Due to legal requirements in some states and
Canadian Provinces, your vehicle may be re-
quired to be in what is called the “ready condi-
tion” for an Inspection/Maintenance (I/M) test of
the emission control system.
The vehicle is set to the “ready condition” when it
is driven through certain driving patterns. Usually,
the ready condition can be obtained by ordinary
usage of the vehicle.
If a powertrain system component is repaired or
the battery is disconnected, the vehicle may be
reset to a “not ready” condition. Before taking the
I/M test, check the vehicle’s inspection/
maintenance test readiness condition. Turn the
ignition switch ON without starting the engine. If
the Malfunction Indicator Light (MIL) comes on
steady for 20 seconds and then blinks for 10 sec-
onds , the I/M test condition is “not ready”. If the
MIL does not blink after 20 seconds, the I/M test
condition is “ready”. If the MIL indicates the ve-
hicle is in a “not ready” condition, drive the vehicle
through the following pattern to set the vehicle to
the ready condition. If you cannot or do not want
to perform the driving pattern, an INFINITI dealer
can conduct it for you.
WARNING
Always drive the vehicle in a safe and
prudent manner according to traffic con-
ditions and obey all traffic laws.
1. Start the engine when the engine coolant
temperature gauge needle points to C. Al-
low the engine to idle until the gauge needle
points between the C and H (normal oper-
ating temperature).
2. Accelerate the vehicle to 55 MPH (88 km/h),
then quickly release the accelerator pedal
completely and keep it released for at least
10 seconds.
3. Quickly depress the accelerator pedal for a
moment, then drive the vehicle at a speed of
53 - 60 MPH (86 - 96 km/h) for at least
9 minutes.
4. Stop the vehicle.
5. Accelerate the vehicle to 35 MPH (55 km/h)
and maintain the speed for 20 seconds.
6. Repeat steps 4 through 5 at least 10 times.
7. Accelerate the vehicle to 55 MPH (88 km/h)
and maintain the speed for at least 3 min-
utes.
8. Stop the vehicle. Place the transmission se-
lector lever in the P (Park) or N (Neutral)
position.
9. Turn the engine off.
10. Repeat steps 1 - 8 at least one more time.
If steps 1 through 7 are interrupted, repeat the
preceding step. Any safe driving mode is accept-
able between steps. Do not stop the engine until
step 7 is completed.
READINESS FOR INSPECTION/
MAINTENANCE (I/M) TEST
Technical and consumer information
9-31
Z
REVIEW COPY—
2009 Infiniti QX56 (iwz)
Owners Manual—USA_English (nna)
02/29/08—tbrooks
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