Dodge 2016 Challenger, Operating Information Manual

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Loose Fuel Filler Cap
If the vehicle diagnostic system determines that
the fuel filler cap is loose, improperly installed,
or damaged, a ”gASCAP” message will display
in the odometer or a “Check Gascap” message
will display in the Driver Information Display
(DID). If this occurs, tighten the fuel filler cap
properly and press the Trip Odometer button to
turn off the message. If the problem continues,
the message will appear the next time the
vehicle is started.
A loose, improperly installed, or damaged fuel
filler cap may also turn on the MIL.
EMISSIONS INSPECTION AND
MAINTENANCE PROGRAMS
In some localities, it may be a legal requirement
to pass an inspection of your vehicle’s emis-
sions control system. Failure to pass could
prevent vehicle registration.
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.
Your vehicle has a simple ignition actuated test,
which you can use prior to going to the test
station. To check if your vehicle’s OBD II system
is ready, you must do the following:
1. Cycle the ignition switch to the ON position,
but do not crank or start the engine.
NOTE:
If you crank or start the engine, you will have
to start this test over.
2. As soon as you cycle the ignition switch to
the ON position, you will see the “Malfunc-
tion Indicator Light (MIL)” symbol come on
as part of a normal bulb check.
3. Approximately 15 seconds later, one of two
things will happen:
•
The MIL will flash for about 10 seconds and
then return to being fully illuminated until you
turn OFF the ignition or start the engine. 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 not flash at all and will remain
fully illuminated until you place the ignition in
the off position or start the engine. 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 your authorized 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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