Expedition 4WD V8-4.6L SOHC VIN 6 (1997)
Audible Warning Device: Description and Operation
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).
