM
The EOBD system (European On Board Diagnosis)
allows continuous diagnosis of the
components of the car correlated with emissions.
It also alerts the driver, by turning on the
warning light U on the instrument panel
(together with the message + symbol
shown by the display), when these conditions
are no longer in peak conditions.
The objective is the following:
– to keep under control the efficiency of
the system;
– to indicate when a malfunction causes
an increase in the emissions beyond the
threshold established by European regulations;
– to indicate the need to replace the deteriorated
components.
The system also has a diagnostic connector,
which can be interfaced with adequate instruments,
that enables the error codes stored
in the control unit to be read, together with
a series of specific parameters concerning the
operation and diagnosis of the engine. This
check can also be made by the traffic control
agents.
If, when the ignition key
is turned to MAR, the U
warning light does not
come on or if, when driving, it
lights up and emits a fixed light or
a flashing one (together with the
message + symbol shown by the
display), contact an Alfa Romeo
Authorized Service Station as soon
as possible. The operation of the
U warning light can also be
checked by means of special equipment
available to the traffic control
officers. Comply with the regulations
in force in country where
you drive your car.
WARNING After the problem has beel
resolved, to completely check the system,
the Alfa Romeo Authorized Services must
carry out tests on a test bench and, if necessary,
road tests that could be long.