F 250 4WD Super Duty V10-6.8L VIN Z CNG (2003)
Audible Warning Device: Description and Operation
PRINCIPLES OF OPERATION
Safety Belt Warning Chime
The safety belt warning chime warns that the safety belt is not fastened. The safety belt warning chime will sound when the driver safety belt is not
fastened and the ignition switch is turned to RUN or START.
The safety belt warning chime will stop sounding when:
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the safety belt is fastened.
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the ignition switch is switched to the OFF/LOCK or ACC position.
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the chime has sounded for six seconds.
The safety belt warning chime inputs are:
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ignition switch START position (clutch pedal depressed)
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ignition switch RUN position
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driver safety belt switch
Output is the instrument cluster chime.
Belt Minder
The belt minder feature is configurable. To configure without using a diagnostic tool, refer to Belt Minder Deactivating/Activating.
The belt minder feature supplements the current safety belt warning function. The belt minder feature is enabled after the current safety belt warning is
complete. The belt minder reminds the driver that their safety belt is unbuckled by intermittently sounding a chime and illuminating the safety belt
warning lamp in the instrument cluster once the vehicle speed has exceeded three mph. While activated, the belt minder alternates the chime and
indicator from ON for six seconds to OFF for 30 seconds.
The belt minder reminder stops when:
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the driver safety belt is buckled.
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the ignition is turned to OFF or ACC.
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five minutes have elapsed since the belt minder has started.
Door Ajar Warning Chime
The door ajar warning chime warns that a door is ajar. The door ajar warning chime is a single chime with a one second duration. The door ajar chime
will sound when the driver or passenger door 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
-
door ajar switches
The output is the instrument cluster chime.
Key-In-Ignition Warning Chime
The key-in-ignition chime warns that the key is in the ignition when the driver door is ajar. The key-in-ignition warning chime will sound when all the
following conditions are met:
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The driver door is ajar.
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The key is in the ignition.
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The ignition switch is in the OFF/LOCK or ACC position.
The key-in-ignition warning chime will stop sounding when:
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The driver door is closed.
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The key is removed from the ignition.
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The ignition switch is switched to the RUN position.
The key-in-ignition warning chime inputs are:
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ignition switch RUN position
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ignition switch ACC position
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key-in-ignition switch
-
LH door ajar switch
Output is the instrument cluster chime.
Headlamp On Warning Chime
The headlamp on warning chime warns that the headlamps are on while the driver door is ajar. The headlamp on warning chime will sound when all
the following conditions are met:
