Jeep GLADIATOR 2022 Owner's Manual page 123

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 Malfunction 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 an
authorized dealer or repair facility. If your vehicle was
recently serviced or had a battery failure or replace-
ment, 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 previously men-
tioned test routine may then indicate that the system is
now ready.
Regardless of whether your vehicle's OBD II system is
ready, 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.
GETTING TO KNOW YOUR INSTRUMENT PANEL 121
3