User Manual - Page 85

For 2018 JEEP WRANGLER.

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WARNING!
ONLY an authorized service technician
should connect equipment to the OBD II
connection port in order to read the VIN,
diagnose, or service your vehicle.
If unauthorized equipment is connected
to the OBD II connection port, such as a
driver-behavior tracking device, it may:
Be possible that vehicle systems,
including safety related systems,
could be impaired or a loss of ve-
hicle control could occur that may
result in an accident involving seri-
ous injury or death.
Access, or allow others to access,
information stored in your vehicle
systems, including personal infor-
mation.
For further information, refer to “Cybersecu-
rity” in “Multimedia”.
EMISSIONS INSPECTION
AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal require-
ment to pass an inspection of your vehicle's
emissions control system. Failure to pass
could prevent vehicle registration.
For states that require an Inspec-
tion and Maintenance (I/M), this
check verifies the “Malfunction
Indicator Light (MIL)” 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.
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 posi-
tion, 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 “Mal-
function 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 ten 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 igni-
tion in the off position or start the engine.
This means that your vehicle's OBD II sys-
tem is ready and you can proceed to the I/M
station.
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