Maserati GranTurismo Coupe Owner's Manual page 51

Engine control system
failure OBDII
Under normal conditions, the
warning light should switch on when
the ignition key is turned to the MAR
position and switch off as soon as the
engine is started. This will show that
the warning light is working properly.
If the warning light remains on or
switches on while driving, it indicates
that there is a failure in the fuel supply/
ignition and emission control systems.
The failure could cause high exhaust
emissions, loss of performance, poor
driving conditions and high fuel
consumption levels.
Under these conditions you can
proceed slowly without demanding
engine performance or high speed.
Prolonged use of the car when the
warning light is on can cause damage.
For this reason, you should contact
your Authorized Maserati Dealer as
soon as possible. The warning light will
go out if the problem disappears. The
error will be stored by the system in
any case.
WARNING: When you turn the ignition
key to the MAR position and the
does not light up or switches on when
driving the car, contact your
Authorized Maserati Dealer as soon as
possible.
Catalytic converter high
temperature warning
light
Turning the key to MAR the warning
light comes on for self-diagnosis, but
should go out after starting the
engine.
This warning light starts flashing or
comes on with a fixed light when
engine malfunction results in high
exhaust system temperature.
WARNING LIGHT FLASHING:
catalyst temperature is too
high. Reduce speed
immediately until the warning light
goes out and then drive carefully at
moderate speed. Contact your
Authorized Maserati Dealer as soon as
possible for service.
IF THE WARNING LIGHT
U U U U
CONTINUES FLASHING OR
STAYS ON AFTER HAVING
REDUCED THE SPEED: dangerous
temperature in the catalytic
converters, catalysts can be damaged.
Stop the car immediately and have it
towed to the nearest Authorized
Maserati Dealer for service.
Maserati declines all
responsibility any damage
caused from non compliance
with the above mentioned warnings.
Defective wheel anti-
lock system (ABS)
Switches on when a problem
is detected in the ABS system is
defective. The normal brake system
remains operational, but it is advisable
to contact your Authorized Maserati
Daler as soon as possible.
Indicators and warning lights
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