Light Turns On Solid - Lincoln Town Car 1998 Owner's Manual

Instrumentation
will usually be drivable and will not
require towing.
What you should do if the
Service Engine Soon light
illuminates

Light turns on solid:

This means that the OBD II system
has detected a malfunction.
Temporary malfunctions may cause
your Service Engine Soon light to
illuminate. Examples are:
1. The vehicle has run out of fuel.
(The engine may misfire or run
poorly.)
2. Poor fuel quality or water in the
fuel.
3. The fuel cap may not have been
properly installed and securely
tightened.
These temporary malfunctions can
be corrected by filling the fuel tank
with good quality fuel and/or
properly installing and securely
tightening the gas cap. After three
driving cycles without these or any
other temporary malfunctions
present, the Service Engine Soon
light should turn off. (A driving
cycle consists of a cold engine
startup followed by mixed
city/highway driving.) No
additional vehicle service is
required.
If the Service Engine Soon light
remains on, have your vehicle
serviced at the first available
opportunity.
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