Maserati GranTurismo 2024 Owner's Manual page 297

The system stores as well diagnostic
codes and other information to assist
your service technician by performing
repairs.
Although the vehicle will be driveable
and will not need towing, contact an
Authorized Maserati Dealer for service
as soon as possible.
CAUTION!
•
When the ignition device is in the ON
position and if the indicator light does
not switch on or if it switches on
while driving, contact an Authorized
Maserati Dealer as soon as possible.
• Prolonged driving with the MIL on
could cause damage to the engine
control system. It also could affect fuel
economy and drivability.
• The warning light flashes to indicate
operating states which might lead to
damage in catalytic converter and
engine performance degradation. A
drive mode change occur. If this occur
immediately reduce the vehicle speed
and engine load. The warning light
should switch off after the critical
range is left.
• If the warning light continues to
flash or it switches to solid lamp, it
indicates a persistent fault in the
engine management system that may
cause a severe damage to catalytic
converter and a power loss could
occur. In this case contact immediately
an Authorized Maserati Dealer.
Emissions Inspection and
Maintenance Programs
In some localities, it may be a legal
requirement to pass an inspection of
your vehicle's emissions control system.
Failure to pass could prevent vehicle
registration. For states that require an
Inspection and Maintenance (I/M), this
check verifies the "Malfunction Indicator
Light " is functioning and is not on
when the engine is running, and that the
OBD II system is ready for testing.
Normally, the OBD II system will be
ready. The OBD II system may not be
ready if your vehicle was recently
serviced, recently had a dead battery
or a battery replacement. If the OBD II
system should be determined not ready
for the I/M test, your vehicle may fail the
test.
To check if your vehicle's OBD II system
is ready, you must do the following:
1. Press the ignition device to the ON
position, but do not crank or start
the engine.
2. As soon as you press the ignition
device to turn the engine On, you
will see the MIL remain illuminated
Maintenance and Care
for 15 seconds, this is a normal bulb
check.
3. Approximately 15 seconds later,
one of two things will happen:
- The MIL will remain
illuminated and a message error
will appear on your instrument
cluster. This means that your
vehicle's OBD II system is not
ready and you should not proceed
to the I/M station.
- The MIL will turn Off. This
means that your vehicle's OBD
II system is ready and you can
proceed to the I/M station.
If your OBD II system is not ready, you
should see an Authorized Maserati
Dealer or repair facility. If your vehicle
was recently serviced or had a battery
failure or replacement, you may need to
do nothing more than drive your vehicle
as you normally would in order for your
OBD II system to update. A recheck with
the above test routine may then indicate
that the system is now ready.
Regardless of whether your vehicle's
OBD II system is ready or not, if the MIL
is illuminated during normal vehicle
operation you should have your vehicle
serviced before going to the I/M station.
The I/M station can fail your vehicle
because the MIL is on with the
engine running.
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