Expedition 4WD V8-4.6L SOHC VIN 6 (1997)
Audible Warning Device: Description and Operation
Door Ajar Warning Chime
The door ajar warning chime warns that a door has become ajar. The door ajar warning chime is a single tone with a duration of one second. The chime
will sound when the right front, right rear, left front, left rear, liftgate, or liftgate glass initially becomes ajar while the ignition switch is in the RUN
position. The door ajar warning chime inputs are:
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Ignition switch RUN position (battery potential on both RUN and RUN/ACC inputs).
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Door open warning lamp switches (grounded when ajar, open circuit when closed).
Headlamps on Warning
The headlamp warning chime warns that the headlamps are on when driver door is ajar. The headlamps warning chime will sound when all the following
conditions are met:
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Driver door is ajar.
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Headlamp switch is in the PARK or HEAD position.
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Ignition switch state is in the OFF/LOCK position.
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Key-out.
The headlamps warning chime will stop sounding when:
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Any one of the conditions above are removed.
The headlamps warning chime inputs are:
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Ignition switch OFF/LOCK (open circuit on all ignition inputs).
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Headlamp switch (battery potential when in PARK or HEAD position, open circuit when in OFF position).
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LF door open warning lamp switch (open circuit with door closed, grounded with door ajar).
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Key-in-ignition switch (grounded with key-in-ignition, open circuit with key-out).
Key-In-Ignition Warning
The key-in-ignition chime warns that the key is still in the ignition when the driver door is ajar. The key-in-ignition warning chime will sound when:
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Driver door is ajar, the ignition switch is in the OFF/LOCK or ACC position and the keys are in the ignition.
The key-in-ignition warning chime will stop sounding when:
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Driver door is closed.
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Key is removed from the ignition.
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Ignition switch is switched to the RUN position.
The key-in-ignition warning chime inputs are:
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Ignition switch RUN position (battery potential on both RUN and RUN/ACC inputs).
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Ignition switch ACC position (battery potential on RUN/ACC input only).
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Key-in-ignition switch (grounded with key-in-ignition, open circuit with key-out).
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LF door open warning lamp switch (open circuit with door closed, grounded with door ajar).
Low Washer Fluid Warning Chime
The low washer fluid warning chime warns that the washer fluid level is low. The low washer fluid warning chime is a single tone with a duration of one
second. The chime will sound when the low washer fluid lamp is initially activated.
Safety Belt Warning
The safety belt warning chime warns that the safety belt is not fastened. The safety belt warning chime will sound when:
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The driver safety belt is not fastened and the ignition switch is turned from the OFF/LOCK or ACC to the RUN or START position.
The safety belt warning chime will stop sounding when:
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Safety belt fastened.
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Ignition switch is switched from the RUN or START to the OFF/LOCK or ACC position.
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After chime has sounded for six seconds.
The safety belt warning chime inputs are:
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Ignition switch START position (battery potential when in START position).
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Ignition switch RUN position (battery potential on both the RUN and RUN/ACC inputs).
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Driver safety belt switch (grounded when not fastened, open circuit when fastened).
Warning Chime System
The GEM controls the following warnings and chimes:
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Driver safety belt not fastened warning (warning lamp and repetitive chime).
