Ford Mystique Owner's Manual page 15

Instrumentation
Charging System Light
This light indicates that your battery is not being charged and
that you need to have the electrical system checked.
This light illuminates every time you turn the ignition to the
ON or START position (engine off). The light should go off
when the engine starts and the alternator begins to charge.
If the light stays on or illuminates when the engine is running,
have the electrical system checked as soon as possible.
Engine Oil Pressure Warning Light
This light indicates the engine's oil pressure, not the oil level.
However, if your engine's oil level is low, it could affect the oil
pressure. The light will come on briefly when you turn your
key to the START and ON position. The light should stay off
when the engine is running with normal oil pressure. If the
light comes on while the engine is running, you have lost oil
pressure and continued operation will cause severe engine
damage.
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