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Modification or additions to the vehicle may
cause incorrect operation of the OBD 11
system. Additions such as burglar alarms,
cellular phones, and CB radios must be
carefully installed. Do not install these
devices by tapping into or running wires close
to powertrain control system wires or
components.
SERVICE
ENGINE
SOON
The light comes on briefly when you turn the ignition
to the ON position, but should turn off when the
engine starts. If the light does not come on when you
turn the ignition to the ON position or if it comes on
and stays on when you are driving, have your vehicle
serviced as soon as conveniently possible.
This indicates a possible problem with one of the
vehicle's emission control systems. You do not
need to have your vehicle towed in.
If the light turns on and off at one second intervals
while you are driving the vehicle, it means that the
engine is misfiring. If this condition persists,
damage could occur to the engine or catalytic
convertor. Have your vehicle serviced at the first
opportunity.
If the light turns on and off on rare occasions
while you are driving, it means that a malfunction
occurred and the condition corrected itself.
An example of a condition which corrects itself
occurs when an engine running out of fuel begins
to misfire. In this case, the Service Engine Soon
Light may turn on and will then set a diagnostic
trouble code indicating that the engine was
misfiring while the last of the fuel was being
consumed. After refueling, the Service Engine
Soon Light wfll turn off after the vehicle has
completed three consecutive warm up cycles
without a misfire
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