F 150 4WD Pickup V8-5.4L SOHC VIN 3 (1999)
Audible Warning Device: Description and Operation
Warning Devices
The warning device system consists of the following:
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key-in-ignition warning switch
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door open warning lamp switch
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Central Timer Module (CTM)
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Generic Electronic Module (GEM)
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driver safety belt switch (integral to the safety belt buckle)
