Aviator 2WD V8-4.6L DOHC (2003)
Audible Warning Device: Description and Operation
The instrument cluster controls the following warnings and chimes:
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driver or passenger safety belt not fastened warning chime (warning times out)
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key-in-ignition warning (repetitive chime)
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headlamp-on warning (repetitive chime)
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door ajar warning (repetitive chime)
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safety belt warning chime (repetitive chime)
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belt minder warning chime (repetitive chime after a delay and the safety belt chime has completed)
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air bag secondary warning (repetitive chime)
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fail-safe cooling warning (warning times out)
The safety belt warning chime warns that the safety belt is not fastened. The safety belt warning chime will sound when the driver or passenger 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 the safety belt is fastened, when the ignition switch is switched from the RUN or START to the
OFF/LOCK or ACC position, or when the chime has sounded for approximately six seconds.
The safety belt warning chime inputs are:
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ignition switch RUN/START position, voltage applied on RUN/START circuit 489 (PK/BK)
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ignition switch RUN/ACC position, voltage applied on RUN/ACC circuit 295 (LB/PK)
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driver or passenger safety belt switch data communicated by the restraint control module (RCM) to the instrument cluster on circuit 1390 (DB)
The safety belt warning lamp along with the chime warns that the safety belt is not fastened. The safety belt warning lamp will be illuminated when the
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 lamp will turn off when the safety belt is fastened, the ignition switch is moved from the RUN or START to the OFF/LOCK or
ACC position, or if the lamp is illuminated for approximately 6 seconds.
The safety belt warning lamp inputs are:
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ignition switch RUN/START position, voltage applied on RUN/START circuit 489 (PK/BK)
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ignition switch RUN/ACC position, voltage applied on RUN/ACC circuit 295 (LB/PK)
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driver or passenger safety belt switch data communicated by the RCM to the instrument cluster on circuit 1390 (DB)
NOTE: The belt minder 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 is enabled after the current safety belt warning is complete.
The belt minder reminds the driver that the driver or passenger safety belt is unbuckled by intermittently sounding a chime and illuminating the safety
belt warning lamp in the instrument cluster. While activated, the belt minder alternates the chime and indicator from on for 6 seconds to off for 30
seconds.
The air bag secondary warning chime sounds when there is a fault with the airbag indicator.
The air bag secondary warning chime inputs are:
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ignition switch RUN/START position, voltage applied on RUN/START circuit 489 (PK/BK)
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ignition switch RUN/ACC position, voltage applied on RUN/ACC circuit 295 (LB/PK)
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air bag secondary warning communicated by the restraint control module (RCM) to the instrument cluster on circuit - 390 (DB)
The door ajar warning chime warns that a door or liftgate is not fully closed. The chime will sound when any door or the liftgate becomes ajar while the
ignition switch is in the RUN position.
The door ajar warning indicator warns that a door or liftgate is not fully closed. The door ajar warning indicator will be illuminated when any door or the
liftgate initially becomes ajar while the ignition switch is in the RUN or START position.
The door ajar warning indicator will turn off when all doors and the liftgate are closed, or the ignition switch is turned to the OFF/LOCK or ACC
position.
The door/liftgate ajar warning lamp/chime inputs are:
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ignition switch RUN/START position, voltage applied on RUN/START circuit 489 (PK/BK)
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ignition switch RUN/ACC position, voltage applied on RUN/ACC circuit 295 (LB/PK)
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door/liftgate ajar data communicated by the vehicle security module to the instrument cluster on the UBP communication circuit 693 (OG)
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 the
driver door is ajar, the ignition switch is in the OFF/LOCK or ACC position and the key is in the ignition.
The key-in-ignition warning chime will stop sounding when the driver door is closed, the key is removed from the ignition, or if the ignition switch is
