Eobd System - Alfa Romeo GT Owner's Manual

EOBD SYSTEM

(upon request for versions/
markets where applicable)
The EOBD system (European On Board Di-
agnosis) allows continuous diagnosis of the
components of the car correlated with emis-
sions.
It also alerts the driver, by turning on the
warning light U on the instrument panel
(on certain versions together with message
+ symbol on the reconfigurable multifunc-
tion display), when these components are
no longer in peak conditions.
The objective is:
– to keep the system efficiency under con-
trol;
– to warn when a fault causes emissions
levels to increase;
– to warn of the need to replace deterio-
rated components.
140
The system also has a diagnostic connec-
tor that can be interfaced with appropriate
tools, which makes it possible to read the
error codes stored in the control unit, to-
gether with a series of specific parameters
for engine operation and diagnosis. This
check can also be carried out by the traffic
police.
If, turning the ignition key
to MAR, the warning light
U does not turn on or if,
while travelling it turns on glow-
ing steadily or flashing (on some
versions together with the mes-
sage + symbol on the reconfig-
urable multifunction display), con-
tact Alfa Romeo Authorised Ser-
vices as soon as possible.
IMPORTANT After eliminating the in-
convenience, to check the system com-
pletely, Alfa Romeo Authorised Services are
obliged to run a bench test and, if necessary,
road tests which may also call for a long jour-
ney.