Full Product Manual

In order for the OBD monitor system to become ready, the vehicle
should be driven under a variety of normal operating conditions.
These operating conditions may include a mix of highway driving
and stop and go, city type driving, and at least one overnight-off
period. For specific information on getting your vehicle's OBD
monitor system ready, please consult your vehicle Owner's Manual.
2.6 OBD II Definitions
Power-train Control Module (PCM) -- OBD II terminology for
the on-board computer that controls engine and drive train.
Malfunction Indicator Light (MIL) -- Malfunction Indicator Light
(Service Engine Soon, Check Engine) is a term used for the light
on the instrument panel. It is to alert the driver and/or the repair
technician that there is a problem with one or more of vehicle's
systems and may cause emissions to exceed fe
deral standards. If
the MIL illuminates with a steady light, it indicates that a problem
has been detected and the vehicle should be serviced as soon
as possible. Under certain conditions, the dashboard light will
blink or flash. This indicates a severe problem and flashing is
intended to discourage vehicle operation. The vehicle onboard
diagnostic system can not turn the MIL off until necessary
repairs are completed or the condition no longer exists.
DTC -- Diagnostic Trouble Code that identifies which section
of the emission control system has malfunctioned.
Enabling Criteria -- Also termed Enabling Conditions. These
are the vehicle-specific events or conditions that must occur
within the engine before the various monitors will set or run.
Some monitors require the vehicle to follow a prescribed “drive
cycle” routine as part of the enabling
criteria. Drive cycles vary
among vehicles and for each monitor in any particular vehicle.
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